Ternary Pt/SnOx/TiO2 photocatalysts for hydrogen production: Consequence of Pt sites for synergy of dual co-catalysts - Details

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Abstract：

A　variety　of　ternary　nanoheterostructures　composed　of　Pt　nanoparticles　(NPs),　SnOx　species,　and　anatase　TiO2　are　designed　elaborately　to　explore　the　effect　of　interfacial　electron　transfer　on　photocatalytic　H2　evolution　from　a　biofuel-water　solution.　Among　numerous　factors　controlling　the　H2　evolution,　the　significance　of　Pt　sites　for　the　H2　evolution　is　highlighted　by　tuning　the　loading　procedure　of　Pt　NPs　and　SnOx　species　over　TiO2.　A　synergistic　enhancement　of　H2　evolution　can　be　achieved　over　the　Pt/SnOx/TiO2　heterostructures　formed　by　anchoring　Pt　NPs　at　atomically-isolated　Sn-oxo　sites,　whereas　the　Pt/TiO2/SnO　x　counterparts　prepared　by　grafting　single-site　Sn-oxo　species　on　Pt/TiO2　show　a　marked　decrease　in　the　rate　of　H2　evolution.　The　characterization　results　clearly　reveal　that　the　synergy　of　Pt　NPs　and　SnOx　species　originates　from　the　vectorial　electron　transfer　of　TiO2　→　SnOx　→　Pt　occurring　on　the　former,　while　the　latter　results　from　the　competitive　electron　transfer　from　TiO　2　to　SnOx　and　to　Pt　NPs.　©　2014　the　Partner　Organisations.

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[ 1 ] [Gu, Q.]Research Institute of Photocatalysis, State Key Laboratory of Photocatalysis on Energy and Environment, Fuzhou University, Fuzhou 350002, China
[ 2 ] [Long, J.]Research Institute of Photocatalysis, State Key Laboratory of Photocatalysis on Energy and Environment, Fuzhou University, Fuzhou 350002, China
[ 3 ] [Zhuang, H.]Research Institute of Photocatalysis, State Key Laboratory of Photocatalysis on Energy and Environment, Fuzhou University, Fuzhou 350002, China
[ 4 ] [Zhang, C.]Research Institute of Photocatalysis, State Key Laboratory of Photocatalysis on Energy and Environment, Fuzhou University, Fuzhou 350002, China
[ 5 ] [Zhou, Y.]Research Institute of Photocatalysis, State Key Laboratory of Photocatalysis on Energy and Environment, Fuzhou University, Fuzhou 350002, China
[ 6 ] [Wang, X.]Research Institute of Photocatalysis, State Key Laboratory of Photocatalysis on Energy and Environment, Fuzhou University, Fuzhou 350002, China

Reprint 's Address：

[Long, J.]Research Institute of Photocatalysis, State Key Laboratory of Photocatalysis on Energy and Environment, Fuzhou University, Fuzhou 350002, China

Email：

jllong@fzu.edu.cn

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Physical Chemistry Chemical Physics

ISSN： 1463-9076

Year： 2014

Issue： 24

Volume： 16

Page： 12521-12534

4 . 4 9 3

JCR@2014

2 . 9 0 0

JCR@2023

ESI HC Threshold：268

JCR Journal Grade：1

CAS Journal Grade：2

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WoS CC Cited Count：

SCOPUS Cited Count： 66

ESI Highly Cited Papers on the List： 0 Unfold All

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Chinese Cited Count：

30 Days PV： 1

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