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author:

Yang, Pengju (Yang, Pengju.) [1] | Wang, Long (Wang, Long.) [2] | Zhuzhang, Hangyu (Zhuzhang, Hangyu.) [3] | Wang, Ruirui (Wang, Ruirui.) [4] | Titirici, Maria-Magdalena (Titirici, Maria-Magdalena.) [5] | Wang, Xinchen (Wang, Xinchen.) [6] (Scholars:王心晨)

Indexed by:

EI Scopus SCIE

Abstract:

Photocatalytic water splitting necessitates robust cocatalysts to accelerate the oxygen evolution reaction (OER). However, most OER cocatalysts are based on noble metal oxides. Besides, the loose interface between semiconductor and cocatalyst results in inefficient charge transfer. The fabrication of photocatalysts with integrated light-harvesting and catalytic centers for OER is therefore desired. Herein, we provide a photocarving strategy to create nitrogen vacancies (NVs) on polymeric carbon nitride (PCN). It is confirmed that the embedded NVs can function as active sites to catalyze OER, while promoting the transfer of the photogenerated charge for OER. As a result, PCN-NVs without any extra noble-metal cocatalyst assistance exhibit an enhanced oxygen evolution rate compared with the pristine PCN. Additionally, the PCN obtained from other precursors can also be engineered by this photocarving method, while promoting oxygen photosynthesis. This work provides an avenue to design light-transducers with combined light-harvesting and catalytic configurations for oxygen synthesis chemistry.

Keyword:

Carbon nitride Nitrogen vacancy Oxygen production Photocatalysis

Community:

  • [ 1 ] [Yang, Pengju]Fuzhou Univ, Coll Chem, State Key Lab Photocatalysis Energy & Environm, Fuzhou 350116, Fujian, Peoples R China
  • [ 2 ] [Wang, Long]Fuzhou Univ, Coll Chem, State Key Lab Photocatalysis Energy & Environm, Fuzhou 350116, Fujian, Peoples R China
  • [ 3 ] [Zhuzhang, Hangyu]Fuzhou Univ, Coll Chem, State Key Lab Photocatalysis Energy & Environm, Fuzhou 350116, Fujian, Peoples R China
  • [ 4 ] [Wang, Ruirui]Fuzhou Univ, Coll Chem, State Key Lab Photocatalysis Energy & Environm, Fuzhou 350116, Fujian, Peoples R China
  • [ 5 ] [Wang, Xinchen]Fuzhou Univ, Coll Chem, State Key Lab Photocatalysis Energy & Environm, Fuzhou 350116, Fujian, Peoples R China
  • [ 6 ] [Yang, Pengju]Shanxi Univ, Sch Chem & Chem Engn, Taiyuan 030006, Shanxi, Peoples R China
  • [ 7 ] [Titirici, Maria-Magdalena]Queen Mary Univ London, Sch Engn & Mat Sci, London E1 4NS, England
  • [ 8 ] [Titirici, Maria-Magdalena]Imperial Coll London, Dept Chem Engn, South Kensington Campus, London SE7 2AZ, England

Reprint 's Address:

  • 王心晨

    [Wang, Xinchen]Fuzhou Univ, Coll Chem, State Key Lab Photocatalysis Energy & Environm, Fuzhou 350116, Fujian, Peoples R China

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Source :

APPLIED CATALYSIS B-ENVIRONMENTAL

ISSN: 0926-3373

Year: 2019

Volume: 256

1 6 . 6 8 3

JCR@2019

2 0 . 3 0 0

JCR@2023

ESI Discipline: CHEMISTRY;

ESI HC Threshold:184

JCR Journal Grade:1

CAS Journal Grade:1

Cited Count:

WoS CC Cited Count: 97

SCOPUS Cited Count: 92

ESI Highly Cited Papers on the List: 0 Unfold All

WanFang Cited Count:

Chinese Cited Count:

30 Days PV: 2

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