Enhanced Utilization Efficiency of Peroxymonosulfate Via Water Vortex-driven Piezo-activation for Removing Organic Contaminants from Water

Overview

Journal Environ Sci Ecotechnol

Date 2022 Sep 26

PMID 36159730

Authors

Chuan Yu

Jie He

Shenyu Lan

Wanqian Guo

Mingshan Zhu

Affiliations

Soon will be listed here.

Abstract

The efficient activation and utilization of peroxymonosulfate (PMS) in PMS-based advanced oxidation processes is a high-priority target for the removal of organic contaminants. This work introduces a water vortex-driven piezoelectric effect from few-odd-layered MoS into the PMS activation to remove benzotriazole (BTR) and other organic contaminants from the water. Approximately 91.1% of BTR can be removed by the MoS piezo-activated PMS process with a reaction rate constant of 0.428 min, which is 2.09 times faster than the sum of the individual MoS, water vortex, and piezocatalysis rates. Meanwhile, the PMS utilization efficiency reached 0.0147 in the water vortex-driven piezo-activation system, which is 3.97 times that of the sum from the vortex/PMS and MoS/PMS systems. These results demonstrate that the presence of MoS under a water vortex can trigger a piezoelectric potential and generate abundant free electrons to activate PMS to generate various active species for degradation of organic contaminants.

Citing Articles

Piezoelectricity activates persulfate for water treatment: A perspective.

Li Z, Lan S, Zhu M Environ Sci Ecotechnol. 2023; 18:100329.

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A Novel Strategy of Combined Pulsed Electro-Oxidation and Electrolysis for Degradation of Sulfadiazine.

Ma D, Zhang B, Hu X Molecules. 2023; 28(8).

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