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Preparation of Zn 3 In 2 S 6 /TiO 2 for Enhanced CO 2 Photocatalytic Reduction Activity Via Z‐scheme Electron Transfer
Author(s) -
She Houde,
Wang Yan,
Zhou Hua,
Li Yuan,
Wang Lei,
Huang Jingwei,
Wang Qizhao
Publication year - 2019
Publication title -
chemcatchem
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.497
H-Index - 106
eISSN - 1867-3899
pISSN - 1867-3880
DOI - 10.1002/cctc.201801745
Subject(s) - x ray photoelectron spectroscopy , photocatalysis , photoluminescence , scanning electron microscope , materials science , diffuse reflectance infrared fourier transform , nanocomposite , hydrothermal synthesis , transmission electron microscopy , spectroscopy , electron transfer , hydrothermal circulation , analytical chemistry (journal) , high resolution transmission electron microscopy , nanotechnology , catalysis , chemical engineering , chemistry , photochemistry , physics , optoelectronics , composite material , environmental chemistry , quantum mechanics , engineering , biochemistry
Photocatalytic reduction of CO 2 is increasingly attracting research interest for the growing concerns about climate change resulted from the greenhouse effect due to the industrial emission of CO 2 . In this paper, we report the synthesis of Zn 3 In 2 S 6 modified TiO 2 nanocomposite via a facial hydrothermal method. The samples were characterized by photoluminescence spectra (PL), UV‐vis diffuse reflectance spectra (DRS), X‐ray diffraction (XRD), scanning electron microscopy (SEM), transmission electron microscope (TEM), X‐ray photoelectron spectroscopy (XPS) and energy dispersive X‐ray spectroscopy (EDS). The production rate of CO from CO 2 is dramatically improved over the obtained composite catalyst. The contact between Zn 3 In 2 S 6 and TiO 2 is responsible for this ameliorated photocatalytic activity because of the formation of the Z‐scheme charge transfer mechanism which favors the separation of photo‐induced charges.