Jump to main content
Jump to site search

Issue 9, 2010
Previous Article Next Article

Preparation and enhanced visible-light photocatalytic H2-production activity of CdS quantum dots-sensitized Zn1−xCdxS solid solution

Author affiliations

Abstract

CdS quantum dot (QDs)-sensitized Zn1−xCdxS solid solutions were successfully prepared by a simple cation exchange using hydrothermally synthesized ZnS nanoparticles (NPs) and Cd(NO3)2 as precursors. The prepared samples show especially high visible-light photocatalytic H2-production activity from aqueous solutions containing Na2SO3 and Na2S as sacrificial reagents even without a Pt co-catalyst. It was found that this high visible-light photocatalytic H2-production activity is attributed to the quantum size effect of CdS; the presence of CdS QDs alters the energy levels of the conduction and valence bands in the coupled semiconductor system, which favors the electron transfer and enhances photoactivity.

Graphical abstract: Preparation and enhanced visible-light photocatalytic H2-production activity of CdS quantum dots-sensitized Zn1−xCdxS solid solution

Back to tab navigation

Supplementary files

Article information


Submitted
20 Jun 2010
Accepted
12 Jul 2010
First published
03 Aug 2010

Green Chem., 2010,12, 1611-1614
Article type
Paper

Preparation and enhanced visible-light photocatalytic H2-production activity of CdS quantum dots-sensitized Zn1−xCdxS solid solution

J. Yu, J. Zhang and M. Jaroniec, Green Chem., 2010, 12, 1611
DOI: 10.1039/C0GC00236D

Social activity

Search articles by author

Spotlight

Advertisements