Photocatalytic Reduction of CO2 over CdxZn1-xS Photocatalysts

被引：2

作者：

Bai, Xue-feng ^{[1
,2
]}

Li, Xian-da ^{[2
]}

机构：

[1] Heilongjiang Acad Sci, Inst Petrochem, Harbin 150040, Peoples R China

[2] Heilongjiang Univ, Sch Chem & Mat Sci, Harbin 150080, Peoples R China

来源：

PROGRESS IN ENVIRONMENTAL SCIENCE AND ENGINEERING, PTS 1-4 | 2013年 / 610-613卷

关键词：

CdxZn1-xS; photocatalysis; CO2; reduction;

D O I：

10.4028/www.scientific.net/AMR.610-613.319

中图分类号：

TE [石油、天然气工业]; TK [能源与动力工程];

学科分类号：

0807 ; 0820 ;

摘要：

A series of CdxZn1-xS (x=0.1 similar to 0.9) composite photocatalysts were prepared by coprecipitation method. The above-prepared photocatalysts were characterized by X-ray diffraction (XRD), UV-Vis diffusive reflectance spectroscopy (DRS),surface photovoltage spectroscopy (SPS). It was shown from XRD that CdxZn1-xS solid solution semiconductors were of hexagonal phase in agreement with pure CdS. The DRS and SPS results showed that the band gap energy gradually reduced with the increasing of x value in CdxZn1-xS, and when x = 0.7, the Cd0.3Zn0.3S photocatalyst had the strongest surface photovoltage. It was found from photocatalytic reduction of CO2 that the highest HCOOH production rate of 342.64 mu mol/(g.h) over Cd0.7Zn0.3S photocatalyst among a series of CdxZn1-xS photocatalysts were obtained under 250 W high pressure mercury lamp.

引用

页码：319 / +

页数：2

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