Study on the catalytic degradation of dibutyl phthalate by ferric cerium bimetal in electric-Fenton system

doi:10.12034/j.issn.1009-606X.220135

Abstract

Abstract:

Dibutyl phthalate as a plasticizer is widely used in all walks of life. As an endocrine interferon, the pollution caused by it cannot be ignored, and it will harm the health of biology and human body. Because it is difficult to degrade effectively in common wastewater treatment processes, it is urgent to find effective treatment methods. As one of the advanced oxidation technologies, electro-Fenton has great advantages in treating refractory wastewater and has made many achievements. But the difficulty of electro-Fenton technology is to find an efficient and reusable catalyst. In this work, an efficient bimetal catalyst for the treatment of dibutyl phthalate in electro-Fenton system was studied. Aluminum modified bimetallic catalyst Fe-Ce/Al-MCM-41, was prepared by hydrothermal-calcination method using MCM-41 as template and characterized by XRD, BET and FT-IR. Taking dibutyl phthalate simulated wastewater as the treatment object, the effects of four different conditions, such as initial pH, catalyst dosage, current intensity and oxygen flux, on the degradation efficiency of Perth-carbon felt electro-Fenton system were discussed, and the best operation conditions were found. The characterization results showed that the loading of metal ions did not change the mesoporous structure of MCM-41, which provided sufficient active sites for the follow-up reaction. Under the best experimental conditions, the removal rate of 10 mg/L DBP was 97.1%, the removal rate under acidic and neutral conditions was more than 92.1%, and the removal rate of DBP was reduced under alkaline conditions. Through the comparative experimental analysis of the degradation mechanism, it was found that the iron and cerium bimetallic catalyst had good catalytic activity for the degradation of dibutyl phthalate in electric-Fenton system. Among them, iron ion and cerium ion participated in the catalytic reaction and had synergistic effect, while aluminum ion did not directly participate in the catalytic reaction, but the addition of aluminum ion can improve the catalytic performance of the catalyst. In addition, carbon felt as a cathode had a certain adsorption effect. The main active substance in the electro-Fenton system for the degradation of DBP was ·OH, degrades the target pollutants by the oxidation of ·OH.

<fig fig-type="abstract-image" id="F1" orientation="portrait" position="float"><graphic xmlns:xlink="http://www.w3.org/1999/xlink" xlink:href="1009-606X-2021-21-7-857/D9206CCC-1167-40a6-8C01-E4776E10DACD-F001.jpg"/></fig></sec> </p> <div></div> <p><strong>Key words: </strong> <a href="#" onClick="searchEnKeyword('https://www.jproeng.com','1','dibutyl phthalate')">dibutyl phthalate, </a> <a href="#" onClick="searchEnKeyword('https://www.jproeng.com','1','electro-Fenton')">electro-Fenton, </a> <a href="#" onClick="searchEnKeyword('https://www.jproeng.com','1','bimetallic catalyst')">bimetallic catalyst, </a> <a href="#" onClick="searchEnKeyword('https://www.jproeng.com','1','degradation conditions')">degradation conditions</a> </p> <p><strong>摘要： </strong><p> 以MCM-41为载体，采用水热-焙烧法制备了Al修饰双金属催化剂Fe-Ce/Al-MCM-41并进行了XRD、BET和FT-IR表征；以水体中的邻苯二甲酸二丁酯(DBP)为处理对象，在铂丝-碳毡电芬顿体系中研究了催化氧化降解DBP的效果和影响因素，探讨了降解机理。结果表明，铁、铈双金属催化剂在电芬顿体系降解邻苯二甲酸二丁酯中具有良好的催化活性，铝离子的加入能够提高催化剂的催化性能；最佳实验条件为pH=3、催化剂投加量0.5 g/L、电流强度<i>I</i>=0.15 A、通氧流量0.2 L/min、反应120 min、初始浓度10 mg/L，此时DBP去除率为97.1%，在酸性或中性条件下去除率稳定在92.1%以上，碱性条件下DBP去除率降低，电流强度和通氧量达到饱和后对DBP降解率影响很小，并且催化剂投加过量会导致催化效果降低。此电芬顿体系中·OH的氧化反应是降解DBP的主要途径。 </p></p> <p><strong>关键词: </strong> <a href="#" onClick="searchKeyword('https://www.jproeng.com','1','邻苯二甲酸二丁酯')">邻苯二甲酸二丁酯, </a> <a href="#" onClick="searchKeyword('https://www.jproeng.com','1','电芬顿')">电芬顿, </a> <a href="#" onClick="searchKeyword('https://www.jproeng.com','1','双金属催化剂')">双金属催化剂, </a> <a href="#" onClick="searchKeyword('https://www.jproeng.com','1','降解条件')">降解条件</a> </p> </form>  <form name="subjectSchemeForm" action="" method=post target=_blank> <input type="hidden" name="searchSQL" /> <input type="hidden" name="language" /> </form>  <p> <strong> CLC Number: </strong> </p> <ul class="list-unstyled pacs"> <li> <p> <a href="#" onclick="subjectScheme('https://www.jproeng.com','X703.1','1');return false;" target="_blank"> X703.1 </a> </p> </li> </ul>  <div class="row hidden-xs hidden-sm"> <div class="col-xs-12 col-sm-2 col-md-2 col-lg-2 margin-bottom-10 text-center"> <div class="text-primary btn-menu"> <h4>Cite this article</h4> </div> </div> <div class="col-xs-12 col-sm-10 col-md-10 col-lg-10 margin-bottom-10"> <div class="primary-border"> <p>Yingjun ZHENG, Hailing MENG, Zailiang LIU, Han ZHOU, Junjie ZHU. Study on the catalytic degradation of dibutyl phthalate by ferric cerium bimetal in electric-Fenton system[J]. The Chinese Journal of Process Engineering, 2021, 21(7): 857-864.</p> <p>郑应俊, 孟海玲, 刘再亮, 周晗, 朱俊杰. 电芬顿体系中铁铈双金属催化剂降解邻苯二甲酸二丁酯研究[J]. 过程工程学报, 2021, 21(7): 857-864. </p> </div> </div> </div> <div class="row hidden-xs hidden-sm"> <div class="col-xs-12 col-sm-2 col-md-2 col-lg-2 margin-bottom-10 text-center"> <div class="btn-menu bs-callout-warning"> <h4>share this article</h4> </div> </div> <div class="col-xs-12 col-sm-10 col-md-10 col-lg-10 margin-bottom-10"> <div class="primary-border"> <p> <b> <form name=mail action="https://www.jproeng.com/EN/article/sendMail.jsp" method=post target=_blank> <div class="bshare-custom pull-left"> <div class="bsPromo bsPromo2"></div> <a title="Share with WeChat" class="bshare-weixin" href="javascript:void(0);"></a> <a title="Facebook" class="bshare-facebook"></a> <a title="Twitter" class="bshare-twitter"></a> <span class="BSHARE_COUNT bshare-share-count" style="float: none;">0</span> </div><script type="text/javascript" charset="utf-8" src="https://static.bshare.cn/b/buttonLite.js#style=-1&uuid=&pophcol=2&lang=zh"></script><script type="text/javascript" charset="utf-8" src="https://static.bshare.cn/b/bshareC0.js"></script> / <a href="#" id="collectArticle" class="shouc"></a> <span id="collectCount"></span> / <a onclick="mail.submit()" href="javascript:void(null)" class="tuij">Recommend</a> <input type="hidden" name="articleId" value="3674"> <form> </b> </p> <p><b>Add to citation manager</b> <span class="daochu"><a href="https://www.jproeng.com/EN/article/getTxtFile.do?fileType=EndNote&id=3674" id="ris_export">EndNote</a>|<a href="https://www.jproeng.com/EN/article/getTxtFile.do?fileType=Ris&id=3674">Ris</a>|<a id="bibtex_export" href="https://www.jproeng.com/EN/article/getTxtFile.do?fileType=BibTeX&id=3674">BibTeX</a></span> </p> <p><strong>URL:</strong> <a href="https://www.jproeng.com/EN/10.12034/j.issn.1009-606X.220135" class="txt_zhaiyao1">https://www.jproeng.com/EN/10.12034/j.issn.1009-606X.220135</a> </p> <p> <strong> </strong> <a href="https://www.jproeng.com/EN/Y2021/V21/I7/857" class="txt_zhaiyao1"> https://www.jproeng.com/EN/Y2021/V21/I7/857 </a> </p> </div> </div> </div> </div> </div> </div> <div class="panel panel-default"> <div class="panel-heading" role="tab" id="tubiao" onClick="xianshi(this)"> <h4 class="panel-title"> <a id="figure" class="collapsed"> Figures/Tables <span class="badge badge-info">13</span> </a> </h4> </div> <div id="collapseTwo" class="panel-collapse collapse" role="tabpanel" aria-labelledby="headingTwo" style="display: none;"> <div class="panel-body">  <div class="row figureCon"> <div class="col-lg-3 col-md-4 col-sm-6" style ="width:100%;"> <div class="thumbnail" style="background:#f8f8f8; border: 