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Author Li, Jingjing ♦ Yu, Caiyun ♦ Zheng, Changcheng ♦ Etogo, Atangana ♦ Xie, Yunlong ♦ Zhong, Yijun ♦ Hu, Yong
Source United States Department of Energy Office of Scientific and Technical Information
Content type Text
Language English
Subject Keyword MATERIALS SCIENCE ♦ COMPARATIVE EVALUATIONS ♦ ELECTROCHEMISTRY ♦ HOLES ♦ INTERFACES ♦ ION EXCHANGE ♦ IRRADIATION ♦ METHYL ORANGE ♦ NANOSTRUCTURES ♦ PHOTOCATALYSIS ♦ RADICALS ♦ SILVER BROMIDES ♦ SILVER CHLORIDES ♦ SILVER IODIDES ♦ SILVER TUNGSTATES ♦ TEMPERATURE RANGE 0273-0400 K ♦ VISIBLE RADIATION ♦ WATER
Abstract Highlights: • Ag{sub 2}WO{sub 4}/AgX hybrid nanorods were prepared by a facile in-situ anion exchange reaction. • Ag{sub 2}WO{sub 4} nanorods and different X{sup −} ions were reacted in water at room temperature. • The hybrids possess significantly enhanced photoelectrochemical properties. • Ag{sub 2}WO{sub 4}/AgBr hybrids exhibit the highest photocatalytic activity among three samples. • The active species tests were also investigated to confirm photocatalytic mechanism. - Abstract: In this work, we demonstrated a general strategy for the preparation of a series of uniform Ag{sub 2}WO{sub 4}/AgX (X = Cl, Br, I) hybrid nanorods by a facile in-situ anion exchange reaction occurring at room temperature between pregrown Ag{sub 2}WO{sub 4} nanorods and different X{sup −} ions in water. Compared with Ag{sub 2}WO{sub 4} nanorods, further investigation has revealed that the as-prepared hybrid nanorods possess significantly enhanced photocurrent response and photocatalytic activity in degrading methyl orange (MO) under visible-light irradiation. In particular, the Ag{sub 2}WO{sub 4}/AgBr hybrid nanorods exhibit the highest photocatalytic activity among the three kinds of samples. The active species tests indicate that superoxide anion radicals and photogenerated holes are responsible for the enhanced photocatalytic performance.
ISSN 00255408
Educational Use Research
Learning Resource Type Article
Publisher Date 2015-01-15
Publisher Place United States
Journal Materials Research Bulletin
Volume Number 61


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