Entrapment of Bi2O3 nanoparticles in TiO2 nanotubes for visible light-driven photocatalysis

doi:10.1007/s11164-018-3520-z

	Entrapment of Bi2O3 nanoparticles in TiO2 nanotubes for visible light-driven photocatalysis
	Peng, Quanming 1,3; Peng, Guiming 2; Wu, Liangpeng 1; Wang, Xiaoyang 1,3; Yang, Xu 1; Li, Xinjun 1
刊名	RESEARCH ON CHEMICAL INTERMEDIATES
	2018-11-01
卷号	44 期号:11 页码:6753-6763
关键词	TiO2 nanotubes Bi2O3 Confinement effect Visible light Photocatalysis
ISSN号	0922-6168
DOI	10.1007/s11164-018-3520-z
通讯作者	Li, Xinjun(lixj@ms.giec.ac.cn)
英文摘要	In this study, we prepared nanoparticles of the visible light-responsive photocatalyst, Bi2O3 entrapped in anatase TiO2 nanotubes (Bi2O3-in-TNTs) via a vacuum-assisted precursor-filling process followed by annealing. Owing to the unique tubular electronic structure of TiO2 nanotubes, the interior of the nanotube is in an electron-deficient state, which was confirmed by XPS spectra and H-2-TPR. Electrochemical impedance studies showed that the Bi2O3-in-TNTs demonstrated a more efficient separation of photogenerated carriers than when Bi2O3 nanoparticles were deposited on the outer wall of TiO2 nanotubes (Bi2O3-out-TNTs). Due to the confinement effect of TiO2 nanotubes, which inhibits photogenerated carriers' recombination, the Bi2O3-in-TNTs exhibited a better photocatalytic performance for the photo-degradation of methyl orange under visible light compared to Bi2O3-out-TNTs.
资助项目	Science and Technology Program of Guangzhou, China[201803030019] ; Natural Science Foundation of Guangdong Province[2015A030313715] ; Natural Science Foundation of Jiangxi Province[20171BAB213010] ; Analytical & Testing Center, Guangzhou Institute of Energy Conversion, Chinese Academy of Sciences, China
WOS关键词	PERFORMANCE ; NANOCOMPOSITES ; COMPOSITE
WOS研究方向	Chemistry
语种	英语
出版者	SPRINGER
WOS记录号	WOS:000449307900020
资助机构	Science and Technology Program of Guangzhou, China ; Natural Science Foundation of Guangdong Province ; Natural Science Foundation of Jiangxi Province ; Analytical & Testing Center, Guangzhou Institute of Energy Conversion, Chinese Academy of Sciences, China
内容类型	期刊论文
源URL	[http://ir.giec.ac.cn/handle/344007/24250]
专题	中国科学院广州能源研究所
通讯作者	Li, Xinjun
作者单位	1.Chinese Acad Sci, Guangzhou Inst Energy Convers, Guangdong Prov Key Lab New & Renewable Energy Res, Key Lab Renewable Energy, Guangzhou 510640, Guangdong, Peoples R China 2.Guangdong Univ Technol, Sch Mat & Energy, Guangzhou 510006, Guangdong, Peoples R China 3.Univ Chinese Acad Sci, Beijing 100049, Peoples R China
推荐引用方式 GB/T 7714	Peng, Quanming,Peng, Guiming,Wu, Liangpeng,et al. Entrapment of Bi2O3 nanoparticles in TiO2 nanotubes for visible light-driven photocatalysis[J]. RESEARCH ON CHEMICAL INTERMEDIATES,2018,44(11):6753-6763.
APA	Peng, Quanming,Peng, Guiming,Wu, Liangpeng,Wang, Xiaoyang,Yang, Xu,&Li, Xinjun.(2018).Entrapment of Bi2O3 nanoparticles in TiO2 nanotubes for visible light-driven photocatalysis.RESEARCH ON CHEMICAL INTERMEDIATES,44(11),6753-6763.
MLA	Peng, Quanming,et al."Entrapment of Bi2O3 nanoparticles in TiO2 nanotubes for visible light-driven photocatalysis".RESEARCH ON CHEMICAL INTERMEDIATES 44.11(2018):6753-6763.