Preparation and characterization of novel visible light sensitive Pt/BiVO4 photocatalysts

被引：15

作者：

Ge Lei ^{[1
]}

机构：

[1] China Univ Petr, Dept Mat Sci & Engn, Beijing 102249, Peoples R China

来源：

JOURNAL OF INORGANIC MATERIALS | 2008年 / 23卷 / 03期

关键词：

bismuth vanadate; photocatalyst; visible light; platinum tetrachloride;

D O I：

10.3724/SP.J.1077.2008.00449

中图分类号：

TQ174 [陶瓷工业]; TB3 [工程材料学];

学科分类号：

0805 ; 080502 ;

摘要：

Novel Pt/BiVO4 photocatalysts were prepared by impregnation method using Bi(NO3)(3), NH4VO3 and H2PtCl6 as starting materials. The obtained samples were characterized by XRD, SEM, XPS and DRS. The XRD patterns indicate that the Pt/BiVO4 photocatalysts consist of monoclinic phase. The DRS measurements show that the visible light absorption of the composite samples is greatly increased, and the absorption edge shifts to red light region. The photocatalytic activities were evaluated by degradation of methyl orange under visible light irradiation (lambda >400nm). The photocatalytic activity of the Pt/BiVO4 composite sample is significautly enhanced, which is probably due to the photo-sensitivity of PtCl4 particles.

引用

页码：449 / 453

页数：5

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