Construction of Low-Cost Z-Scheme Heterojunction Cu2O/PCN-250 Photocatalysts Simultaneously for the Enhanced Photoreduction of CO2 to Alcohols and Photooxidation of Water

Research output: Journal Publications and ReviewsRGC 21 - Publication in refereed journalpeer-review

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Author(s)

  • Miao-Miao Yang
  • Jia-Min Cao
  • Guang-Dong Qi
  • Xian-Yu Shen
  • Guan-Yu Yan
  • Ye Wang
  • Wen-Wen Dong
  • Jun Zhao
  • Dong-Sheng Li

Detail(s)

Original languageEnglish
Pages (from-to)15963-15970
Journal / PublicationInorganic Chemistry
Volume62
Issue number39
Online published19 Sept 2023
Publication statusPublished - 2 Oct 2023

Abstract

Solar-driven high-efficiency conversion of CO2 with water vapor into high-value-added alcohols is a promising approach for reducing CO2 emissions and achieving carbon neutrality. However, the rapid recombination of photogenerated carriers and low CO2 adsorption capacity of photocatalysts are usually the factors that limit their applicability. Herein, a series of low-cost Z-scheme heterostructures Cu2O/PCN-250-x are constructed by in situ growth of ultrasmall Cu2O nanoparticles on PCN-250. A systematic investigation revealed that there is a strong interaction between Cu2O nanoparticles and PCN-250. The resulting Cu2O/PCN-250-2 exhibits excellent photogenerated carrier separation efficiency and CO2 adsorption capacity, which dramatically promote the conversion of CO2 into alcohols. Notably, the total yield of 268 μmol gcat-1 for the production of CH3OH and CH3H2OH is superior to that of isolated PCN-250 and Cu2O. This study provides a new perspective for the design of a Cu2O nanoparticle/metal-organic framework Z-scheme heterojunction for the reduction of CO2 to alcohols with water vapor. © 2023 American Chemical Society.

Research Area(s)

Citation Format(s)

Construction of Low-Cost Z-Scheme Heterojunction Cu2O/PCN-250 Photocatalysts Simultaneously for the Enhanced Photoreduction of CO2 to Alcohols and Photooxidation of Water. / Yang, Miao-Miao; Cao, Jia-Min; Qi, Guang-Dong et al.
In: Inorganic Chemistry, Vol. 62, No. 39, 02.10.2023, p. 15963-15970.

Research output: Journal Publications and ReviewsRGC 21 - Publication in refereed journalpeer-review