Fabrication of Z-Type TiN@(A,R)TiO<sub>2</sub> Plasmonic Photocatalyst with Enhanced Photocatalytic Activity
Plasmonic effect-enhanced Z-type heterojunction photocatalysts comprise a promising solution to the two fundamental problems of current TiO<sub>2</sub>-based photocatalysis concerning low-charge carrier separation efficiency and low utilization of solar illumination. A plasmonic effect-e...
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MDPI AG
2023-06-01
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| Series: | Nanomaterials |
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| Online Access: | https://www.mdpi.com/2079-4991/13/13/1984 |
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| author | Wanting Wang Yuanting Wu Long Chen Chenggang Xu Changqing Liu Chengxin Li |
| author_facet | Wanting Wang Yuanting Wu Long Chen Chenggang Xu Changqing Liu Chengxin Li |
| author_sort | Wanting Wang |
| collection | DOAJ |
| description | Plasmonic effect-enhanced Z-type heterojunction photocatalysts comprise a promising solution to the two fundamental problems of current TiO<sub>2</sub>-based photocatalysis concerning low-charge carrier separation efficiency and low utilization of solar illumination. A plasmonic effect-enhanced TiN@anatase-TiO<sub>2</sub>/rutile-TiO<sub>2</sub> Z-type heterojunction photocatalyst with the strong interface of the N–O chemical bond was synthesized by hydrothermal oxidation of TiN. The prepared photocatalyst shows desirable visible light absorption and good visible-light-photocatalytic activity. The enhancement in photocatalytic activities contribute to the plasma resonance effect of TiN, the N–O bond-connected charge transfer channel at the TiO<sub>2</sub>/TiN heterointerface, and the synergistically Z-type charge transfer pathway between the anatase TiO<sub>2</sub> (A-TiO<sub>2</sub>) and rutile TiO<sub>2</sub> (R-TiO<sub>2</sub>). The optimization study shows that the catalyst with a weight ratio of A-TiO<sub>2</sub>/R-TiO<sub>2</sub>/TiN of approximately 15:1:1 achieved the best visible light photodegradation activity. This work demonstrates the effectiveness of fabricating plasmonic effect-enhanced Z-type heterostructure semiconductor photocatalysts with enhanced visible-light-photocatalytic activities. |
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| language | English |
| last_indexed | 2024-03-11T01:33:08Z |
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| spelling | doaj.art-461b9d9fbaf84d8dbeb9d177892b2f892023-11-18T17:12:15ZengMDPI AGNanomaterials2079-49912023-06-011313198410.3390/nano13131984Fabrication of Z-Type TiN@(A,R)TiO<sub>2</sub> Plasmonic Photocatalyst with Enhanced Photocatalytic ActivityWanting Wang0Yuanting Wu1Long Chen2Chenggang Xu3Changqing Liu4Chengxin Li5Shaanxi Key Laboratory of Green Preparation and Functionalization for Inorganic Materials, School of Material Science and Engineering, Shaanxi University of Science & Technology, Xi’an 710021, ChinaShaanxi Key Laboratory of Green Preparation and Functionalization for Inorganic Materials, School of Material Science and Engineering, Shaanxi University of Science & Technology, Xi’an 710021, ChinaShaanxi Key Laboratory of Green Preparation and Functionalization for Inorganic Materials, School of Material Science and Engineering, Shaanxi University of Science & Technology, Xi’an 710021, ChinaShaanxi Key Laboratory of Green Preparation and Functionalization for Inorganic Materials, School of Material Science and Engineering, Shaanxi University of Science & Technology, Xi’an 710021, ChinaShaanxi Key Laboratory of Green Preparation and Functionalization for Inorganic Materials, School of Material Science and Engineering, Shaanxi University of Science & Technology, Xi’an 710021, ChinaState Key Laboratory for Mechanical Behavior of Materials, School of Materials Science and Engineering, Xi’an Jiaotong University, Xi’an 710049, ChinaPlasmonic effect-enhanced Z-type heterojunction photocatalysts comprise a promising solution to the two fundamental problems of current TiO<sub>2</sub>-based photocatalysis concerning low-charge carrier separation efficiency and low utilization of solar illumination. A plasmonic effect-enhanced TiN@anatase-TiO<sub>2</sub>/rutile-TiO<sub>2</sub> Z-type heterojunction photocatalyst with the strong interface of the N–O chemical bond was synthesized by hydrothermal oxidation of TiN. The prepared photocatalyst shows desirable visible light absorption and good visible-light-photocatalytic activity. The enhancement in photocatalytic activities contribute to the plasma resonance effect of TiN, the N–O bond-connected charge transfer channel at the TiO<sub>2</sub>/TiN heterointerface, and the synergistically Z-type charge transfer pathway between the anatase TiO<sub>2</sub> (A-TiO<sub>2</sub>) and rutile TiO<sub>2</sub> (R-TiO<sub>2</sub>). The optimization study shows that the catalyst with a weight ratio of A-TiO<sub>2</sub>/R-TiO<sub>2</sub>/TiN of approximately 15:1:1 achieved the best visible light photodegradation activity. This work demonstrates the effectiveness of fabricating plasmonic effect-enhanced Z-type heterostructure semiconductor photocatalysts with enhanced visible-light-photocatalytic activities.https://www.mdpi.com/2079-4991/13/13/1984Z-type systemLSPRphotocatalystTiO<sub>2</sub> |
| spellingShingle | Wanting Wang Yuanting Wu Long Chen Chenggang Xu Changqing Liu Chengxin Li Fabrication of Z-Type TiN@(A,R)TiO<sub>2</sub> Plasmonic Photocatalyst with Enhanced Photocatalytic Activity Nanomaterials Z-type system LSPR photocatalyst TiO<sub>2</sub> |
| title | Fabrication of Z-Type TiN@(A,R)TiO<sub>2</sub> Plasmonic Photocatalyst with Enhanced Photocatalytic Activity |
| title_full | Fabrication of Z-Type TiN@(A,R)TiO<sub>2</sub> Plasmonic Photocatalyst with Enhanced Photocatalytic Activity |
| title_fullStr | Fabrication of Z-Type TiN@(A,R)TiO<sub>2</sub> Plasmonic Photocatalyst with Enhanced Photocatalytic Activity |
| title_full_unstemmed | Fabrication of Z-Type TiN@(A,R)TiO<sub>2</sub> Plasmonic Photocatalyst with Enhanced Photocatalytic Activity |
| title_short | Fabrication of Z-Type TiN@(A,R)TiO<sub>2</sub> Plasmonic Photocatalyst with Enhanced Photocatalytic Activity |
| title_sort | fabrication of z type tin a r tio sub 2 sub plasmonic photocatalyst with enhanced photocatalytic activity |
| topic | Z-type system LSPR photocatalyst TiO<sub>2</sub> |
| url | https://www.mdpi.com/2079-4991/13/13/1984 |
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