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	Synthesis and enhanced photocatalytic activity of a BiOI/TiO2 nanobelt array for methyl orange degradation under visible light irradiation
	Teng Q. Z.; Zhou, X. S.; Jin, B.; Luo, J.; Xu, X. Y.; Guan, H. J.; Wang, W.; Yang, F.
	2016
关键词	p-n-junction highly efficient photoelectrochemical properties nanotube arrays ionic liquid water tio2 heterojunction bioi performance
英文摘要	A novel heterojunction by facet coupling of BiOI onto TiO2 nanobelt arrays (NBAs) as a visible light photocatalyst was achieved through a hydrothermal method. The BiOI/TiO2 heterojunction had been investigated by scanning electron microscopy (SEM), transmission electron microscopy (TEM), X-ray diffraction (XRD), X-ray photoelectron spectra (XPS), UV-Vis diffuse reflectance spectroscopy (DRS), photoluminescence (PL) spectroscopy and electrochemical techniques. The BiOI/TiO2 heterojunction presented a significantly enhanced photocatalytic performance in degrading methyl orange (MO) under visible light irradiation. The obviously reduced electron-hole recombination rates of BiOI/TiO2 were demonstrated from PL spectroscopy measurements and the photoelectrochemical evaluation. The 2-BiOI/TiO2 NBAs sample displays the highest photocatalytic activity toward the degradation of the MO solution under visible-light irradiation, corresponding to an apparent pseudo-first-order rate constant kapp of 0.0973 min(-1). It is 5 times more than that of a pure TiO2 nanobelt array photocatalyst.
出处	Rsc Advances
卷	6
期	43
页	36881-36887
语种	英语
ISSN号	2046-2069
DOI标识	10.1039/c6ra01707j
内容类型	SCI/SSCI论文
源URL	[http://ir.igsnrr.ac.cn/handle/311030/42796]
专题	地理科学与资源研究所_历年回溯文献
推荐引用方式 GB/T 7714	Teng Q. Z.,Zhou, X. S.,Jin, B.,et al. Synthesis and enhanced photocatalytic activity of a BiOI/TiO2 nanobelt array for methyl orange degradation under visible light irradiation. 2016.

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