1px #eee solid; margin-top:20px;border-radius:15px; padding: 10px;"> <div class="img_div"> <a class="figureClass" href="#figureClass150" data-toggle="tooltip" data-placement="bottom" data-original-title="Fig.1 Treatment of DBP test device by electro-Fenton method"> <img src="https://www.jproeng.com/fileup/1009-606X/FIGURE/2021-21-7/Images/1009-606X-2021-21-7-857/D9206CCC-1167-40a6-8C01-E4776E10DACD-F002.jpg" style="height:auto;max-width:90%;margin:15px auto;" class="zhaiyao_img"> </a> </div> <div style="color:#666;font-size: 14px;padding: 0px;text-align: center;margin-bottom:15px;"> <b>Fig.1</b> Treatment of DBP test device by electro-Fenton method </div> <div style='display:none'> <div id='figureClass150' style='padding:10px; background:#fff;text-align:center;' class="img_div"> <img src="https://www.jproeng.com/fileup/1009-606X/FIGURE/2021-21-7/Images/1009-606X-2021-21-7-857/D9206CCC-1167-40a6-8C01-E4776E10DACD-F002.jpg" style="height:auto;max-width:90%;margin:15px auto;" class="zhaiyao_img"/> <p style="color:#666;font-size: 14px;padding: 0px;text-align: center;margin-bottom:15px;"><b>Fig.1</b> Treatment of DBP test device by electro-Fenton method</p> </div> </div> </div> </div> <div class="col-lg-3 col-md-4 col-sm-6" style ="width:100%;"> <div class="thumbnail" style="background:#f8f8f8; border: 1px #eee solid; margin-top:20px;border-radius:15px; padding: 10px;"> <div style="color:#666;font-size: 14px;padding: 0px;text-align: center;margin-top:15px;"> <b>Table 1</b> Experiment scheme </div> <a class='inline' href="#inline_content151" style="text-decoration: none;" data-toggle="tooltip" data-placement="bottom" data-original-title="Table 1 Experiment scheme"> <div class="table-responsive kongzhitab"> <table id="Table1"><thead><tr><th align="center" style="border-top:solid;border-bottom:solid;">Influence factor</th><th align="center" style="border-top:solid;border-bottom:solid;">Parameter setting</th></tr></thead><tbody><tr align="center"><td align="center">Initial pH</td><td align="center">2, 3, 5, 7, 9</td></tr><tr align="center"><td align="center">Current intensity/A</td><td align="center">0.05, 0.15, 0.20, 0.30</td></tr><tr align="center"><td align="center">Catalyst dosage/(g/L)</td><td align="center">0.25, 0.5, 1.0</td></tr><tr align="center"><td align="center" style="border-bottom:solid;">Oxygen flux/(L/min)</td><td align="center" style="border-bottom:solid;">0.1, 0.2, 0.3, 0.4</td></tr></tbody></table> </div> </a> <div style='display:none'> <div class="table-responsive kongzhitab" id='inline_content151' style='padding:10px; background:#fff;'> <p style="color:#666;font-size: 14px;padding: 0px;text-align: center;margin-top:15px;"><b>Table 1</b> Experiment scheme</p> <table id="Table1"><thead><tr><th align="center" style="border-top:solid;border-bottom:solid;">Influence factor</th><th align="center" style="border-top:solid;border-bottom:solid;">Parameter setting</th></tr></thead><tbody><tr align="center"><td align="center">Initial pH</td><td align="center">2, 3, 5, 7, 9</td></tr><tr align="center"><td align="center">Current intensity/A</td><td align="center">0.05, 0.15, 0.20, 0.30</td></tr><tr align="center"><td align="center">Catalyst dosage/(g/L)</td><td align="center">0.25, 0.5, 1.0</td></tr><tr align="center"><td align="center" style="border-bottom:solid;">Oxygen flux/(L/min)</td><td align="center" style="border-bottom:solid;">0.1, 0.2, 0.3, 0.4</td></tr></tbody></table> </div> </div> </div> </div> <div class="col-lg-3 col-md-4 col-sm-6" style ="width:100%;"> <div class="thumbnail" style="background:#f8f8f8; border: 1px #eee solid; margin-top:20px;border-radius:15px; padding: 10px;"> <div class="img_div"> <a class="figureClass" href="#figureClass152" data-toggle="tooltip" data-placement="bottom" data-original-title="Fig.2 