期刊
SCIENCE OF THE TOTAL ENVIRONMENT
卷 659, 期 -, 页码 20-32出版社
ELSEVIER SCIENCE BV
DOI: 10.1016/j.scitotenv.2018.12.333
关键词
MoS2/Ag2S/Ag; Z-scheme; Photocatalytic; Water disinfection; Tetracycline hydrochloride
资金
- National Key R&D Project of China [2017YFC0505901]
- National Natural Science Foundation of China [21403230]
- 135 Breading Project of Chinese Academy of Sciences (Northeast Institute of Geography and Agroecology) [Y6H2081001]
- Excellent Young Scientists Foundation of the Northeast Institute of Geography and Agroecology [DLSYQ14001]
- Project of Science and Technology Development Plan of Jilin Province [20160520025JH]
- Education Department of Jilin province 13th Five-Year Science and Technology Research project [2016-382]
- Youth Science Foundation of Changchun University of Science and Technology University [XQNJJ-2016-07]
Flower-like MoS2/Ag2S/Ag nanocomposites have been elaborately designed and synthesized successfully for the first time. The prepared MoS2/Ag2S/Ag nanocomposites as a novel photocatalysts present effective photocatalytic performance for the photodegradation of congo red (CR), tetracycline hydrochloride (TC-HCl) and disinfection for Pseudomonas aeruginosa (P. aeruginosa). For the photodegradation of TC-HCl, the effect of the pH of the initial solution and photocatalysts dosage was investigated. Furthermore, intermediates of TC-HCl degradation were verified by GC-MS analysis and the possible pathway of the photodegradation was also proposed. The electron paramagnetic resonance (EPR) technique and trapping experiments verified the electron transport path is Zscheme system (PS-C-PS). Among them, Ag as an electron mediator enhanced the electron transmission rate and accelerated the separation efficiency of photogenerated carriers. (c) 2018 Published by Elsevier B.V.
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