Hydrodynamic cavitation-enhanced photocatalytic activity of P-doped TiO(2) for degradation of ciprofloxacin: Synergetic effect and mechanism.
Hydrodynamic cavitation-enhanced photocatalytic activity of P-doped TiO(2) for degradation of ciprofloxacin: Synergetic effect and mechanism.
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DOI：
10.1016/j.ultsonch.2022.106265
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发表时间：
2023-01
影响因子：
8.4
通讯作者：
Jin, Nanxun
中科院分区：
文献类型：
--
作者：
Chen, Mengfan;Zhuang, Kai;Sui, Jiayi;Sun, Congting;Song, Youtao;Jin, Nanxun
A hydrodynamic cavitation assisted photocatalytic set-up has been designed. The activity of P-TiO2 was enhanced via microjets sustained clean catalyst surface. The HC provids P-TiO2 with larger surface area (from 113.1 to 144.3 m2/g). The HC provids P-TiO2 with higher dispersion and more active sites. HC + UV+P-TiO2 degradation was 90.63 % compared to 20.37 % (HC) and 55.7 % (UV+P-TiO2). Hybrid methods with an enhanced oxidation capacity have been proposed for the removal of organic contaminants based on combining hydrodynamic cavitation (HC) with advanced oxidation processes (AOPs). In this study, we utilize the synergetic effect between photocatalytic processes and HC to strengthen ciprofloxacin (CIP) degradation by P-doped TiO2 catalysts. In comparison to a degradation ratio of 20.37 % in HC and 55.7 % in P-TiO2-based photocatalytic processes alone, the CIP degradation ratio reached as high as 90.63 % in HC-assisted photocatalytic processes with the optimal experimental parameters. The mechanic microjets treatment originated from HC make P-TiO2 nano photocatalysts with significantly increased surface area, smaller particle sizes, cleaner surface and improved dispersion, which were found using SEM, TEM, and BET analysis. Possible degradation mechanisms and reaction pathways of CIP during hybrid HC + photocatalytic processes were explored by coupling free radical capture experiments and liquid chromatography-mass spectrometry . This hybrid HC + photocatalytic technique has a potential application in the treatment of antibiotic sewage at the industrial level.
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影响因子：
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作者：
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通讯作者：
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影响因子：
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作者：
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通讯作者：
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