The wide angle XRD patterns of catalysts with different Al contents"> <img src="https://www.jproeng.com/fileup/1009-606X/FIGURE/2021-21-7/Images/1009-606X-2021-21-7-857/D9206CCC-1167-40a6-8C01-E4776E10DACD-F003.jpg" style="height:auto;max-width:90%;margin:15px auto;" class="zhaiyao_img"> </a> </div> <div style="color:#666;font-size: 14px;padding: 0px;text-align: center;margin-bottom:15px;"> <b>Fig.2</b> The wide angle XRD patterns of catalysts with different Al contents </div> <div style='display:none'> <div id='figureClass152' style='padding:10px; background:#fff;text-align:center;' class="img_div"> <img src="https://www.jproeng.com/fileup/1009-606X/FIGURE/2021-21-7/Images/1009-606X-2021-21-7-857/D9206CCC-1167-40a6-8C01-E4776E10DACD-F003.jpg" style="height:auto;max-width:90%;margin:15px auto;" class="zhaiyao_img"/> <p style="color:#666;font-size: 14px;padding: 0px;text-align: center;margin-bottom:15px;"><b>Fig.2</b> The wide angle XRD patterns of catalysts with different Al contents</p> </div> </div> </div> </div> <div class="col-lg-3 col-md-4 col-sm-6" style ="width:100%;"> <div class="thumbnail" style="background:#f8f8f8; border: 1px #eee solid; margin-top:20px;border-radius:15px; padding: 10px;"> <div class="img_div"> <a class="figureClass" href="#figureClass153" data-toggle="tooltip" data-placement="bottom" data-original-title="Fig.3 FT-IR spectra of catalysts with different Al contents"> <img src="https://www.jproeng.com/fileup/1009-606X/FIGURE/2021-21-7/Images/1009-606X-2021-21-7-857/D9206CCC-1167-40a6-8C01-E4776E10DACD-F004.jpg" style="height:auto;max-width:90%;margin:15px auto;" class="zhaiyao_img"> </a> </div> <div style="color:#666;font-size: 14px;padding: 0px;text-align: center;margin-bottom:15px;"> <b>Fig.3</b> FT-IR spectra of catalysts with different Al contents </div> <div style='display:none'> <div id='figureClass153' style='padding:10px; background:#fff;text-align:center;' class="img_div"> <img src="https://www.jproeng.com/fileup/1009-606X/FIGURE/2021-21-7/Images/1009-606X-2021-21-7-857/D9206CCC-1167-40a6-8C01-E4776E10DACD-F004.jpg" style="height:auto;max-width:90%;margin:15px auto;" class="zhaiyao_img"/> <p style="color:#666;font-size: 14px;padding: 0px;text-align: center;margin-bottom:15px;"><b>Fig.3</b> FT-IR spectra of catalysts with different Al contents</p> </div> </div> </div> </div> <div class="col-lg-3 col-md-4 col-sm-6" style ="width:100%;"> <div class="thumbnail" style="background:#f8f8f8; border: 1px #eee solid; margin-top:20px;border-radius:15px; padding: 10px;"> <div style="color:#666;font-size: 14px;padding: 0px;text-align: center;margin-top:15px;"> <b>Table 2</b> BET parameters of the prepared catalysts </div> <a class='inline' href="#inline_content154" style="text-decoration: none;" data-toggle="tooltip" data-placement="bottom" data-original-title="Table 2 BET parameters of the prepared catalysts"> <div class="table-responsive kongzhitab"> <table id="Table2"><thead><tr><th align="center" style="border-top:solid;border-bottom:solid;">Type of catalyst</th><th align="center" style="border-top:solid;border-bottom:solid;">Specific surface area/(m<sup>2</sup>/g)</th><th align="center" style="border-top:solid;border-bottom:solid;">Pore volume/(cm<sup>3</sup>/g)</th><th align="center" style="border-top:solid;border-bottom:solid;">Average pore size/nm</th></tr></thead><tbody><tr align="center"><td align="center">M1</td><td align="center">1036.18</td><td align="center">0.83</td><td align="center">2.33</td></tr><tr align="center"><td align="center">M2</td><td align="center">778.30</td><td align="center">0.85</td><td align="center">3.49</td></tr><tr align="center"><td align="center">M3</td><td align="center">679.14</td><td align="center">1.00</td><td align="center">3.97</td></tr><tr align="center"><td