[1]李英柳,李爱莲,吴凤丽.Fe3+ 改性TiO2 光催化降解甲醛废水试验研究[J].常州大学学报(自然科学版),2006,(02):19-21.
　LI Ying- liu,LI Ai- lian,WU Feng- li.Experimental Study of Photocatalytic Oxidation of Formaldehyde over TiO2 modified with Fe3+[J].Journal of Changzhou University(Natural Science Edition),2006,(02):19-21.
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Fe3+ 改性TiO2 光催化降解甲醛废水试验研究()
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常州大学学报(自然科学版)[ISSN:2095-0411/CN:32-1822/N]

卷:
期数:
2006年02期
页码:
19-21
栏目:
出版日期:
2006-06-25

文章信息/Info

Title:
Experimental Study of Photocatalytic Oxidation of Formaldehyde over TiO2 modified with Fe3+
作者:
李英柳1;  李爱莲2 ;  吴凤丽2
1.江苏工业学院环境与安全工程系, 江苏 常州 213164; 2.江苏工业学院; 3.解放军理工大学, 江苏 南京
Author(s):
LI Ying- liu1;  LI Ai- lian2;  WU Feng- li3
1. Department of Env ironmental and Safety Eng ineering, Jiangsu Polytechnic University, Changzhou 213164, China; 2. Jiangsu Polytechnic University ; 3. P. L. A. of Science and Technology U niversity, Nanjing, China
关键词:
T iO2 改性;  光催化降解;  甲醛;  失活;  再生
Keywords:
TiO2 modifying;  photocatalyt ic ox idat ion;  formaldehy de;  deact ivation;  regeneration
分类号:
X 7 ??
文献标志码:
A
摘要:
采用溶胶凝胶法和掺杂子Fe3+ 修饰技术, 制备高活性光催化剂TiO2 用以降解苯酚废水。试验考察了催化剂制备条件如 R 值、Fe3+ 含量、焙烧温度和焙烧时间等因素对催化剂活性的影响, 结果表明T iO2 焙烧温度为650 ℃?? , R = 10, Fe3+ 质量分 数为3.5%, 焙烧时间为2 h 时, 催化剂的活性最高。将在此条件下制得的TiO2 光催化降解甲醛废水, 试验发现催化剂长期使 用后有失活现象, 经再生处理后催化活性得到较大程度的恢复。
Abstract:
The photocatalyst was prepared w ith sol- gel method and modified with Fe3+ . It was used to decompose formaldehyde. Some preparation conditions that have effects on titanium dioxides activity have been studied. It indicated that the photocatalyst performed a relative higher activity and longer lifet ime w hen R = 50 and the doping Fe 3+ was at 3.5w t% and it was sintered at 650℃?? for 2 hours. T iO2 was found deact ivat ion after long- term use in ox idat ion of formaldehyde. The act ivated photocatalyst was treated in NaOH solution and its activity could almost completely recover.

参考文献/References:

[1] 张颖, 李朝辉, 杨凌霄, 等?? 过渡金属离子调变对光催化氧化 的影响[J] ?? 环境科学研究, 2000, 13 ( 6) : 40- 42.
[2] 杨建军, 李冬旭, 张治军, 等?? Pt / Fe2O3/ TiO2 的制备、表征 及光催化活性[J] ?? 真空科学与技术, 2001, 21 ( 4) : 277 - 230.
[3] 席北斗, 刘洪亮?? 高效负载型光催化剂制备及其加铂修饰技术 [J] ?? 环境科学, 2002, 23 ( 1) : 66- 69.
[4] Ren- De Sun, Akira Nakajima, T oshiya Wat anabe, et al. Decom position of Gas - Phase Oct amethyltrisiloxane on TiO2 T hin Film Phtocat alysis- Cat alyt ic Act ivity, Deact ivat ion, and Regenerat ion [J] . Journal of Phot ochemist ry and Phot obiology A: Chemist ry, 2003, ( 154) : 203- 209

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备注/Memo

备注/Memo:
作者简介: 李英柳( 1977- ) , 女, 湖北京山人, 硕士。
更新日期/Last Update: 2006-06-25