IEECAS OpenIR
In situ construction of biocompatible Z-scheme alpha-Bi2O3/CuBi2O4 heterojunction for NO removal under visible light
Chen, Qian1; Long, Huimin1; Chen, Meijuan2; Rao, Yongfang1; Li, Xinwei4,5; Huang, Yu3,4
Corresponding AuthorRao, Yongfang(yfrao@mail.xjtu.edu.cn) ; Huang, Yu(huangyu@ieecas.cn)
2020-09-05
Source PublicationAPPLIED CATALYSIS B-ENVIRONMENTAL
ISSN0926-3373
Volume272Pages:8
AbstractThe 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.
KeywordIn situ synthesis Z-scheme heterojunction Photocatalytic NO removal In situ DRIFTS Cytotoxicity
DOI10.1016/j.apcatb.2020.119008
WOS KeywordSELF-SACRIFICIAL SYNTHESIS ; PHOTOCATALYTIC NO ; BI METAL ; CHARGE-TRANSFER ; ELECTRIC-FIELD ; PERFORMANCE ; OXIDE ; MECHANISM ; TETRACYCLINE ; DEGRADATION
Indexed BySCI ; SCI
Language英语
Funding ProjectKey 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 Research AreaChemistry ; Engineering
Funding OrganizationKey Laboratory of Aerosol Chemistry and Physics, Institute of Earth Environment, CAS ; State Key Laboratory of Loess and Quaternary Geology, Institute of Earth Environment, CAS
WOS SubjectChemistry, Physical ; Engineering, Environmental ; Engineering, Chemical
WOS IDWOS:000533148700031
PublisherELSEVIER
Citation statistics
Cited Times:6[WOS]   [WOS Record]     [Related Records in WOS]
Document Type期刊论文
Identifierhttp://ir.ieecas.cn/handle/361006/14001
Collection中国科学院地球环境研究所
Corresponding AuthorRao, Yongfang; Huang, Yu
Affiliation1.Xi Jiaotong Univ, Dept Environm Sci & Engn, Xian 710049, Peoples R China
2.Xi An Jiao Tong Univ, Sch Human Settlements & Civil Engn, Xian 710049, Peoples R China
3.Chinese Acad Sci, Inst Earth Environm, Key Lab Aerosol Chem & Phys, Xian 710075, Peoples R China
4.Chinese Acad Sci, Inst Earth Environm, State Key Lab Loess & Quaternary Geol SKLLQG, Xian 710075, Peoples R China
5.Hong Kong Polytech Univ, Dept Civil & Environm Engn, Hong Kong, Peoples R China
Recommended Citation
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.
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