Novel hierarchical architectures of Sb2WO6: Template-free hydrothermal synthesis and photocatalytic reduction property for azo compound - Details

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Abstract：

Novel　hierarchical　architectures　of　Sb2WO6　are　synthesized　successfully　by　a　simple　hydrothermal　process　without　any　organic　solvent　or　surfactant.　The　physicochemical　properties　of　the　as-prepared　products　are　characterized　in　detail.　Interestingly,　the　morphologies　of　Sb　2WO6　could　be　selectively　controlled　by　adjusting　pH　values　of　the　reactive　solutions.　The　tuft-like,　cockscomb-like,　and　flower-like　hierarchical　architectures　are　obtained　at　pH　=　1,　3,　and　5,　respectively.　Based　on　the　time-dependent　experimental　results,　a　possible　growth　mechanism　is　proposed,　which　reasonably　follows　a　synergy　interaction　of　reaction-crystallization　and　dissolution-recrystallization　processes.　The　photocatalytic　activities　of　the　novel　hierarchical　Sb2WO6　are　evaluated　by　the　decomposition　of　azo　compounds　for　the　first　time.　Results　show　that　the　as-prepared　samples　exhibit　the　excellent　photocatalytic　activity　and　universality　for　the　reduction　of　azo　compounds.　The　conversion　of　methyl　orange　reaches　98　%　after　140　min　of　light　irradiation.　HPLC-MS　indicates　that　the　selectivity　of　4-aminobenzene　sulfonic　acid　is　over　99　%.　©　2013　Springer　Science+Business　Media　Dordrecht.

Keyword：

Azo compound; Hierarchical architecture; Photo-reduction property; Sb2WO6

Community：

[ 1 ] [Bi, J.]State Key Laboratory Breeding Base of Photocatalysis, Research Institute of Photocatalysis, Fuzhou University, Fuzhou 350002 Fujian, China
[ 2 ] [Bi, J.]Department of Environmental Science and Engineering, Fuzhou University, Fuzhou 350108 Fujian, China
[ 3 ] [Liu, Y.]Department of Environmental Science and Engineering, Fuzhou University, Fuzhou 350108 Fujian, China
[ 4 ] [Liang, S.]State Key Laboratory Breeding Base of Photocatalysis, Research Institute of Photocatalysis, Fuzhou University, Fuzhou 350002 Fujian, China
[ 5 ] [Liang, S.]Department of Environmental Science and Engineering, Fuzhou University, Fuzhou 350108 Fujian, China
[ 6 ] [Wu, W.]State Key Laboratory Breeding Base of Photocatalysis, Research Institute of Photocatalysis, Fuzhou University, Fuzhou 350002 Fujian, China
[ 7 ] [Yuan, R.]State Key Laboratory Breeding Base of Photocatalysis, Research Institute of Photocatalysis, Fuzhou University, Fuzhou 350002 Fujian, China
[ 8 ] [Wu, L.]State Key Laboratory Breeding Base of Photocatalysis, Research Institute of Photocatalysis, Fuzhou University, Fuzhou 350002 Fujian, China

Reprint 's Address：

[Wu, L.]State Key Laboratory Breeding Base of Photocatalysis, Research Institute of Photocatalysis, Fuzhou University, Fuzhou 350002 Fujian, China

Email：

wuling@fzu.edu.cn

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Source ：

Journal of Nanoparticle Research

ISSN： 1388-0764

Year： 2013

Issue： 6

Volume： 15

2 . 2 7 8

JCR@2013

2 . 1 0 0

JCR@2023

JCR Journal Grade：1

CAS Journal Grade：2

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ESI Highly Cited Papers on the List： 0 Unfold All

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30 Days PV： 0

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