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HERO ID
1322149
Reference Type
Journal Article
Title
Comparison and understanding of the different simulated sunlight photocatalytic activity between the saturated and monovacant Keggin unit functionalized titania materials
Author(s)
Ma, F; Shi, T; Gao, Jie; Chen, L; Guo, Wan; Guo, Y; Wang, S
Year
2012
Is Peer Reviewed?
Yes
Journal
Colloids and Surfaces A: Physicochemical and Engineering Aspects
ISSN:
0927-7757
Publisher
Elsevier B.V.
Location
AMSTERDAM
Volume
401
Page Numbers
116-125
Language
English
DOI
10.1016/j.colsurfa.2012.03.036
Web of Science Id
WOS:000303953900015
Abstract
The saturated and monovacant Keggin unit functionalized
titania materials, H3PW12O40/TiO2 and K7PW11O39/TiO2, were prepared by one step sol-gel co-
condensation followed by solvothermal treatment. The structure, optical absorption properties,
morphology, and porosity of the materials were well characterized. Subsequently, their simulated
sunlight photocatalytic activity was evaluated by the degradation and mineralization of dye
rhodamine B (RB) and endocrine-disrupting chemical diethyl phthalate (DEP). Special attention was
paid to provide direct evidences for the explanation of the different photoexcited electron-hole
pair separation rates of the H3PW12O40/TiO2, K7PW11O39/TiO2, and pure TiO2 by the
photoelectrochemical experiment: simultaneously, the target active species yielded in the
K7PW11O39/TiO2- and H3PW12O40/TiO2-catalyzed DEP degradation systems were also investigated by
the free radical and hole scavenging experiment. Accordingly, reasons for the photocatalytic
activity difference between the K7PW11O39/TiO2 and H3PW12O40/TiO2 as well as pure TiO2 were
revealed. (C) 2012 Elsevier B.V. All rights reserved.
Keywords
Polyoxometalates; Titania; Composite material; Synergistic photocatalytic effect; Simulated sunlight photocatalysis
Tags
IRIS
•
Diethyl phthalate (DEP)
Database searches
Initial Litsearch
Web of Science
Merged reference set
Aug 2013 update
Web of Science
Jan 2020 update
Web of Science
Excluded: No Primary Data on Health Effects
Not chemical specific
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