Constructing Pd/ferroelectric Bi4Ti(3)O(12) nanoflake interfaces for O-2 activation and boosting NO photo-oxidation

doi:10.1016/j.apcatb.2021.120876

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	Constructing Pd/ferroelectric Bi4Ti(3)O(12) nanoflake interfaces for O-2 activation and boosting NO photo-oxidation
	Zhang, Qian 4,5; Shi, Yuanyu 2; Shi, Xianjin 3,5; Huang, Tingting 5; Lee, Shuncheng 1; Huang, Yu 4,5; Cao, Jun-ji 4,5
刊名	APPLIED CATALYSIS B-ENVIRONMENTAL
	2022-03-01
卷号	302 页码:13
关键词	Ferroelectric polarization Perovskite nanomaterials O(2 )activation Photocatalysis Air pollution
ISSN号	0926-3373
DOI	10.1016/j.apcatb.2021.120876
通讯作者	Huang, Yu(huangyu@ieecas.cn) ; Cao, Jun-ji(cao@loess.llqg.ac.cn)
英文摘要	Photo-oxidative NOx removal often encountered with sluggish charge carrier separation kinetics and poor selectivity. Herein, Pd/ferroelectric Bi4Ti3O12 nanoflakes (Pd/BTO NF) were constructed to investigate the photo-excited charge separation, O2 activation and the generated reactive oxygen species (ROS) in dictating NO removal. Results showed that the depolarization field of ferroelectric BTO NF significantly promoted bulk charge separation, leading to boosted NO removal reaction kinetics (10 times higher) for Pd/BTO NF comparing with Pd/TiO2. Revealed by electronic paramagnetic resonance and radical scavenging tests, it is observed that the primary O2 activation species differed among Pd, Ag and Pt supported BTO NF photocatalysts, which resulted in different selectivity. The underlying mechanism of NO photo-oxidative conversion pathway was studied by in situ diffuse reflectance infrared Fourier transform spectroscopy. This work illustrate that metal/ferroelectric interfaces can be tuned to obtain differing O2 activation species, and notable selectivity changes in photocatalysis mediated environmental remediation reactions.
资助项目	National Key Research and Development Program of China[2016YFA0203000] ; National Natural Science Foundation of China[21707142] ; Youth Innovation Promotion Association[2021413] ; West Light Foundation[XAB2018B06] ; Chinese Academy of Sciences
WOS关键词	TIO2 ; NANOPARTICLES ; OXIDATION ; OXYGEN ; PD ; SELECTIVITY ; REMOVAL ; PHOTOCATALYSIS ; NANOSHEETS ; REDUCTION
WOS研究方向	Chemistry ; Engineering
语种	英语
出版者	ELSEVIER
WOS记录号	WOS:000720477200002
资助机构	National Key Research and Development Program of China ; National Natural Science Foundation of China ; Youth Innovation Promotion Association ; West Light Foundation ; Chinese Academy of Sciences
内容类型	期刊论文
源URL	[http://ir.ieecas.cn/handle/361006/17257]
专题	地球环境研究所_粉尘与环境研究室
通讯作者	Huang, Yu; Cao, Jun-ji
作者单位	1.Hong Kong Polytech Univ, Dept Civil & Environm Engn, Hong Kong, Peoples R China 2.Hohai Univ, Nanjing 211100, Peoples R China 3.Univ Chinese Acad Sci, Beijing 100049, Peoples R China 4.CAS Ctr Excellence Quaternary Sci & Global Change, Xian 710061, Peoples R China 5.Chinese Acad Sci, Inst Earth Environm, State Key Lab Loess & Quaternary Geol SKLLQG, Key Lab Aerosol Chem & Phys, Xian 710061, Peoples R China
推荐引用方式 GB/T 7714	Zhang, Qian,Shi, Yuanyu,Shi, Xianjin,et al. Constructing Pd/ferroelectric Bi4Ti(3)O(12) nanoflake interfaces for O-2 activation and boosting NO photo-oxidation[J]. APPLIED CATALYSIS B-ENVIRONMENTAL,2022,302:13.
APA	Zhang, Qian.,Shi, Yuanyu.,Shi, Xianjin.,Huang, Tingting.,Lee, Shuncheng.,...&Cao, Jun-ji.(2022).Constructing Pd/ferroelectric Bi4Ti(3)O(12) nanoflake interfaces for O-2 activation and boosting NO photo-oxidation.APPLIED CATALYSIS B-ENVIRONMENTAL,302,13.
MLA	Zhang, Qian,et al."Constructing Pd/ferroelectric Bi4Ti(3)O(12) nanoflake interfaces for O-2 activation and boosting NO photo-oxidation".APPLIED CATALYSIS B-ENVIRONMENTAL 302(2022):13.