In-situ synthesis of TiO2 nanostructures on Ti foil for enhanced and stable photocatalytic performance

doi:10.1016/j.jmst.2018.09.053

IMR OpenIR

	In-situ synthesis of TiO2 nanostructures on Ti foil for enhanced and stable photocatalytic performance
	Wang, Ke 1,2; Liu, Baodan 1,2; Li, Jing 2; Liu, Xiaoyuan 1,2; Zhou, Yang 1,2; Zhang, Xinglai 1,2; Bi, Xiaoguo 3; Jiang, Xin 2
通讯作者	Liu, Baodan(baodanliu@imr.ac.cn) ; Jiang, Xin(xjiang@imr.ac.cn)
	2019-04-01
发表期刊	JOURNAL OF MATERIALS SCIENCE & TECHNOLOGY
ISSN	1005-0302
卷号	35 期号:4 页码:615-622
摘要	TiO2 nanostructures with strong interfacial adhesion and diverse morphologies have been in-situ grown on Ti foil substrate through a multiple-step method based on conventional plasma electrolytic oxidation (PEO) technology, hydrothermal reaction and ion exchange process. The PEO process is critical to the formation of TiO2 seeding layer for the nucleation of Na2Ti3O7 and H2Ti3O7 mediates that are strongly attached to the Ti foil. An ion exchange reaction can finally lead to the formation of H2Ti3O7 nanostructures with diverse morphologies and the calcination process can turn the H2Ti3O7 nanostructures into TiO2 nanostructures with enhanced crystallinity. The morphology of the TiO2 nanostructures including nanoparticles (NP), nanowhiskers (NWK), nanowires (NW) and nanosheets (NS) can be easily tailored by controlling the NaOH concentration and reaction time during hydrothermal process. The morphology, composition and optical properties of TiO2 photocatalysts were analyzed using scanning electron microscope (SEM), X-ray diffraction (XRD), photoluminescence (PL) spectroscopy and UV-vis absorption spectrum. Photocatalytic tests indicate that the TiO2 nanosheets calcined at 500 degrees C show good crystallization and the best capability of decomposing organic pollutants. The decoration of Ag cocatalyst can further improve the photocatalytic performance of the TiO2 nanosheets as a result of the enhanced charger separation efficiency. Cyclic photocatalytic test using TiO2 nanostructures grown on Ti foil substrate demonstrates the superior stability in the photodegradation of organic pollutant, suggesting the promising potential of in-situ growth technology for industrial application. (C) 2019 Published by Elsevier Ltd on behalf of The editorial office of Journal of Materials Science & Technology.
关键词	Plasma electrolytic oxidation In-situ growth TiO2 Photocatalysis Ag co-catalyst
资助者	National Natural Science Foundation of China ; Knowledge Innovation Program of Institute of Metal Research, Chinese Academy of Sciences ; Youth Innovation Promotion Association, Chinese Academy of Sciences ; Basic Science Innovation Program of Shenyang National Laboratory for Materials Science
DOI	10.1016/j.jmst.2018.09.053
收录类别	SCI
语种	英语
资助项目	National Natural Science Foundation of China[51702326] ; National Natural Science Foundation of China[51472047] ; Knowledge Innovation Program of Institute of Metal Research, Chinese Academy of Sciences[Y2NCA111A1] ; Knowledge Innovation Program of Institute of Metal Research, Chinese Academy of Sciences[Y3NCA111A1] ; Youth Innovation Promotion Association, Chinese Academy of Sciences[Y4NC711171] ; Basic Science Innovation Program of Shenyang National Laboratory for Materials Science[2017EP05] ; Basic Science Innovation Program of Shenyang National Laboratory for Materials Science[2017RP25]
WOS研究方向	Materials Science ; Metallurgy & Metallurgical Engineering
WOS类目	Materials Science, Multidisciplinary ; Metallurgy & Metallurgical Engineering
WOS记录号	WOS:000455967200020
出版者	JOURNAL MATER SCI TECHNOL
引用统计	被引频次：64[WOS] [WOS记录] [WOS相关记录]
文献类型	期刊论文
条目标识符	http://ir.imr.ac.cn/handle/321006/131447
专题	中国科学院金属研究所
通讯作者	Liu, Baodan; Jiang, Xin
作者单位	1.Univ Sci & Technol China, Sch Mat Sci & Engn, Shenyang 110016, Peoples R China 2.Chinese Acad Sci, Shenyang Natl Lab Mat Sci SYNL, IMR, Shenyang 110016, Peoples R China 3.Shenyang Inst Engn, Sch Renewable Energy, Shenyang 110136, Liaoning, Peoples R China
推荐引用方式 GB/T 7714	Wang, Ke,Liu, Baodan,Li, Jing,et al. In-situ synthesis of TiO2 nanostructures on Ti foil for enhanced and stable photocatalytic performance[J]. JOURNAL OF MATERIALS SCIENCE & TECHNOLOGY,2019,35(4):615-622.
APA	Wang, Ke.,Liu, Baodan.,Li, Jing.,Liu, Xiaoyuan.,Zhou, Yang.,...&Jiang, Xin.(2019).In-situ synthesis of TiO2 nanostructures on Ti foil for enhanced and stable photocatalytic performance.JOURNAL OF MATERIALS SCIENCE & TECHNOLOGY,35(4),615-622.
MLA	Wang, Ke,et al."In-situ synthesis of TiO2 nanostructures on Ti foil for enhanced and stable photocatalytic performance".JOURNAL OF MATERIALS SCIENCE & TECHNOLOGY 35.4(2019):615-622.