硅烷偶联剂改性的二氧化钛光催化降解气相苯

催化学报 , 2006, 27(12): 1045-1047.

硅烷偶联剂改性的二氧化钛光催化降解气相苯

钟俊波 ^1, , 皮展 ^2, , 林涛 ^3, , 龚茂初 ^4, , 王健礼 ^5, , 刘志敏 ^6, , 陈耀强 ^7,

1.四川大学化学学院,四川,成都,610064

2.四川大学化学学院,四川,成都,610064

3.四川大学化学学院,四川,成都,610064

4.四川大学化学学院,四川,成都,610064

5.四川大学化学学院,四川,成都,610064

6.四川大学化学学院,四川,成都,610064

7.四川大学化学学院,四川,成都,610064

关键词：二氧化钛 , 硅烷偶联剂 , 改性 , 苯 , 气相光催化氧化

Gas-Phase Photocatalytic Oxidation of Benzene over Titanium Dioxide Modified by Silane Coupling Agent

Keywords： titanium dioxide , silane coupling agent , modification , benzene , gas-phase photocatalytic oxidation

用硅烷偶联剂KH-570对二氧化钛光催化剂进行了改性,制备了一种新型光催化剂.以苯作为模拟气体,在静态反应装置中考察了该催化剂的光催化性能.结果表明,KH-570能显著提高二氧化钛对气相苯的光催化降解性能,其转化率是纯二氧化钛的2.5倍.采用红外光谱和X射线光电子能谱对催化剂进行了表征.

The photocatalytic activity of TiO2 for the decomposition of gaseous benzene in a batch reactor can be greatly improved by modifying TiO2 with 3-(trimethoxysilyl)propylmethacrylate. The photocatalyst prepared was characterized by Fourier transform infrared spectroscopy and X-ray photoelectron spectroscopy (XPS). The XPS spectrum shows that the binding energy of Ti 2p for the modified TiO2 shifted to a low value. The modified TiO2 has a photocatalytic activity 2.5 times that of pure TiO2.

参考文献

[1]	Choi H;Stathatos E;Dionysiou DD .Sol-gel preparation of mesoporous photocatalytic TiO2 films and TiO2/Al2O3 composite membranes for environmental applications[J].Applied Catalysis, B. Environmental: An International Journal Devoted to Catalytic Science and Its Applications,2006(1/2):60-67.
[2]	Lewandowski M.;Ollis DF. .Halide acid pretreatments of photocatalysts for oxidation of aromatic air contaminants: rate enhancement, rate inhibition, and a thermodynamic rationale[J].Journal of Catalysis,2003(1):38-46.
[3]	Ao C H;Lee S C;Yu J C .[J].Journal of Photochemistry and Photobiology A:Chemistry,2003,156(1-3):171.
[4]	Zuo G-M;Cheng Zh-X;Xu M;Qiu X-Q .[J].Journal of Photochemistry and Photobiology A:Chemistry,2003,161(01):51.
[5]	Ameen M M;Raupp G B .[J].Journal of Catalysis,1999,184(01):112.
[6]	张前程,张凤宝,张国亮,张晓萍.苯在TiO2上的气相光催化反应性能[J].中国环境科学,2003(06):661-664.
[7]	Sauer M L;Hale M A;Ollis D F .[J].Journal of Photochemistry and Photobiology A:Chemistry,1995,88(2-3):169.
[8]	d'Hennezel O;Pichat P;Ollis D F .[J].Journal of Photochemistry and Photobiology A:Chemistry,1998,118(03):197.
[9]	张前程,张凤宝,张国亮.苯在TiO2上的气相光催化氧化反应历程[J].催化学报,2004(01):39-43.
[10]	王娟芸,钟俊波,龚茂初,王敏,陈耀强.TiO2/Sr2CeO4上苯气相光催化氧化[J].催化学报,2005(03):171-172.
[11]	Kim TK;Lee MN;Lee SH;Park YC;Jung CK;Boo JH .Development of surface coating technology of TiO2 powder and improvement of photocatalytic activity by surface modification[J].Thin Solid Films: An International Journal on the Science and Technology of Thin and Thick Films,2005(1/2):171-177.
[12]	余家国,赵修建,赵青南,杜金成.TiO2光催化薄膜的XPS研究[J].材料研究学报,2000(02):203-209.

上一张下一张

计量

下载量()
访问量()

作者相关

文章评分

您的评分：
1

0%
2

0%
3

0%
4

0%
5

0%

材料期刊网