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| Spherical MoS2/WO3 Composite Semiconductor:Preparation and Photocatalytic Performance for RhB |
| Author Name | Affiliation | E-mail | | HOU Jing-Jing | MicroNano System Research Center, College of Information Engineering & Key Lab of Advanced Transducers and Intelligent Control System(Ministry of Education), Taiyuan University of Technology, Taiyuan 030024, China | | | ZHAO Qing-Hua | MicroNano System Research Center, College of Information Engineering & Key Lab of Advanced Transducers and Intelligent Control System(Ministry of Education), Taiyuan University of Technology, Taiyuan 030024, China | zhaoqinghua218@163.com | | LI Ting-Yu | MicroNano System Research Center, College of Information Engineering & Key Lab of Advanced Transducers and Intelligent Control System(Ministry of Education), Taiyuan University of Technology, Taiyuan 030024, China | | | HU Jie | MicroNano System Research Center, College of Information Engineering & Key Lab of Advanced Transducers and Intelligent Control System(Ministry of Education), Taiyuan University of Technology, Taiyuan 030024, China | | | LI Peng-Wei | MicroNano System Research Center, College of Information Engineering & Key Lab of Advanced Transducers and Intelligent Control System(Ministry of Education), Taiyuan University of Technology, Taiyuan 030024, China | | | LI Gang | MicroNano System Research Center, College of Information Engineering & Key Lab of Advanced Transducers and Intelligent Control System(Ministry of Education), Taiyuan University of Technology, Taiyuan 030024, China | ligang4122001@gmail.com |
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| Abstract: MoS2/WO3 composite photocatalyst was synthesized by a hydrothermal method. The morphology and structure of samples were respectively characterized by SEM, TEM, XRD, Raman, BET and DRS. Compared with pure WO3 and flaky MoS2/WO3, the results show that spherical MoS2/WO3 photocatalysts possess higher photocatalytic efficiency for RhB. For the spherical MoS2/WO3 composite semiconductor, the effect of MoS2 loading content (0.5%, 1%, 2%, 5%, 10%) on the photocatalytic degradation of RhB was investigated. The results show that the catalytic effect is the best when the content of MoS2 is 2%. At the same time, the effect of pH (pH=1, 3, 7, 11) on the photocatalytic activity was studied. The results show that the degradation rate is the highest at pH=6. When the amount of catalyst is 1 g·L-1, the degradation rate of RhB reaches 96.6% after 30 min. The transient photocurrent of spherical MoS2/WO3 is 0.050 6 mA·cm-2, which is increased by a factor of 2.4 compared with that of WO3. After five cycles of stability test, the spherical MoS2/WO3 composite semiconductor catalyst can maintain a high degradation rate of 90%. |
| Keywords: MoS2/WO3 heterojunction photocatalysis degradation RhB |
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| HOU Jing-Jing,ZHAO Qing-Hua,LI Ting-Yu,HU Jie,LI Peng-Wei,LI Gang.Spherical MoS2/WO3 Composite Semiconductor:Preparation and Photocatalytic Performance for RhB[J].Chinese Journal of Inorganic Chemistry,2017,33(9):1527-1536. |
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