Rationally Designed Copper-Modified Polymeric Carbon Nitride as a Photocathode for Solar Water Splitting

Zhonghao Wang, Bingjun Jin, Guojun Zou, Kan Zhang, Xun Hu, Jong Hyeok Park

Research output: Contribution to journalArticlepeer-review

28 Citations (Scopus)

Abstract

Polymeric carbon nitride has been considered to be an active photocathode for catalyzing the generation of H 2 through water splitting. However, the application of this material in photoelectrochemical cells remains a challenge owing to the intrinsically sluggish kinetics of charge separation. Herein, a facile salt-melt method is developed for fabricating Cu-modified polymeric carbon nitride as an effective photocathode material for solar water splitting. Various characterization data confirm that Cu-modified polymeric carbon nitride contains both free CuCl, derived from precursors, and coordinated Cu species incorporated into the polymeric carbon nitride, which can generate type-II heterojunctions. This special heterojunction energy structure contributes to a significantly enhanced photocurrent density for hydrogen evolution. The proposed strategy for synthesizing the Cu-modified polymeric carbon nitride can stimulate research for the development of highly efficient visible-light-active photocathodes.

Original languageEnglish
Pages (from-to)866-872
Number of pages7
JournalChemSusChem
Volume12
Issue number4
DOIs
Publication statusPublished - 2019 Feb 21

Bibliographical note

Publisher Copyright:
© 2019 Wiley-VCH Verlag GmbH & Co. KGaA, Weinheim

All Science Journal Classification (ASJC) codes

  • Environmental Chemistry
  • General Chemical Engineering
  • General Materials Science
  • General Energy

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