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author:

Huang, Haowei (Huang, Haowei.) [1] | Zhao, Jiwu (Zhao, Jiwu.) [2] | Du, Yijie (Du, Yijie.) [3] | Zhou, Chen (Zhou, Chen.) [4] | Zhang, Menglong (Zhang, Menglong.) [5] | Wang, Zhuan (Wang, Zhuan.) [6] | Weng, Yuxiang (Weng, Yuxiang.) [7] | Long, Jinlin (Long, Jinlin.) [8] (Scholars:龙金林) | Hofkens, Johan (Hofkens, Johan.) [9] | Steele, Julian A. (Steele, Julian A..) [10] | Roeffaers, Maarten B. J. (Roeffaers, Maarten B. J..) [11]

Indexed by:

SCIE

Abstract:

Metal halide perovskites with direct band gap and strong light absorption are promising materials for harvesting solar energy; however, their relatively narrow band gap limits their redox ability when used as a photocatalyst. Adding a second semiconductor component with the appropriate band structure offsets can generate a Z-scheme photocatalytic system, taking full advantage of the perovskite's intrinsic properties. In this work, we develop a direct Z-scheme photocatalyst based on formamidinium lead bromide and bismuth tungstate (FAPbBr(3)/Bi2WO6) with strong redox ability for artificial solar-to-chemical energy conversion. With desirable band offsets and strong joint redox potential, the dual photocatalyst is shown to form a semicoherent heterointerface. Ultrafast transient infrared absorption studies employing selective excitation reveal synergetic photocarrier dynamics and demonstrate Z-scheme charge transfer mechanisms. Under simulated solar irradiation, a large driving force photoredox reaction (similar to 2.57 eV) of CO2 reduction coupled with benzyl alcohol oxidation to benzaldehyde is achieved on the Z-scheme FAPbBr(3)/Bi2WO6 photocatalyst, harnessing the full synergetic potential of the combined system.

Keyword:

benzyl alcohol oxidation CO2 reduction direct Z-scheme metal halide perovskite photocatalysis semicoherent interface

Community:

  • [ 1 ] [Huang, Haowei]Katholieke Univ Leuven, Dept Microbial & Mol Syst, cMACS, B-3001 Leuven, Belgium
  • [ 2 ] [Steele, Julian A.]Katholieke Univ Leuven, Dept Microbial & Mol Syst, cMACS, B-3001 Leuven, Belgium
  • [ 3 ] [Roeffaers, Maarten B. J.]Katholieke Univ Leuven, Dept Microbial & Mol Syst, cMACS, B-3001 Leuven, Belgium
  • [ 4 ] [Zhao, Jiwu]Fuzhou Univ, State Key Lab Photocatalysis Energy & Environm, Fuzhou 350002, Peoples R China
  • [ 5 ] [Long, Jinlin]Fuzhou Univ, State Key Lab Photocatalysis Energy & Environm, Fuzhou 350002, Peoples R China
  • [ 6 ] [Du, Yijie]Chinese Acad Sci, Inst Phys, Lab Soft Matter & Biophys, Beijing 100190, Peoples R China
  • [ 7 ] [Wang, Zhuan]Chinese Acad Sci, Inst Phys, Lab Soft Matter & Biophys, Beijing 100190, Peoples R China
  • [ 8 ] [Weng, Yuxiang]Chinese Acad Sci, Inst Phys, Lab Soft Matter & Biophys, Beijing 100190, Peoples R China
  • [ 9 ] [Zhou, Chen]Fuzhou Univ, Coll Chem Engn, Fuzhou 350002, Peoples R China
  • [ 10 ] [Zhang, Menglong]South China Normal Univ, Inst Semicond, Guangzhou 510631, Peoples R China
  • [ 11 ] [Hofkens, Johan]Katholieke Univ Leuven, Dept Chem, B-3001 Heverlee, Belgium
  • [ 12 ] [Hofkens, Johan]Max Planck Inst Polymer Res, D-55128 Mainz, Germany

Reprint 's Address:

  • 龙金林

    [Steele, Julian A.]Katholieke Univ Leuven, Dept Microbial & Mol Syst, cMACS, B-3001 Leuven, Belgium;;[Roeffaers, Maarten B. J.]Katholieke Univ Leuven, Dept Microbial & Mol Syst, cMACS, B-3001 Leuven, Belgium;;[Long, Jinlin]Fuzhou Univ, State Key Lab Photocatalysis Energy & Environm, Fuzhou 350002, Peoples R China

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Source :

ACS NANO

ISSN: 1936-0851

Year: 2020

Issue: 12

Volume: 14

Page: 16689-16697

1 5 . 8 8 1

JCR@2020

1 5 . 8 0 0

JCR@2023

ESI Discipline: MATERIALS SCIENCE;

ESI HC Threshold:196

JCR Journal Grade:1

CAS Journal Grade:1

Cited Count:

WoS CC Cited Count: 191

SCOPUS Cited Count: 182

ESI Highly Cited Papers on the List: 0 Unfold All

WanFang Cited Count:

Chinese Cited Count:

30 Days PV: 2

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