Facile synthesis of polyoxometalate-thionine composite via direct precipitation method and its photocatalytic activity for degradation of rhodamine B under visible light

被引：17

作者：

You, Yanglijun ^{[1
]}

Gao, Shuiying ^{[1
]}

Yang, Zhen ^{[1
]}

Cao, Minna ^{[1
]}

Cao, Rong ^{[1
]}

机构：

[1] Chinese Acad Sci, Fujian Inst Res Struct Matter, State Key Lab Struct Chem, Fuzhou 350002, Fujian, Peoples R China

来源：

JOURNAL OF COLLOID AND INTERFACE SCIENCE | 2012年 / 365卷 / 01期

关键词：

Polyoxometalate; Direct precipitation method; Photocatalysis; Visible light; SELECTIVE PHOTOOXIDATION; AQUEOUS-SOLUTIONS; DYE POLLUTANTS; TIO2; OXIDATION; IRRADIATION; MECHANISM; WATER; DECOMPOSITION; SURFACE;

D O I：

10.1016/j.jcis.2011.09.017

中图分类号：

O64 [物理化学（理论化学）、化学物理学];

学科分类号：

070304 ; 081704 ;

摘要：

(TH)(3)PW(12) (TH = thionine, PW(12) = PW(12)O(40)(3-)) composite was prepared by direct precipitation of TH and PW12. The (TH)(3)PW(12) was characterized via UV-vis spectrum, FT-IR, SEM, and BET surface area. PW(12) was intact during the precipitation process. The composite has a bar-like shape and relatively large surface area (Langmuir surface of (TH)(3)PW(12) was 31.59 m(2) g(-1), BET surface was 20.26 m(2) g(-1)). Using the material as the photocatalyst, rhodamine B (RhB) was efficiently bleached and mineralized under visible light irradiation lambda > 420 nm). The kinetics of the photodecomposition follow the first-order reaction. The (TH)(3)PW(12) catalyst can be easily separated from the reaction system and has good stability for reuse. (C) 2011 Elsevier Inc. All rights reserved.

引用

页码：198 / 203

页数：6

共 52 条

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