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Piezo-activation of peroxymonosulfate for benzothiazole removal in water.
Journal of Hazardous Materials ( IF 12.2 ) Pub Date : 2020-03-02 , DOI: 10.1016/j.jhazmat.2020.122448 Shenyu Lan 1 , Yanxi Chen 1 , Lixi Zeng 1 , Haodong Ji 2 , Wen Liu 2 , Mingshan Zhu 1
Journal of Hazardous Materials ( IF 12.2 ) Pub Date : 2020-03-02 , DOI: 10.1016/j.jhazmat.2020.122448 Shenyu Lan 1 , Yanxi Chen 1 , Lixi Zeng 1 , Haodong Ji 2 , Wen Liu 2 , Mingshan Zhu 1
Affiliation
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Piezoelectricity, as a kind of physical phenomenon, is a coupling between a material's mechanical and electrical behavior. Herein, the local accumulated charges on the surface of piezoelectric material were used to break OO bond of peroxymonosulfate (PMS) to induce its activation for the benzothiazole (BTH) removal. Taking BaTiO3 as a model piezocatalyst, up to 97 % of BTH was degraded within 30 min in BaTiO3/PMS/force system, which was respective 40 %, 79 %, 83 % higher than that in BaTiO3/force piezocatalysis, force/PMS oxidation, and BaTiO3/PMS adsorption. A significant synergistic effect was observed since the reaction rate constant of BaTiO3/PMS/force was 3 times higher than the sum of those later three processes. The possible activated mechanism was proposed based on reactive species analysis, DFT calculation and LCMS determination. The stability of the piezocatalyst and the treatment performance for real wastewater were studied to investigate the potential in practical applicability. All the results demonstrated that the BaTiO3 piezoelectricity can efficiently activate PMS to enhance BTH removal, which is a promising strategy for PMS activation, as well as a valuable insight for the piezoelectrical application in wastewater remediation.
中文翻译：
过氧单硫酸盐的压电活化，用于去除水中的苯并噻唑。
压电是一种物理现象，是材料的机械和电气行为之间的耦合。在本文中，压电材料表面上的局部累积电荷用于破坏过氧单硫酸盐（PMS）的OO键，以诱导其活化，从而去除苯并噻唑（BTH）。以BaTiO3为模型压电催化剂，BaTiO3 / PMS / force系统在30分钟内降解了高达97％的BTH，分别比BaTiO3 / force压电催化，force / PMS氧化分别高40％，79％，83％。和BaTiO3 / PMS吸附。由于BaTiO3 / PMS /力的反应速率常数比后三个过程的总和高3倍，因此观察到了显着的协同作用。基于反应物种分析，DFT计算和LCMS测定，提出了可能的活化机理。研究了压电催化剂的稳定性和对实际废水的处理性能，以研究其在实际应用中的潜力。所有结果表明，BaTiO3压电性可以有效地激活PMS以增强BTH的去除，这是PMS激活的一种有前途的策略，也是压电在废水修复中的应用的宝贵见解。
更新日期：2020-03-03
中文翻译：
过氧单硫酸盐的压电活化，用于去除水中的苯并噻唑。
压电是一种物理现象，是材料的机械和电气行为之间的耦合。在本文中，压电材料表面上的局部累积电荷用于破坏过氧单硫酸盐（PMS）的OO键，以诱导其活化，从而去除苯并噻唑（BTH）。以BaTiO3为模型压电催化剂，BaTiO3 / PMS / force系统在30分钟内降解了高达97％的BTH，分别比BaTiO3 / force压电催化，force / PMS氧化分别高40％，79％，83％。和BaTiO3 / PMS吸附。由于BaTiO3 / PMS /力的反应速率常数比后三个过程的总和高3倍，因此观察到了显着的协同作用。基于反应物种分析，DFT计算和LCMS测定，提出了可能的活化机理。研究了压电催化剂的稳定性和对实际废水的处理性能，以研究其在实际应用中的潜力。所有结果表明，BaTiO3压电性可以有效地激活PMS以增强BTH的去除，这是PMS激活的一种有前途的策略，也是压电在废水修复中的应用的宝贵见解。
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