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

doi:10.1002/cssc.201802495

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

Department of Chemical and Biomolecular Engineering

Research output: Contribution to journal › Article › peer-review

15 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 language	English
Pages (from-to)	866-872
Number of pages	7
Journal	ChemSusChem
Volume	12
Issue number	4
DOIs	https://doi.org/10.1002/cssc.201802495
Publication status	Published - 2019 Feb 21

Bibliographical note

Funding Information:
X. Hu acknowledges the support by the Recruitment Program of Global Young Experts (Thousand Youth Talents Plan). J. H. Park acknowledges the support by the NRF of Korea Grant funded by the Ministry of Science, ICT & Future Planning (2014M3A7B4051747, 2016M3D3A1A01913254, 2015M1A2A2074663).

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

All Science Journal Classification (ASJC) codes

Environmental Chemistry
Chemical Engineering(all)
Materials Science(all)
Energy(all)

UN SDGs

This output contributes to the following Sustainable Development Goal(s)

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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. ",

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AU - Hu, Xun

AU - Park, Jong Hyeok

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N2 - 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.

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

Abstract

Bibliographical note

All Science Journal Classification (ASJC) codes

UN SDGs

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