文献类型：期刊文献

中文题名：酞菁改性的介孔TiO_2的制备及其可见光光催化活性

英文题名：Preparation of Phthalocyanine-Modified Mesoporous Titania and Its Visible-Light Photocatalytic Activity

作者：李晓佩[1];陈锋[1];张金龙[1]

机构：[1]华东理工大学精细化工研究所,结构可控先进功能材料及其制备教育部重点实验室,上海200237

年份：2007

卷号：28

期号：3

起止页码：229

中文期刊名：催化学报

外文期刊名：CHINESE JOURNAL OF CATALYSIS

收录：CSTPCD;;Scopus;WOS:【SCI-EXPANDED(收录号:WOS:000245616800010)】；北大核心:【北大核心2004】；CSCD:【CSCD2011_2012】；

基金：国家自然科学基金(20407007);上海市浦江人才计划(05PJ14033);上海市自然科学基金(06ZR14025).

语种：中文

中文关键词：四羧基铜酞菁;敏化;二氧化钛;光催化;可见光;荧光素;降解

外文关键词：copper （II）-tetracarboxyphthalocyanine; sensitization; titania; photocatalysis; visible light; fluorescein; degradation

摘要：利用软模板法制备了介孔TiO2,小角XRD和BJH孔径分布测定显示所制备的介孔TiO2具有良好的孔道有序性,平均孔径为4.75nm.通过四羧基铜酞菁(CuPcTc)表面吸附改性得到了CuPcTc敏化的介孔TiO2(CuPcTc-TiO2)可见光光催化剂.CuPcTc-TiO2光催化剂在可见光(λ>550nm)照射下显示了良好的光催化降解荧光素的能力,并且在CuPcTc吸附量(质量分数)为4%时,光催化剂具有最高的可见光光催化活性.在降解荧光素时,CuPcTc-TiO2显示出比CuPcTc敏化的P25(CuPcTc-P25)催化剂更高的可见光光催化活性.
Mesoporous titania was successfully prepared by the soft-template method. The low angle XRD pattern and BJH pore distribution indicated that the pores of mesoporous titania were well ordered and had a average pore diameter of 4.75 nm. Cu （II）-tetracarboxyphthalocyanine （CuPcTc）-sensitized mesoporous titania （CuPcTc-TiO2） photocatalyst samples were prepared by adsorption of CuPcTc on the surface of mesoporous titania. Under the irradiation of visible light （λ〉550 nm）, CuPcTc-TiO2 showed high photocatalytic activity for the degradation of fluorescein and had optimum visible-light activity when the CuPcTc adsorption amount was 4% in mass fraction. In addition, CuPcTc-TiO2 exhibited higher visible-light photocatalytic activity than CuPcTc-sensitized P25 （CuPcTc-P25） for the degradation of fluorescein.