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Electronic Semiconductor–Support Interaction—A Novel Effect in Semiconductor Photocatalysis
Author(s) -
Weiß Harald,
Fernandez Asuncion,
Kisch Horst
Publication year - 2001
Publication title -
angewandte chemie international edition
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 5.831
H-Index - 550
eISSN - 1521-3773
pISSN - 1433-7851
DOI - 10.1002/1521-3773(20011015)40:20<3825::aid-anie3825>3.0.co;2-d
Subject(s) - photocatalysis , semiconductor , band gap , plot (graphics) , semiconductor materials , materials science , nanotechnology , computer science , optoelectronics , chemistry , mathematics , catalysis , organic chemistry , statistics
The bandgap of CdS increases with decreasing coverage when CdS is supported on silica (see plot of E bg against CdS concentration c ). Likewise the photocatalytic activity of these heterogeneous photocatalysts increases, as illustrated by the relative rate ( v rel ) of an organic addition reaction. CdS (A, v rel =1), CdS‐50/SiO 2 (B), CdS‐30/SiO 2 (C), and CdS‐12/SiO 2 (D).