Formation of Hierarchical FeCoS2–CoS2 Double-Shelled Nanotubes with Enhanced Performance for Photocatalytic Reduction of CO2

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

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Author(s)

Detail(s)

Original languageEnglish
Pages (from-to)11918-11922
Journal / PublicationAngewandte Chemie - International Edition
Volume59
Issue number29
Online published28 Apr 2020
Publication statusPublished - 13 Jul 2020
Externally publishedYes

Abstract

Hierarchical FeCoS2–CoS2 double-shelled nanotubes have been rationally designed and constructed for efficient photocatalytic CO2 reduction under visible light. The synthetic strategy, engaging the two-step cation-exchange reactions, precisely integrates two metal sulfides into a double-shelled tubular heterostructure with both of the shells assembled from ultrathin two-dimensional (2D) nanosheets. Benefiting from the distinctive structure and composition, the FeCoS2–CoS2 hybrid can reduce bulk-to-surface diffusion length of photoexcited charge carriers to facilitate their separation. Furthermore, this hybrid structure can expose abundant active sites for enhancing CO2 adsorption and surface-dependent redox reactions, and harvest incident solar irradiation more efficiently by light scattering in the complex interior. As a result, these hierarchical FeCoS2–CoS2 double-shelled nanotubes exhibit superior activity and high stability for photosensitized deoxygenative CO2 reduction, affording a high CO-generating rate of 28.1 μmol h−1 (per 0.5 mg of catalyst). © 2020 Wiley-VCH Verlag GmbH & Co. KGaA, Weinheim

Research Area(s)

  • CO2 reduction, heterostructures, metal sulfides, photocatalysis

Citation Format(s)

Formation of Hierarchical FeCoS2–CoS2 Double-Shelled Nanotubes with Enhanced Performance for Photocatalytic Reduction of CO2. / Wang, Yan; Wang, Sibo; Zhang, Song Lin et al.
In: Angewandte Chemie - International Edition, Vol. 59, No. 29, 13.07.2020, p. 11918-11922.

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