Preparation and Photocatalytic Activity of Porphyrin-Sensitized TiO2 Microspheres

被引：0

作者：

Cai Jinhua ^{[1
,2
]}

Huang Jinwang ^{[1
]}

Ye Yuanjian ^{[1
]}

Yu Hancheng ^{[1
]}

Ji Liangnian ^{[1
]}

机构：

[1] Sun Yat Sen Univ, Sch Chem & Chem Engn, MOE Key Lab Bioinorgan & Synthet Chem, Guangzhou 510275, Guangdong, Peoples R China

[2] Hechi Univ, Dept Chem & Life Sci, Yizhou 546300, Guangxi, Peoples R China

来源：

CHINESE JOURNAL OF CATALYSIS | 2009年 / 30卷 / 05期

关键词：

porphyrin; titanium dioxide; microsphere; photosensitization; visible light; alpha-terpinene; MESOPOROUS TITANIA; LIGHT; DEGRADATION; DIOXIDE; WATER; AG;

D O I：

暂无

中图分类号：

O69 [应用化学];

学科分类号：

081704 ;

摘要：

Porphyrin-sensitized TiO2 microspheres (APTCPP-MPS-TiO2) were prepared by a sol-gel method using 5-(4-allyloxy)phenyl-10,15,20-tri(4-chlorophenyl)porphyrin (APTCPP) as a sensitizer. UV-vis diffuse reflectance spectroscopy, thermal gravimetry, X-ray diffraction, X-ray photoelectron spectroscopy, and scanning electron microscopy were used to characterize the APTCPP-MPS-TiO2. The photooxidation of alpha-terpinene was employed as the model reaction to evaluate the photocatalytic activity of APTCPP-MPS-TiO2 microspheres under visible light. The X-ray diffraction results indicated that APTCPP-MPS-TiO2 was composed of the anatase crystal phase and the morphology of the composite materials was spheriform with size of 0.7-1 mu m. The APTCPP-MPS-TiO2 microspheres had high catalytic activity, and the sensitization of APTCPP can enhance visible-light catalytic activity of TiO2. The main photooxidation product of alpha-terpinene was ascaridole.

引用

页码：440 / 446

页数：7

共 32 条

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