align="center" style="border-bottom:solid;">M4</td><td align="center" style="border-bottom:solid;">491.65</td><td align="center" style="border-bottom:solid;">0.90</td><td align="center" style="border-bottom:solid;">5.02</td></tr></tbody></table> </div> </a> <div style='display:none'> <div class="table-responsive kongzhitab" id='inline_content154' style='padding:10px; background:#fff;'> <p style="color:#666;font-size: 14px;padding: 0px;text-align: center;margin-top:15px;"><b>Table 2</b> BET parameters of the prepared catalysts</p> <table id="Table2"><thead><tr><th align="center" style="border-top:solid;border-bottom:solid;">Type of catalyst</th><th align="center" style="border-top:solid;border-bottom:solid;">Specific surface area/(m<sup>2</sup>/g)</th><th align="center" style="border-top:solid;border-bottom:solid;">Pore volume/(cm<sup>3</sup>/g)</th><th align="center" style="border-top:solid;border-bottom:solid;">Average pore size/nm</th></tr></thead><tbody><tr align="center"><td align="center">M1</td><td align="center">1036.18</td><td align="center">0.83</td><td align="center">2.33</td></tr><tr align="center"><td align="center">M2</td><td align="center">778.30</td><td align="center">0.85</td><td align="center">3.49</td></tr><tr align="center"><td align="center">M3</td><td align="center">679.14</td><td align="center">1.00</td><td align="center">3.97</td></tr><tr align="center"><td align="center" style="border-bottom:solid;">M4</td><td align="center" style="border-bottom:solid;">491.65</td><td align="center" style="border-bottom:solid;">0.90</td><td align="center" style="border-bottom:solid;">5.02</td></tr></tbody></table> </div> </div> </div> </div> <div class="col-lg-3 col-md-4 col-sm-6" style ="width:100%;"> <div class="thumbnail" style="background:#f8f8f8; border: 1px #eee solid; margin-top:20px;border-radius:15px; padding: 10px;"> <div class="img_div"> <a class="figureClass" href="#figureClass155" data-toggle="tooltip" data-placement="bottom" data-original-title="Fig.4 Effect of catalysts with different Al contents on DBP degradation rate"> <img src="https://www.jproeng.com/fileup/1009-606X/FIGURE/2021-21-7/Images/1009-606X-2021-21-7-857/D9206CCC-1167-40a6-8C01-E4776E10DACD-F005.jpg" style="height:auto;max-width:90%;margin:15px auto;" class="zhaiyao_img"> </a> </div> <div style="color:#666;font-size: 14px;padding: 0px;text-align: center;margin-bottom:15px;"> <b>Fig.4</b> Effect of catalysts with different Al contents on DBP degradation rate </div> <div style='display:none'> <div id='figureClass155' style='padding:10px; background:#fff;text-align:center;' class="img_div"> <img src="https://www.jproeng.com/fileup/1009-606X/FIGURE/2021-21-7/Images/1009-606X-2021-21-7-857/D9206CCC-1167-40a6-8C01-E4776E10DACD-F005.jpg" style="height:auto;max-width:90%;margin:15px auto;" class="zhaiyao_img"/> <p style="color:#666;font-size: 14px;padding: 0px;text-align: center;margin-bottom:15px;"><b>Fig.4</b> Effect of catalysts with different Al contents on DBP degradation rate</p> </div> </div> </div> </div> <div class="col-lg-3 col-md-4 col-sm-6" style ="width:100%;"> <div class="thumbnail" style="background:#f8f8f8; border: 1px #eee solid; margin-top:20px;border-radius:15px; padding: 10px;"> <div class="img_div"> <a class="figureClass" href="#figureClass156" data-toggle="tooltip" data-placement="bottom" data-original-title="Fig.5 Effect of different initial pH on DBP degradation rate"> <img src="https://www.jproeng.com/fileup/1009-606X/FIGURE/2021-21-7/Images/1009-606X-2021-21-7-857/D9206CCC-1167-40a6-8C01-E4776E10DACD-F006.jpg" style="height:auto;max-width:90%;margin:15px auto;" class="zhaiyao_img"> </a> </div> <div style="color:#666;font-size: 14px;padding: 0px;text-align: center;margin-bottom:15px;"> <b>Fig.5</b> Effect of different initial pH on DBP