欢迎访问过程工程学报, 今天是

›› 2009, Vol. 9 ›› Issue (6): 1090-1094.

• 反应与分离 • 上一篇    下一篇

合成碳羟基磷灰石对水中苯酚的吸附

唐文清 曾荣英 冯泳兰 李小明 曾光明 余润兰   

  1. 衡阳师范学院化学与材料科学系 衡阳师范学院化学与材料科学系 衡阳师范学院化学与材料科学系 湖南大学环境科学与工程学院 湖南大学环境科学与工程学院 中南大学资源加工与生物工程学院
  • 收稿日期:2009-03-31 修回日期:2009-06-15 出版日期:2009-12-20 发布日期:2009-12-20
  • 通讯作者: 唐文清

Adsorption of Phenol from Aqueous Solution with Carbonate Hydroxylapatite

TANG Wen-qing ZENG Rong-ying FENG Yong-lan LI Xiao-ming ZENG Guang-ming YU Run-lan   

  1. Department of Chemistry and Materials Science, Hengyang Normal University Department of Chemistry and Materials Science, Hengyang Normal University Department of Chemistry and Materials Science, Hengyang Normal University College of Environmental Science and Engineering, Hunan University College of Environmental Science and Engineering, Hunan University School of Minerals Processing and Bio-engineering; Central South University
  • Received:2009-03-31 Revised:2009-06-15 Online:2009-12-20 Published:2009-12-20
  • Contact: TANG Wen-qing

PDF

摘要： 利用废弃蛋壳为原料、尿素为添加剂，合成了碳羟基磷灰石(CHAP)，用于吸附水中苯酚. 利用红外光谱、扫描电镜、X射线能谱测试技术对CHAP样品表面化学进行了表征，同时考察了环境pH值、吸附时间、苯酚初始浓度及温度对苯酚吸附的影响. 结果表明，在酸性(pH=3~5)和碱性(pH=9~10)条件下，CHAP对苯酚的吸附效果较好，吸附过程符合Langmuir和Freundlich等温式，同时也符合准二级动力学模型.

关键词: 碳羟基磷灰石, 苯酚, 吸附特性

Abstract: The adsorption of phenol from aqueous solution by carbonate hydroxylapatite (CHAP) synthesized using abandoned eggshell and urea was studied, and CHAP characterized by FT-IR, SEM and EDS. Influential factors of adsorption performance were investigated, such as pH value, adsorption period, phenol initial concentration and temperature from aqueous solution. The results showed that adsorption capacity for phenol was better at pH=3~5 and pH=9~10 from aqueous solution. The equilibrium adsorption data could be described by the Langmuir and Freundlich isotherm models. The first-order and pseudo-second-order kinetic models provided the better correlation of the used experimental data.

Key words: carbonate hydroxylapatite, phenol, adsorption characteristics

中图分类号: