Constructing Pd/ferroelectric Bi4Ti(3)O(12) nanoflake interfaces for O-2 activation and boosting NO photo-oxidation | |
Zhang, Qian1,2; Shi, Yuanyu4; Shi, Xianjin1,3; Huang, Tingting1; Lee, Shuncheng5; Huang, Yu1,2; Cao, Jun-ji1,2 | |
通讯作者 | Huang, Yu(huangyu@ieecas.cn) ; Cao, Jun-ji(cao@loess.llqg.ac.cn) |
2022-03-01 | |
发表期刊 | APPLIED CATALYSIS B-ENVIRONMENTAL |
ISSN | 0926-3373 |
卷号 | 302页码:13 |
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. |
关键词 | Ferroelectric polarization Perovskite nanomaterials O(2 )activation Photocatalysis Air pollution |
DOI | 10.1016/j.apcatb.2021.120876 |
关键词[WOS] | TIO2 ; NANOPARTICLES ; OXIDATION ; OXYGEN ; PD ; SELECTIVITY ; REMOVAL ; PHOTOCATALYSIS ; NANOSHEETS ; REDUCTION |
收录类别 | SCI ; SCI |
语种 | 英语 |
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研究方向 | Chemistry ; Engineering |
项目资助者 | 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 |
WOS类目 | Chemistry, Physical ; Engineering, Environmental ; Engineering, Chemical |
WOS记录号 | WOS:000720477200002 |
出版者 | ELSEVIER |
引用统计 | |
文献类型 | 期刊论文 |
条目标识符 | http://ir.ieecas.cn/handle/361006/17258 |
专题 | 粉尘与环境研究室 第四纪科学与全球变化卓越创新中心 |
通讯作者 | Huang, Yu; Cao, Jun-ji |
作者单位 | 1.Chinese Acad Sci, Inst Earth Environm, State Key Lab Loess & Quaternary Geol SKLLQG, Key Lab Aerosol Chem & Phys, Xian 710061, Peoples R China 2.CAS Ctr Excellence Quaternary Sci & Global Change, Xian 710061, Peoples R China 3.Univ Chinese Acad Sci, Beijing 100049, Peoples R China 4.Hohai Univ, Nanjing 211100, Peoples R China 5.Hong Kong Polytech Univ, Dept Civil & Environm Engn, Hong Kong, 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. |
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