Journal
ACS APPLIED MATERIALS & INTERFACES
Volume 8, Issue 23, Pages 14535-14541Publisher
AMER CHEMICAL SOC
DOI: 10.1021/acsami.6b02765
Keywords
Zn1-xCdxS/CdS; heterostructure; CdS quantum dots; in situ synthesis; photocatalytic activity
Funding
- NSFC [21371099, 21471080, 21471081]
- NSF of Jiangsu Province of China [BK20130043, BK20141445]
- Natural Science Research of Jiangsu Higher Education Institutions of China [13KJB150021]
- Priority Academic Program Development of Jiangsu Higher Education Institutions
- Foundation of Jiangsu Collaborative Innovation Center of Biomedical Functional Materials
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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.
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