2D PtS nanorectangles/g-C3N4nanosheets with a metal sulfide-support interaction effect for high-efficiency photocatalytic H2evolution - Details

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Abstract：

Cocatalyst　design　is　a　key　approach　to　acquire　high　solar-energy　conversion　efficiency　for　photocatalytic　hydrogen　evolution.　Here　a　new　in　situ　vapor-phase　(ISVP)　growth　method　is　developed　to　construct　the　cocatalyst　of　2D　PtS　nanorectangles　(a　length　of　∼7　nm,　a　width　of　∼5　nm)　on　the　surface　of　g-C3N4　nanosheets.　The　2D　PtS　nanorectangles/g-C3N4　nanosheets　(PtS/CN)　show　an　unusual　metal　sulfide-support　interaction　(MSSI),　which　is　evidenced　by　atomic　resolution　HAADF-STEM,　synchrotron-based　GIXRD,　XPS　and　DFT　calculations.　The　effect　of　MSSI　contributes　to　the　optimization　of　geometrical　structure　and　energy-band　structure,　acceleration　of　charge　transfer,　and　reduction　of　hydrogen　adsorption　free　energy　of　PtS/CN,　thus　yielding　excellent　stability　and　an　ultrahigh　photocatalytic　H2　evolution　rate　of　1072.6　μmol　h-1　(an　apparent　quantum　efficiency　of　45.7%　at　420　nm),　up　to　13.3　and　1532.3　times　by　contrast　with　that　of　Pt　nanoparticles/g-C3N4　nanosheets　and　g-C3N4　nanosheets,　respectively.　This　work　will　provide　a　new　platform　for　designing　high-efficiency　photocatalysts　for　sunlight-driven　hydrogen　generation.　©　The　Royal　Society　of　Chemistry.

Keyword：

Band structure Charge transfer Conversion efficiency Design for testability Free energy Gas adsorption Hydrogen production Nanosheets Platinum compounds Solar energy Structural optimization Sulfur compounds

Author Community：

[ 1 ] [Lin, Bo]School of Optoelectronic Science and Engineering, University of Electronic Science and Technology of China, Chengdu; 611731, China
[ 2 ] [Zhou, Yao]School of Physical and Mathematical Sciences, Nanyang Technological University, 637371, Singapore
[ 3 ] [Xu, Baorong]XJTU-Oxford International Joint Laboratory for Catalysis, School of Chemical Engineering and Technology, Xi'An Jiaotong University, Xi'an; 710049, China
[ 4 ] [Zhu, Chao]School of Materials Science and Engineering, Nanyang Technological University, 639798, Singapore
[ 5 ] [Tang, Wu]School of Materials and Energy, University of Electronic Science and Technology of China, Chengdu; 611731, China
[ 6 ] [Niu, Yingchun]State Key Laboratory of Heavy Oil Processing, China University of Petroleum-Beijing, Beijing; 102249, China
[ 7 ] [Di, Jun]School of Materials Science and Engineering, Nanyang Technological University, 639798, Singapore
[ 8 ] [Song, Pin]School of Materials Science and Engineering, Nanyang Technological University, 639798, Singapore
[ 9 ] [Zhou, Jiadong]School of Materials Science and Engineering, Nanyang Technological University, 639798, Singapore
[ 10 ] [Luo, Xiao]School of Optoelectronic Science and Engineering, University of Electronic Science and Technology of China, Chengdu; 611731, China
[ 11 ] [Kang, Lixing]School of Materials Science and Engineering, Nanyang Technological University, 639798, Singapore
[ 12 ] [Duan, Ruihuan]School of Materials Science and Engineering, Nanyang Technological University, 639798, Singapore
[ 13 ] [Fu, Qundong]School of Materials Science and Engineering, Nanyang Technological University, 639798, Singapore
[ 14 ] [Liu, Haishi]School of Optoelectronic Science and Engineering, University of Electronic Science and Technology of China, Chengdu; 611731, China
[ 15 ] [Jin, Ronghua]XJTU-Oxford International Joint Laboratory for Catalysis, School of Chemical Engineering and Technology, Xi'An Jiaotong University, Xi'an; 710049, China
[ 16 ] [Xue, Chao]State Centre for International Cooperation on Designer Low-carbon and Environmental Materials, School of Materials Science and Engineering, Zhengzhou University, Zhengzhou; 450001, China
[ 17 ] [Chen, Qiang]School of Chemical Engineering and Technology, Sun Yat-sen University (Zhuhai Campus), Zhuhai; 519082, China
[ 18 ] [Yang, Guidong]XJTU-Oxford International Joint Laboratory for Catalysis, School of Chemical Engineering and Technology, Xi'An Jiaotong University, Xi'an; 710049, China
[ 19 ] [Varga, Kalman]Department of Physics and Astronomy, Vanderbilt University, Nashville; TN; 37235, United States
[ 20 ] [Xu, Quan]State Key Laboratory of Heavy Oil Processing, China University of Petroleum-Beijing, Beijing; 102249, China
[ 21 ] [Li, Yonghui]Department of Physics, Tianjin Key Laboratory of Low Dimensional Materials Physics and Preparing Technology, School of Science, Tianjin University, Tianjin; 300350, China
[ 22 ] [Liu, Zheng]School of Materials Science and Engineering, Nanyang Technological University, 639798, Singapore
[ 23 ] [Liu, Fucai]School of Optoelectronic Science and Engineering, University of Electronic Science and Technology of China, Chengdu; 611731, China

Reprint Author's Address：

[Liu, Fucai]School of Optoelectronic Science and Engineering, University of Electronic Science and Technology of China, Chengdu; 611731, China;;

Email：

fucailiu@uestc.edu.cnemailz.liu@ntu.edu.sgemailxuquan@cup.edu.cnemailyonghui.li@tju.edu.cn) Liu, Zheng(z.liu@ntu.edu.sgemailxuquan@cup.edu.cnemailyonghui.li@tju.edu.cn) Xu, Quan(xuquan@cup.edu.cnemailyonghui.li@tju.edu.cn) Li, Yonghui(yonghui.li@tju.edu.cn

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Source ：

Materials Horizons

ISSN： 2051-6347

Year： 2021

Issue： 2

Volume： 8

Page： 612-618

1 3 . 2 6 6

JCR@2020

ESI Discipline： MATERIALS SCIENCE;

ESI HC Threshold：36

CAS Journal Grade：1

Cited Count：

WoS CC Cited Count： 12

SCOPUS Cited Count： 34

ESI Highly Cited Papers on the List： 0 Unfold All

WanFang Cited Count：

Chinese Cited Count：

30 Days PV： 7

Affiliated Colleges：

化学工程与技术学院化学工程与工艺系

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