degradation rate </div> <div style='display:none'> <div id='figureClass156' style='padding:10px; background:#fff;text-align:center;' class="img_div"> <img src="https://www.jproeng.com/fileup/1009-606X/FIGURE/2021-21-7/Images/1009-606X-2021-21-7-857/D9206CCC-1167-40a6-8C01-E4776E10DACD-F006.jpg" style="height:auto;max-width:90%;margin:15px auto;" class="zhaiyao_img"/> <p style="color:#666;font-size: 14px;padding: 0px;text-align: center;margin-bottom:15px;"><b>Fig.5</b> Effect of different initial pH on DBP degradation rate</p> </div> </div> </div> </div> <div class="col-lg-3 col-md-4 col-sm-6" style ="width:100%;"> <div class="thumbnail" style="background:#f8f8f8; border: 1px #eee solid; margin-top:20px;border-radius:15px; padding: 10px;"> <div class="img_div"> <a class="figureClass" href="#figureClass157" data-toggle="tooltip" data-placement="bottom" data-original-title="Fig.6 Effect of different current intensities on DBP degradation rate"> <img src="https://www.jproeng.com/fileup/1009-606X/FIGURE/2021-21-7/Images/1009-606X-2021-21-7-857/D9206CCC-1167-40a6-8C01-E4776E10DACD-F007.jpg" style="height:auto;max-width:90%;margin:15px auto;" class="zhaiyao_img"> </a> </div> <div style="color:#666;font-size: 14px;padding: 0px;text-align: center;margin-bottom:15px;"> <b>Fig.6</b> Effect of different current intensities on DBP degradation rate </div> <div style='display:none'> <div id='figureClass157' style='padding:10px; background:#fff;text-align:center;' class="img_div"> <img src="https://www.jproeng.com/fileup/1009-606X/FIGURE/2021-21-7/Images/1009-606X-2021-21-7-857/D9206CCC-1167-40a6-8C01-E4776E10DACD-F007.jpg" style="height:auto;max-width:90%;margin:15px auto;" class="zhaiyao_img"/> <p style="color:#666;font-size: 14px;padding: 0px;text-align: center;margin-bottom:15px;"><b>Fig.6</b> Effect of different current intensities on DBP degradation rate</p> </div> </div> </div> </div> <div class="col-lg-3 col-md-4 col-sm-6" style ="width:100%;"> <div class="thumbnail" style="background:#f8f8f8; border: 1px #eee solid; margin-top:20px;border-radius:15px; padding: 10px;"> <div class="img_div"> <a class="figureClass" href="#figureClass158" data-toggle="tooltip" data-placement="bottom" data-original-title="Fig.7 Effect of different catalyst dosages on DBP degradation rate"> <img src="https://www.jproeng.com/fileup/1009-606X/FIGURE/2021-21-7/Images/1009-606X-2021-21-7-857/D9206CCC-1167-40a6-8C01-E4776E10DACD-F008.jpg" style="height:auto;max-width:90%;margin:15px auto;" class="zhaiyao_img"> </a> </div> <div style="color:#666;font-size: 14px;padding: 0px;text-align: center;margin-bottom:15px;"> <b>Fig.7</b> Effect of different catalyst dosages on DBP degradation rate </div> <div style='display:none'> <div id='figureClass158' style='padding:10px; background:#fff;text-align:center;' class="img_div"> <img src="https://www.jproeng.com/fileup/1009-606X/FIGURE/2021-21-7/Images/1009-606X-2021-21-7-857/D9206CCC-1167-40a6-8C01-E4776E10DACD-F008.jpg" style="height:auto;max-width:90%;margin:15px auto;" class="zhaiyao_img"/> <p style="color:#666;font-size: 14px;padding: 0px;text-align: center;margin-bottom:15px;"><b>Fig.7</b> Effect of different catalyst dosages on DBP degradation rate</p> </div> </div> </div> </div> <div class="col-lg-3 col-md-4 col-sm-6" style ="width:100%;"> <div class="thumbnail" style="background:#f8f8f8; border: 1px #eee solid; margin-top:20px;border-radius:15px; padding: 10px;"> <div class="img_div"> <a class="figureClass" href="#figureClass159" data-toggle="tooltip" data-placement="bottom" data-original-title="Fig.8 Effect of different oxygen flux on DBP degradation rate"> <img src="https://www.jproeng.com/fileup/1009-606X/FIGURE/2021-21-7/Images/1009-606X-2021-21-7-857/D9206CCC-1167-40a6-8C01-E4776E10DACD-F009.jpg" style="height:auto;max-width:90%;margin:15px