TiO2 Nanotubes/Ag/MoS2 Meshy Photoelectrode with Excellent Photoelectrocatalytic Degradation Activity for Tetracycline Hydrochloride
A novel type of TiO2 nanotubes (NTs)/Ag/MoS2 meshy photoelectrode was fabricated with highly oriented TiO2 nanotube arrays grown from a Ti mesh supporting Ag nanoparticles and three-dimensional MoS2 nanosheets. In this structure, Ag nanoparticles act as bridges to connect MoS2 and TiO2 and pathways...
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| Format: | Article |
| Language: | English |
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MDPI AG
2018-08-01
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| Series: | Nanomaterials |
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| Online Access: | http://www.mdpi.com/2079-4991/8/9/666 |
| _version_ | 1828385796894228480 |
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| author | Tingting Li Zhuhong Wang Chaochao Liu Chunmin Tang Xinkai Wang Gongsheng Ding Yichun Ding Lixia Yang |
| author_facet | Tingting Li Zhuhong Wang Chaochao Liu Chunmin Tang Xinkai Wang Gongsheng Ding Yichun Ding Lixia Yang |
| author_sort | Tingting Li |
| collection | DOAJ |
| description | A novel type of TiO2 nanotubes (NTs)/Ag/MoS2 meshy photoelectrode was fabricated with highly oriented TiO2 nanotube arrays grown from a Ti mesh supporting Ag nanoparticles and three-dimensional MoS2 nanosheets. In this structure, Ag nanoparticles act as bridges to connect MoS2 and TiO2 and pathways for electron transfer, ensuring the abundant production of active electrons, which are the source of •O2−. The TiO2 NTs/Ag/MoS2 mesh can be used as both photocatalyst and electrode, exhibiting enhanced photoelectrocatalytic efficiency in degrading tetracycline hydrochloride under visible light irradiation (λ ≥ 420 nm). Compared to unmodified TiO2 NTs, the improved photoelectrocatalytic activity of the TiO2 NTs/Ag/MoS2 arise from the formation of Z-scheme heterojunctions, which facilitate the efficient separation of photogenerated electron-hole pairs through the Schottky barriers at the interfaces of TiO2 NTs–Ag and Ag–MoS2. |
| first_indexed | 2024-12-10T05:26:06Z |
| format | Article |
| id | doaj.art-e27a9831c9094023ae278eb5aad2340b |
| institution | Directory Open Access Journal |
| issn | 2079-4991 |
| language | English |
| last_indexed | 2024-12-10T05:26:06Z |
| publishDate | 2018-08-01 |
| publisher | MDPI AG |
| record_format | Article |
| series | Nanomaterials |
| spelling | doaj.art-e27a9831c9094023ae278eb5aad2340b2022-12-22T02:00:41ZengMDPI AGNanomaterials2079-49912018-08-018966610.3390/nano8090666nano8090666TiO2 Nanotubes/Ag/MoS2 Meshy Photoelectrode with Excellent Photoelectrocatalytic Degradation Activity for Tetracycline HydrochlorideTingting Li0Zhuhong Wang1Chaochao Liu2Chunmin Tang3Xinkai Wang4Gongsheng Ding5Yichun Ding6Lixia Yang7College of Environmental and Chemical Engineering, Nanchang Hangkong University, Nanchang 330063, ChinaCollege of Environmental and Chemical Engineering, Nanchang Hangkong University, Nanchang 330063, ChinaCollege of Environmental and Chemical Engineering, Nanchang Hangkong University, Nanchang 330063, ChinaCollege of Environmental and Chemical Engineering, Nanchang Hangkong University, Nanchang 330063, ChinaCollege of Environmental and Chemical Engineering, Nanchang Hangkong University, Nanchang 330063, ChinaCollege of Environmental and Chemical Engineering, Nanchang Hangkong University, Nanchang 330063, ChinaCollege of Environmental and Chemical Engineering, Nanchang Hangkong University, Nanchang 330063, ChinaCollege of Environmental and Chemical Engineering, Nanchang Hangkong University, Nanchang 330063, ChinaA novel type of TiO2 nanotubes (NTs)/Ag/MoS2 meshy photoelectrode was fabricated with highly oriented TiO2 nanotube arrays grown from a Ti mesh supporting Ag nanoparticles and three-dimensional MoS2 nanosheets. In this structure, Ag nanoparticles act as bridges to connect MoS2 and TiO2 and pathways for electron transfer, ensuring the abundant production of active electrons, which are the source of •O2−. The TiO2 NTs/Ag/MoS2 mesh can be used as both photocatalyst and electrode, exhibiting enhanced photoelectrocatalytic efficiency in degrading tetracycline hydrochloride under visible light irradiation (λ ≥ 420 nm). Compared to unmodified TiO2 NTs, the improved photoelectrocatalytic activity of the TiO2 NTs/Ag/MoS2 arise from the formation of Z-scheme heterojunctions, which facilitate the efficient separation of photogenerated electron-hole pairs through the Schottky barriers at the interfaces of TiO2 NTs–Ag and Ag–MoS2.http://www.mdpi.com/2079-4991/8/9/666TiO2 nanotubes/Ag/MoS2photoelectrodephotoelectrocatalytic degradationtetracycline hydrochloride |
| spellingShingle | Tingting Li Zhuhong Wang Chaochao Liu Chunmin Tang Xinkai Wang Gongsheng Ding Yichun Ding Lixia Yang TiO2 Nanotubes/Ag/MoS2 Meshy Photoelectrode with Excellent Photoelectrocatalytic Degradation Activity for Tetracycline Hydrochloride Nanomaterials TiO2 nanotubes/Ag/MoS2 photoelectrode photoelectrocatalytic degradation tetracycline hydrochloride |
| title | TiO2 Nanotubes/Ag/MoS2 Meshy Photoelectrode with Excellent Photoelectrocatalytic Degradation Activity for Tetracycline Hydrochloride |
| title_full | TiO2 Nanotubes/Ag/MoS2 Meshy Photoelectrode with Excellent Photoelectrocatalytic Degradation Activity for Tetracycline Hydrochloride |
| title_fullStr | TiO2 Nanotubes/Ag/MoS2 Meshy Photoelectrode with Excellent Photoelectrocatalytic Degradation Activity for Tetracycline Hydrochloride |
| title_full_unstemmed | TiO2 Nanotubes/Ag/MoS2 Meshy Photoelectrode with Excellent Photoelectrocatalytic Degradation Activity for Tetracycline Hydrochloride |
| title_short | TiO2 Nanotubes/Ag/MoS2 Meshy Photoelectrode with Excellent Photoelectrocatalytic Degradation Activity for Tetracycline Hydrochloride |
| title_sort | tio2 nanotubes ag mos2 meshy photoelectrode with excellent photoelectrocatalytic degradation activity for tetracycline hydrochloride |
| topic | TiO2 nanotubes/Ag/MoS2 photoelectrode photoelectrocatalytic degradation tetracycline hydrochloride |
| url | http://www.mdpi.com/2079-4991/8/9/666 |
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