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›› 2011, Vol. 11 ›› Issue (2): 336-342.

• 材料工程专栏 • 上一篇    下一篇

N和Al共掺杂TiO2粉体的固相合成及可见光降解性能

蒋天智 刘少友 唐文华 龙步明   

  1. 凯里学院应用化学研究所 凯里学院应用化学研究所 凯里学院应用化学研究所 广西大学化学化工学院
  • 收稿日期:2011-01-17 修回日期:2011-03-22 出版日期:2011-04-20 发布日期:2011-04-20
  • 通讯作者: 蒋天智

Synthesis of N and Al Co-doped TiO2 Particles with Visible Light Degradation Property via Solid State Reaction Route

JIANG Tian-zhi LIU Shao-you FENG Qing-ge LONG Bu-ming，   

  1. Institute of Applied Chemistry, Kaili University Institute of Applied Chemistry, Kaili University Institute of Applied Chemistry, Kaili College College of Chemistry and Chemical Engineering, Guangxi University
  • Received:2011-01-17 Revised:2011-03-22 Online:2011-04-20 Published:2011-04-20
  • Contact: JIANG Tian-zhi

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被引次数

19

摘要： 采用固相反应法合成了N与Al共掺杂TiO2 (N-Al-TiO2)粉体材料，利用XRD, UV-Vis, N2吸附及XPS等对其进行了物相织构表征，并研究了可见光辐照下催化剂对中性红的降解性能. 结果表明，N和Al均进入TiO2晶格或晶格间隙，材料表面不仅存在替位取代形成的N?Ti?O与Ti?O?Al键，且存在间隙掺杂形成的Ti?N?O与Ti?O?N键. 与纯TiO2相比，N-Al-TiO2对中性红显示出很高的可见光降解活性，2 h内中性红的降解率为95.8%，降解过程服从一级反应动力学规律.

关键词: 氮与铝共掺杂, 二氧化钛, 固相反应, 中性红, 可见光降解

Abstract: N and Al co-doped TiO2 (N-Al-TiO2) particles were successfully synthesized via a solid-state reaction route. Their properties were characterized by XRD, N2 adsorption-desorption, UV-Vis and XPS. The photodegradation of neutral red (NR) on the N-Al-TiO2 material irradiated with visible light was investigated. The XPS results clearly show that both N and Al have been incorporated into the lattice of TiO2. The N?Ti?O and Ti?O?Al bonds formed by lattice substitution and Ti?N?O and Ti?O?N bonds configured by interstitial doping on the N-Al-TiO2 material surface are presented. Compared with pure TiO2, the photodegradation properties of NR on the N-Al-TiO2 shows excellent visible light catalytic properties, the degradation rate of NR is 95.8% in 2 h, and the degradation process of NR follows the principle of pseudo-first-order reaction.

Key words: N and Al co-doping, titanium dioxide, solid state reaction, neutral red, visible light degradation

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