Engineering Zn1-xCdxS/CdS Heterostructures with Enhanced Photocatalytic Activity

被引：76
作者：
Li, Kui [1 ]
Chen, Rong [1 ]
Li, Shun-Li [1 ]
Xie, Shuai-Lei [1 ]
Dong, Long-Zhang [1 ]
Kang, Zhen-Hui [2 ]
Bao, Jian-Chun [1 ]
Lan, Ya-Qian [1 ]
机构：
[1] Nanjing Normal Univ, Sch Chem & Mat Sci, Jiangsu Key Lab Biofunct Mat, Nanjing 210023, Jiangsu, Peoples R China
[2] Soochow Univ, Inst Funct Nano & Soft Mat FUNSOM, Jiangsu Key Lab Carbon Based Funct Mat & Devices, Suzhou 215123, Peoples R China
来源：
ACS APPLIED MATERIALS & INTERFACES | 2016年 / 8卷 / 23期
关键词：
Zn1-xCdxS/CdS; heterostructure; CdS quantum dots; in situ synthesis; photocatalytic activity; VISIBLE-LIGHT IRRADIATION; HYDROGEN EVOLUTION; H-2; EVOLUTION; EMITTING-DIODES; SOLID-SOLUTIONS; QUANTUM DOTS; EDGE SITES; EFFICIENT; GRAPHENE; NANOSHEETS;
D O I：
10.1021/acsami.6b02765
中图分类号：
TB3 [工程材料学];
学科分类号：
0805 ; 080502 ;
摘要：
Various porous Zn1-xCdxS/CdS heteorostructures were achieved via in situ synthesis method with organic amines as the templates. Because of the larger radius of Cd2+ than that of Zn2+, CdS quantum dots are formed and distributed uniformly in the network of Zn1-xCdxS. The Zn1-xCdxS/CdS heterostructure with small Cd content (10 at%) derived from ethylenediamine shows very high H-2-evolution rate of 667.5 mu mol/h per 5 mg photocatalyst under visible light (lambda >= 420 nm) with an apparent quantum efficiency of 50.1% per 5 mg at 420 nm. Moreover, this Zn1-xCdxS/CdS heterostructure photocatalyst also shows an excellent photocatalytic stability over 100 h.
引用
收藏
页码：14535 / 14541
页数：7
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