Metal–Organic Framework Decorated Cuprous Oxide Nanowires for Long-lived Charges Applied in Selective Photocatalytic CO2 Reduction to CH4

Research output: Journal Publications and Reviews (RGC: 21, 22, 62)21_Publication in refereed journalpeer-review

15 Scopus Citations
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Author(s)

  • Hao Wu
  • Xin Ying Kong
  • Xiaoming Wen
  • Siang-Piao Chai
  • Emma C. Lovell
  • Junwang Tang

Related Research Unit(s)

Detail(s)

Original languageEnglish
Pages (from-to)8455-8459
Journal / PublicationAngewandte Chemie - International Edition
Volume60
Issue number15
Online published28 Dec 2020
Publication statusPublished - 6 Apr 2021

Abstract

Improving the stability of cuprous oxide (Cu2O) is imperative to its practical applications in artificial photosynthesis. In this work, Cu2O nanowires are encapsulated by metal–organic frameworks (MOFs) of Cu3(BTC)2 (BTC=1,3,5-benzene tricarboxylate) using a surfactant-free method. Such MOFs not only suppress the water vapor-induced corrosion of Cu2O but also facilitate charge separation and CO2 uptake, thus resulting in a nanocomposite representing 1.9 times improved activity and stability for selective photocatalytic CO2 reduction into CH4 under mild reaction conditions. Furthermore, direct transfer of photogenerated electrons from the conduction band of Cu2O to the LUMO level of non-excited Cu3(BTC)2 has been evidenced by time-resolved photoluminescence. This work proposes an effective strategy for CO2 conversion by a synergy of charge separation and CO2 adsorption, leading to the enhanced photocatalytic reaction when MOFs are integrated with metal oxide photocatalyst.

Research Area(s)

  • carbon dioxide fixation, charge transfer, metal–organic frameworks, nanostructures, photosynthesis

Citation Format(s)

Metal–Organic Framework Decorated Cuprous Oxide Nanowires for Long-lived Charges Applied in Selective Photocatalytic CO2 Reduction to CH4. / Wu, Hao; Kong, Xin Ying; Wen, Xiaoming; Chai, Siang-Piao; Lovell, Emma C.; Tang, Junwang; Ng, Yun Hau.

In: Angewandte Chemie - International Edition, Vol. 60, No. 15, 06.04.2021, p. 8455-8459.

Research output: Journal Publications and Reviews (RGC: 21, 22, 62)21_Publication in refereed journalpeer-review