auto;" class="zhaiyao_img"> </a> </div> <div style="color:#666;font-size: 14px;padding: 0px;text-align: center;margin-bottom:15px;"> <b>Fig.8</b> Effect of different oxygen flux on DBP degradation rate </div> <div style='display:none'> <div id='figureClass159' style='padding:10px; background:#fff;text-align:center;' class="img_div"> <img src="https://www.jproeng.com/fileup/1009-606X/FIGURE/2021-21-7/Images/1009-606X-2021-21-7-857/D9206CCC-1167-40a6-8C01-E4776E10DACD-F009.jpg" style="height:auto;max-width:90%;margin:15px auto;" class="zhaiyao_img"/> <p style="color:#666;font-size: 14px;padding: 0px;text-align: center;margin-bottom:15px;"><b>Fig.8</b> Effect of different oxygen flux on DBP degradation rate</p> </div> </div> </div> </div> <div class="col-lg-3 col-md-4 col-sm-6" style ="width:100%;"> <div class="thumbnail" style="background:#f8f8f8; border: 1px #eee solid; margin-top:20px;border-radius:15px; padding: 10px;"> <div class="img_div"> <a class="figureClass" href="#figureClass160" data-toggle="tooltip" data-placement="bottom" data-original-title="Fig.9 The comparation of degradation effects of carbon blanket adsorption and electro-Fenton on DBP"> <img src="https://www.jproeng.com/fileup/1009-606X/FIGURE/2021-21-7/Images/1009-606X-2021-21-7-857/D9206CCC-1167-40a6-8C01-E4776E10DACD-F010.jpg" style="height:auto;max-width:90%;margin:15px auto;" class="zhaiyao_img"> </a> </div> <div style="color:#666;font-size: 14px;padding: 0px;text-align: center;margin-bottom:15px;"> <b>Fig.9</b> The comparation of degradation effects of carbon blanket adsorption and electro-Fenton on DBP </div> <div style='display:none'> <div id='figureClass160' style='padding:10px; background:#fff;text-align:center;' class="img_div"> <img src="https://www.jproeng.com/fileup/1009-606X/FIGURE/2021-21-7/Images/1009-606X-2021-21-7-857/D9206CCC-1167-40a6-8C01-E4776E10DACD-F010.jpg" style="height:auto;max-width:90%;margin:15px auto;" class="zhaiyao_img"/> <p style="color:#666;font-size: 14px;padding: 0px;text-align: center;margin-bottom:15px;"><b>Fig.9</b> The comparation of degradation effects of carbon blanket adsorption and electro-Fenton on DBP</p> </div> </div> </div> </div> <div class="col-lg-3 col-md-4 col-sm-6" style ="width:100%;"> <div class="thumbnail" style="background:#f8f8f8; border: 1px #eee solid; margin-top:20px;border-radius:15px; padding: 10px;"> <div class="img_div"> <a class="figureClass" href="#figureClass161" data-toggle="tooltip" data-placement="bottom" data-original-title="Fig.10 Effect of addition of ·OH trap on DBP removal rate of electro-Fenton system"> <img src="https://www.jproeng.com/fileup/1009-606X/FIGURE/2021-21-7/Images/1009-606X-2021-21-7-857/D9206CCC-1167-40a6-8C01-E4776E10DACD-F011.jpg" style="height:auto;max-width:90%;margin:15px auto;" class="zhaiyao_img"> </a> </div> <div style="color:#666;font-size: 14px;padding: 0px;text-align: center;margin-bottom:15px;"> <b>Fig.10</b> Effect of addition of ·OH trap on DBP removal rate of electro-Fenton system </div> <div style='display:none'> <div id='figureClass161' style='padding:10px; background:#fff;text-align:center;' class="img_div"> <img src="https://www.jproeng.com/fileup/1009-606X/FIGURE/2021-21-7/Images/1009-606X-2021-21-7-857/D9206CCC-1167-40a6-8C01-E4776E10DACD-F011.jpg" style="height:auto;max-width:90%;margin:15px auto;" class="zhaiyao_img"/> <p style="color:#666;font-size: 14px;padding: 0px;text-align: center;margin-bottom:15px;"><b>Fig.10</b> Effect of addition of ·OH trap on DBP removal rate of electro-Fenton system</p> </div> </div> </div> </div> <div class="col-lg-3 col-md-4 col-sm-6" style ="width:100%;"> <div class="thumbnail" style="background:#f8f8f8; border: 1px #eee solid; margin-top:20px;border-radius:15px; padding: 10px;"> <div