Microwave Synthesis of ZnxCd1-xS Nanorods and Their Photocatalytic Activity under Visible Light

被引:154
作者
Li, Wenjuan [1 ]
Li, Danzhen [1 ]
Zhang, Wenjuan [1 ]
Hu, Yin [1 ]
He, Yunhui [1 ]
Fu, Xianzhi [1 ]
机构
[1] Fuzhou Univ, Res Inst Photocatalysis, State Key Lab Breeding Base Photocatalysis, Fuzhou 350002, Peoples R China
基金
中国国家自然科学基金;
关键词
OPTICAL-PROPERTIES; SOLID-SOLUTION; H-2; EVOLUTION; SEMICONDUCTOR PHOTOCATALYSIS; EFFICIENT DEGRADATION; NANOCRYSTALS; IRRADIATION; FILMS; NANOPARTICLES; WATER;
D O I
10.1021/jp9066247
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
ZnxCd1-xS nanorods were successfully synthesized by microwave method. Characterized by transmission electron microscopy, ZnxCd1-xS samples were composed of a large quantity of homogeneous rods with diameter about 10 nm. The photocatalytic degradation of methyl orange (MO) in the aqueous phase under visible light irradiation (420 nm < lambda < 800 nm) was taken as a model reaction. The conversion of MO degradation using Zn0.28Cd0.72S as the photocatalyst was up to 96% after 6 It of irradiation. The separation and identification of degradation products were measured by liquid chromatography mass spectroscopy (LC-MS). After 6 h of irradiation, the intensity of the main absorption peak of MO (m/z = 304) descended in mass spectrum view, while some new peaks of degradation products showed LIP. From these results of LC-MS analysis, it can be concluded that it was really a photocatalytic degradation process.
引用
收藏
页码:2154 / 2159
页数:6
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