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标题：Deposition of copper indium sulfide on TiO2 nanotube arrays and its application for photocatalytic decomposition of gaseous IPA
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作者：Young Ku ; Young Ku ; Pei-Yu Lin 等
期刊名称：Sustainable Environment Research
印刷版ISSN：2468-2039
出版年度：2016
卷号：26
期号：5
页码：224-229
DOI：10.1016/j.serj.2016.04.016
语种：English
出版社：Elsevier
摘要：Abstract TiO2 nanotube arrays (TNTs) were modified with copper indium sulfide (Cu/In/S) by successive ionic layer adsorption and reaction (SILAR) method. The field-emission scanning electron microscopy and X-ray photoelectron spectroscopy analysis demonstrated the presence of copper indium sulfide nanoparticles on the surface of the modified TNTs. The Cu/In/S-modified TNTs exhibited higher photocurrent density and photocatalytic activity than plain TNTs. The concentration of sulfur precursor was found to be an important factor on the composition of modified Cu/In/S films by SILAR. Some composition deviations were observed on the stoichiometry of the Cu/In/S-modified TNTs, which evidently affected the electrochemical characteristics of the modified TNTs. Experiments using the modified TNTs of composition close to the stoichiometric ratio of CuInS2 usually delivered higher photocatalytic decomposition of gaseous isopropyl alcohol in air streams and exhibited better stability during operation.
关键词：KeywordsenTiO2 nanotube arraysCopper indium sulfideSuccessive ionic layer adsorption and reaction (SILAR)Photocatalysis