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Title: Facile formation of Ag{sub 2}WO{sub 4}/AgX (X = Cl, Br, I) hybrid nanorods with enhanced visible-light-driven photoelectrochemical properties

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.

Authors:
;  [1];  [2]; ; ;  [1];  [1]
  1. Key Laboratory of the Ministry of Education for Advanced Catalysis Materials, Institute of Physical Chemistry, Zhejiang Normal University, Jinhua 321004 (China)
  2. Mathematics and Physics Centre, Xi’an Jiaotong-Liverpool University, Suzhou 215123 (China)
Publication Date:
OSTI Identifier:
22420770
Resource Type:
Journal Article
Resource Relation:
Journal Name: Materials Research Bulletin; Journal Volume: 61; Other Information: Copyright (c) 2014 Elsevier Science B.V., Amsterdam, The Netherlands, All rights reserved.; Country of input: International Atomic Energy Agency (IAEA)
Country of Publication:
United States
Language:
English
Subject:
36 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

Citation Formats

Li, Jingjing, Yu, Caiyun, Zheng, Changcheng, Etogo, Atangana, Xie, Yunlong, Zhong, Yijun, and Hu, Yong, E-mail: yonghu@zjnu.edu.cn. Facile formation of Ag{sub 2}WO{sub 4}/AgX (X = Cl, Br, I) hybrid nanorods with enhanced visible-light-driven photoelectrochemical properties. United States: N. p., 2015. Web. doi:10.1016/J.MATERRESBULL.2014.10.018.
Li, Jingjing, Yu, Caiyun, Zheng, Changcheng, Etogo, Atangana, Xie, Yunlong, Zhong, Yijun, & Hu, Yong, E-mail: yonghu@zjnu.edu.cn. Facile formation of Ag{sub 2}WO{sub 4}/AgX (X = Cl, Br, I) hybrid nanorods with enhanced visible-light-driven photoelectrochemical properties. United States. doi:10.1016/J.MATERRESBULL.2014.10.018.
Li, Jingjing, Yu, Caiyun, Zheng, Changcheng, Etogo, Atangana, Xie, Yunlong, Zhong, Yijun, and Hu, Yong, E-mail: yonghu@zjnu.edu.cn. Thu . "Facile formation of Ag{sub 2}WO{sub 4}/AgX (X = Cl, Br, I) hybrid nanorods with enhanced visible-light-driven photoelectrochemical properties". United States. doi:10.1016/J.MATERRESBULL.2014.10.018.
@article{osti_22420770,
title = {Facile formation of Ag{sub 2}WO{sub 4}/AgX (X = Cl, Br, I) hybrid nanorods with enhanced visible-light-driven photoelectrochemical properties},
author = {Li, Jingjing and Yu, Caiyun and Zheng, Changcheng and Etogo, Atangana and Xie, Yunlong and Zhong, Yijun and Hu, Yong, E-mail: yonghu@zjnu.edu.cn},
abstractNote = {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.},
doi = {10.1016/J.MATERRESBULL.2014.10.018},
journal = {Materials Research Bulletin},
number = ,
volume = 61,
place = {United States},
year = {Thu Jan 15 00:00:00 EST 2015},
month = {Thu Jan 15 00:00:00 EST 2015}
}