In situ construction of biocompatible Z-scheme alpha-Bi2O3/CuBi2O4 heterojunction for NO removal under visible light

doi:10.1016/j.apcatb.2020.119008

	In situ construction of biocompatible Z-scheme alpha-Bi2O3/CuBi2O4 heterojunction for NO removal under visible light
	Chen, Qian 5; Long, Huimin 5; Chen, Meijuan 1; Rao, Yongfang 5; Li, Xinwei 3,4; Huang, Yu 2,3
刊名	APPLIED CATALYSIS B-ENVIRONMENTAL
	2020-09-05
卷号	272 页码:8
关键词	In situ synthesis Z-scheme heterojunction Photocatalytic NO removal In situ DRIFTS Cytotoxicity
ISSN号	0926-3373
DOI	10.1016/j.apcatb.2020.119008
通讯作者	Rao, Yongfang(yfrao@mail.xjtu.edu.cn) ; Huang, Yu(huangyu@ieecas.cn)
英文摘要	The design of efficient, stable and biocompatible photocatalysts for air purification is still a challenge. In this work, we report a Z-scheme alpha-Bi2O3/CuBi2O4 composite with high-quality interfaces using an in situ synthesis method. The alpha-Bi2O3/CuBi2O4 displays significantly enhanced photocatalytic activity for NO removal (30 %) in comparison with alpha-Bi2O3 (17 %) under visible light irradiation. Based on characterizations, theoretical calculations and ESR tests, the Z-scheme migration mechanism of photoinduced electrons and holes on alpha-Bi2O3/CuBi2O4 heterojunction was proposed. The formation of intermediates and products was monitored by in situ DRIFTS. The NO adsorption and activation on alpha-Bi2O3/CuBi2O4 surface are more favorable than that on alpha-Bi2O3 surface. The alpha-Bi2O3/CuBi2O4 also shows high selectivity for the conversion of NO to NO- 3. Moreover, the cytotoxicity of alpha-Bi2O3/CuBi2O4 exposed to human alveolar epithelial cell has been evaluated for its potential application in air purification. This work provides a new perspective regarding the design of Z-scheme heterojunctions by an in situ method and a promising photocatalyst suitable for air pollution control.
资助项目	Key Laboratory of Aerosol Chemistry and Physics, Institute of Earth Environment, CAS[KLACP1701] ; State Key Laboratory of Loess and Quaternary Geology, Institute of Earth Environment, CAS[SKLLQG1516]
WOS关键词	SELF-SACRIFICIAL SYNTHESIS ; PHOTOCATALYTIC NO ; BI METAL ; CHARGE-TRANSFER ; ELECTRIC-FIELD ; PERFORMANCE ; OXIDE ; MECHANISM ; TETRACYCLINE ; DEGRADATION
WOS研究方向	Chemistry ; Engineering
语种	英语
出版者	ELSEVIER
WOS记录号	WOS:000533148700031
资助机构	Key Laboratory of Aerosol Chemistry and Physics, Institute of Earth Environment, CAS ; State Key Laboratory of Loess and Quaternary Geology, Institute of Earth Environment, CAS
内容类型	期刊论文
源URL	[http://ir.ieecas.cn/handle/361006/14000]
专题	中国科学院地球环境研究所
通讯作者	Rao, Yongfang; Huang, Yu
作者单位	1.Xi An Jiao Tong Univ, Sch Human Settlements & Civil Engn, Xian 710049, Peoples R China 2.Chinese Acad Sci, Inst Earth Environm, Key Lab Aerosol Chem & Phys, Xian 710075, Peoples R China 3.Chinese Acad Sci, Inst Earth Environm, State Key Lab Loess & Quaternary Geol SKLLQG, Xian 710075, Peoples R China 4.Hong Kong Polytech Univ, Dept Civil & Environm Engn, Hong Kong, Peoples R China 5.Xi Jiaotong Univ, Dept Environm Sci & Engn, Xian 710049, Peoples R China
推荐引用方式 GB/T 7714	Chen, Qian,Long, Huimin,Chen, Meijuan,et al. In situ construction of biocompatible Z-scheme alpha-Bi2O3/CuBi2O4 heterojunction for NO removal under visible light[J]. APPLIED CATALYSIS B-ENVIRONMENTAL,2020,272:8.
APA	Chen, Qian,Long, Huimin,Chen, Meijuan,Rao, Yongfang,Li, Xinwei,&Huang, Yu.(2020).In situ construction of biocompatible Z-scheme alpha-Bi2O3/CuBi2O4 heterojunction for NO removal under visible light.APPLIED CATALYSIS B-ENVIRONMENTAL,272,8.
MLA	Chen, Qian,et al."In situ construction of biocompatible Z-scheme alpha-Bi2O3/CuBi2O4 heterojunction for NO removal under visible light".APPLIED CATALYSIS B-ENVIRONMENTAL 272(2020):8.