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Degradation mechanism of tetracycline in water by MoS2/PVDF porous membrane driven by water flow
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Yue-lu WANG1, *, Shi-kun HAI1, Jia-jun HAN2, Jin-xiao ZHANG2, Yuan-meng ZHAI2
China Environmental Science | 2025, 45(2) : 795 - 802
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China Environmental Science | 2025, 45(2): 795-802
• Water Pollution Control •
Degradation mechanism of tetracycline in water by MoS2/PVDF porous membrane driven by water flow
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Yue-lu WANG1, *, Shi-kun HAI1, Jia-jun HAN2, Jin-xiao ZHANG2, Yuan-meng ZHAI2
Affiliations
  • 1.Department of Public Discipline Teaching, Shangqiu Medical College, Henan 476000, China
  • 2.School of Materials Engineering, Henan University of Engineering, Henan 450000, China
Published: 2025-02-20
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In advanced oxidation processes (AOPs) based on peroxymonosulfate (PMS), efficient activation and utilization of PMS was considered to be an important goal for the removal of organic pollutants. The piezoelectric effect driven by water flow was introduced into PMS activation in this study, using the prepared MoS2/PVDF membrane as a piezoelectric membrane to remove tetracycline (TC) from water. The degradation efficiency of TC by MoS2/PVDF membrane was 77.9% within 60min was showed in the results, with a reaction rate constant of 0.0231min-1, which was higher than that of MoS2 (0.0135min-1) and PVDF (0.0085min-1). Sacrificial agent experiments combined with LC-MS were used to explore the intermediates of the TC degradation process and analyze the reaction mechanism. In cycling experiments, the excellent reusability and recyclability was exhibited in MoS2/PVDF membranes. These results indicated that under the mechanical vortex force of water flow, MoS2/PVDF membrane can trigger piezoelectric potential and generate abundant free electrons to activate PMS, thereby producing various active substances to degrade organic pollutants.

peroxymonosulfate  /  piezoelectric effect  /  tetracycline  /  polyvinylidene difluoride
Yue-lu WANG, Shi-kun HAI, Jia-jun HAN, Jin-xiao ZHANG, Yuan-meng ZHAI. Degradation mechanism of tetracycline in water by MoS2/PVDF porous membrane driven by water flow[J]. China Environmental Science, 2025 , 45 (2) : 795 -802 .
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Year 2025 volume 45 Issue 2
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  • Receive Date：2024-07-01
  • Online Date：2026-03-17
  • Published：2025-02-20
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  • Received：2024-07-01
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Affiliations
    1.Department of Public Discipline Teaching, Shangqiu Medical College, Henan 476000, China
    2.School of Materials Engineering, Henan University of Engineering, Henan 450000, China
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表12种不同金属材料的力学参数
科
Family		 属数
Number of
genus		 种数
Number of
species		 占总种数比例
Percentage of
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Genus		 种数
Number of
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Percentage of total
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鹅膏菌科Amanitaceae 2 11 5.26 鹅膏菌属 Amanita 10 4.78
小菇科 Mycenaceae 2 12 5.74 丝盖伞属 Inocybe 5 2.39
多孔菌科 Polyporaceae 8 14 6.70 蜡蘑属 Laccaria 5 2.39
红菇科 Russulaceae 3 23 11.00 小皮伞属 Marasmius 6 2.87
小菇属 Mycena 11 5.26
光柄菇属 Pluteus 5 2.39
红菇属 Russula 17 8.13
栓菌属 Trametes 5 2.39
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