Three-dimensional biogenic C-doped Bi2MoO6/In2O3-ZnO Z-scheme heterojunctions derived from a layered precursor
Publication in refereed journal

香港中文大學研究人員

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摘要Novel 3D biogenic C-doped Bi2MoO6/In2O3-ZnO Z-scheme heterojunctions were synthesized for the first time, using cotton fiber as template. The as-prepared samples showed excellent adsorption and photodegradation performance toward the hazardous antibiotic doxycycline under simulated sunlight irradiation. The morphology, phase composition and in situ carbon doping could be precisely controlled by adjusting processing parameters. The carbon doping in Bi2MoO6/In2O3-ZnO-ZnO was derived from the cotton template, and the carbon content could be varied in the range 0.9-4.4 wt.% via controlling the heat treatment temperature. The sample with Bi2MoO6/In2O3-ZnO-ZnO molar ratio of 1:2 and carbon content of 1.1 wt.% exhibited the highest photocatalytic activity toward doxycycline degradation, which was 3.6 and 4.3 times higher than those of pure Bi2MoO6 and ZnInAl-CLDH (calcined layered double hydroxides), respectively. It is believed that the Z-scheme heterojunction with C-doping, the 3D hierarchically micro-meso-macro porous structure, as well as the high adsorption capacity, contributed significantly to the enhanced photocatalytic activity. (C) 2018 The Research Center for Eco-Environmental Sciences, Chinese Academy of Sciences. Published by Elsevier B.V.
著者Li HY, Li J, Yang P, Ng DHL, Cui XL, Ji F
期刊名稱Journal of Environmental Sciences
出版年份2019
月份5
卷號79
出版社SCIENCE PRESS
頁次54 - 66
國際標準期刊號1001-0742
電子國際標準期刊號1878-7320
語言英式英語
關鍵詞Biotemplate, Bi2MoO6, ZnlnAl-layered double hydroxides (LDH), Adsorption, Photocatalysis
Web of Science 學科類別Environmental Sciences;Environmental Sciences & Ecology

上次更新時間 2021-20-01 於 23:03