class="img_div"> <a class="figureClass" href="#figureClass162" data-toggle="tooltip" data-placement="bottom" data-original-title="Fig.11 The comparation of degradation rates of DBP by different catalysts"> <img src="https://www.jproeng.com/fileup/1009-606X/FIGURE/2021-21-7/Images/1009-606X-2021-21-7-857/D9206CCC-1167-40a6-8C01-E4776E10DACD-F012.jpg" style="height:auto;max-width:90%;margin:15px auto;" class="zhaiyao_img"> </a> </div> <div style="color:#666;font-size: 14px;padding: 0px;text-align: center;margin-bottom:15px;"> <b>Fig.11</b> The comparation of degradation rates of DBP by different catalysts </div> <div style='display:none'> <div id='figureClass162' style='padding:10px; background:#fff;text-align:center;' class="img_div"> <img src="https://www.jproeng.com/fileup/1009-606X/FIGURE/2021-21-7/Images/1009-606X-2021-21-7-857/D9206CCC-1167-40a6-8C01-E4776E10DACD-F012.jpg" style="height:auto;max-width:90%;margin:15px auto;" class="zhaiyao_img"/> <p style="color:#666;font-size: 14px;padding: 0px;text-align: center;margin-bottom:15px;"><b>Fig.11</b> The comparation of degradation rates of DBP by different catalysts</p> </div> </div> </div> </div> </div>  </div> </div> </div> <div class="panel panel-default"> <div class="panel-heading" role="tab" id="cankaowenxian" onClick="xianshi(this)"> <h4 class="panel-title"> <a id="reference" class="collapsed"> References <span class="badge badge-info">25</span> </a> </h4> </div> <div id="collapseThree" class="panel-collapse collapse" role="tabpanel" aria-labelledby="headingThree" style="display: none;"> <div class="panel-body">  <table width="98%" border="0" align="center" cellpadding="0" cellspacing="8"> <tr> <td valign='top' align='right' style="padding-right:13px;">1</td> <td style="padding-bottom: 13px;"> <span class='magtech_ref_source'>黄艳, 卞战强, 田向红, 等. 环境中邻苯二甲酸酯类化合物降解技术研究进展 [J]. 环境与健康杂志, 2010, 27(7): 94-97.</span> </td> </tr> <tr> <td valign='top' align='right' style="padding-right:13px;"></td> <td style="padding-bottom: 13px;"> <span class='magtech_ref_source'>Huang Y, Bian Z Q, Tian X H, et al. 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Fe doped CeO<sub>2</sub>, nanosheets as Fenton-like heterogeneous catalysts for degradation of salicylic acid [J]. Chemical Engineering Journal, 2018, 333: 226-239.</span> </td> </tr> <tr> <td valign='top' align='right' style="padding-right:13px;">25</td> <td style="padding-bottom: 13px;"> <span class='magtech_ref_source'>Li K, Zhao Y Q, Song C S, et al. Magnetic ordered mesoporous Fe<sub>3</sub>O<sub>4</sub>/CeO<sub>2</sub> composites with synergy of adsorption and Fenton catalysis [J]. Applied Surface Science, 2017, 425: 526-534.</span> </td> </tr> </table>  </div> </div> </div> <div class="panel panel-default"> <div class="panel-heading" role="tab" id="xiangguanwenzhang" onClick="xianshi(this)"> <h4 class="panel-title"> <a id="relatedArticles" class="collapsed" > Related Articles <span class="badge badge-info">2</span> </a> </h4> </div> <div id="collapseFour" class="panel-collapse collapse" role="tabpanel" aria-labelledby="headingFour" style="display: none;"> <div class="panel-body"> <table width="100%" border="0" height='25'> <tr> <td width="30" valign='top' style="line-height:30px;">[1]</td> <td class="J_zhaiyao" style="line-height:30px;" valign='top'> Rong HOU Zhiqin CAO He ZHAO Jingheng NING Xiaofei MENG Shanshan SUN. <a href="https://www.jproeng.com/EN/10.12034/j.issn.1009-606X.219143" target="_blank" class="txt_zhaiyao"> Recovery of coagulated sludge and its electrochemical performance </a>[J]. Chin. J. 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Study on the catalytic degradation of dibutyl phthalate by ferric cerium bimetal in electric-Fenton system

电芬顿体系中铁铈双金属催化剂降解邻苯二甲酸二丁酯研究

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