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Status | 已發表Published |
Steering interfacial charge kinetics: Synergizing cocatalyst roles of Ti3C2Mx (MXene) and NCDs for superior photocatalytic performance over TiO2 | |
Peng, Chao1; Zhou, Tao1; Wei, Ping1; Yan, Xiqiang2; Kong, Youchao3; Xu, Wenkang4; Wang, Hongjuan4; Yu, Hao4; Jia, Jianbo1; Zhang, Kun1; Zhou, Bingpu3; Pan, Hui3 | |
2022-06-18 | |
Source Publication | APPLIED SURFACE SCIENCE |
ISSN | 0169-4332 |
Volume | 599Pages:154001 |
Abstract | Steering the kinetics of photoexcited electron-hole pairs to achieve the elongated lifetime of carrier is one of key strategies to enhance the photocatalytic performance. Here, 0D/2D/2D NCDs/TiO/TiCM photocatalyst is fabricated for the first time via hydrothermal route, the mixed group terminated MXene (TiCM, M = -O, –OH, -F) and N-doped carbon dots (NCDs) are exploited as an electron acceptor and hole mediator, respectively, enhancing the photocatalytic activity of TiO nanosheets by steering interfacial charge kinetics. The photocatalytic hydrogen evolution and tetracycline hydrochloride (TC) degradation of 0.1 NCDs/TiO/TiCM-12 h are ∼ 4 and 9 times higher than those of TiO, respectively. UPS and DFT calculation results determine that the work function (Φ) of TiCM as 4.16 eV and 3.63 eV, respectively, which are larger than that of bare TiC (Φ = 3.55 eV), while the work function of TiO and NCDs are 3.98 and 3.09 eV, respectively. The results of charge transfer dynamics reveal that the photocatalytic enhancement of NCDs/TiO/TiCM is dominantly attributed to the synergizing cocatalyst roles of TiCM (MXene) and NCDs. The insight into the surface termination dominated electronic property of MXene and synergistic steering the interfacial charge kinetics is an effective way to fabricate high performance MXene-based photocatalysts. |
Keyword | Ti3c2mx Mxene Ncds Photocatalysis Synergizing Cocatalyst Steering Charge Kinetics |
DOI | 10.1016/j.apsusc.2022.154001 |
URL | View the original |
Indexed By | SCIE |
Language | 英語English |
WOS Research Area | Chemistry ; Materials Science ; Physics |
WOS Subject | Chemistry, Physical ; Materials Science, Coatings & Films ; Physics, Applied ; Physics, Condensed Matter |
WOS ID | WOS:000817824900004 |
Scopus ID | 2-s2.0-85132771741 |
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Citation statistics | |
Document Type | Journal article |
Collection | INSTITUTE OF APPLIED PHYSICS AND MATERIALS ENGINEERING |
Corresponding Author | Peng, Chao; Yan, Xiqiang; Pan, Hui |
Affiliation | 1.School of Biotechnology and Health Sciences, Wuyi University, Jiangmen, 529020, China 2.School of Materials Science and Energy Engineering, Guangdong Key Lab for Hydrogen Energy Technologies, Foshan University, Foshan, 528000, China 3.Institute of Applied Physics and Materials Engineering, University of Macau, Macao SAR, 999078, China 4.School of Chemistry and Chemical Engineering, Key Laboratory of Fuel Cell Technology of Guangdong Province, Guangdong Provincial Key Lab of Green Chemical Product Technology, South China University of Technology, Guangzhou, 510640, China |
Corresponding Author Affilication | INSTITUTE OF APPLIED PHYSICS AND MATERIALS ENGINEERING |
Recommended Citation GB/T 7714 | Peng, Chao,Zhou, Tao,Wei, Ping,et al. Steering interfacial charge kinetics: Synergizing cocatalyst roles of Ti3C2Mx (MXene) and NCDs for superior photocatalytic performance over TiO2[J]. APPLIED SURFACE SCIENCE, 2022, 599, 154001. |
APA | Peng, Chao., Zhou, Tao., Wei, Ping., Yan, Xiqiang., Kong, Youchao., Xu, Wenkang., Wang, Hongjuan., Yu, Hao., Jia, Jianbo., Zhang, Kun., Zhou, Bingpu., & Pan, Hui (2022). Steering interfacial charge kinetics: Synergizing cocatalyst roles of Ti3C2Mx (MXene) and NCDs for superior photocatalytic performance over TiO2. APPLIED SURFACE SCIENCE, 599, 154001. |
MLA | Peng, Chao,et al."Steering interfacial charge kinetics: Synergizing cocatalyst roles of Ti3C2Mx (MXene) and NCDs for superior photocatalytic performance over TiO2".APPLIED SURFACE SCIENCE 599(2022):154001. |
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