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首页> 外文期刊>Environmental engineering and management journal >ELECTROCHEMICAL DEGRADATION AND DETERMINATION OF PENTACHLOROPHENOL FROM WATER USING TIO2-MODIFIED ZEOLITE-CARBON COMPOSITE ELECTRODES
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ELECTROCHEMICAL DEGRADATION AND DETERMINATION OF PENTACHLOROPHENOL FROM WATER USING TIO2-MODIFIED ZEOLITE-CARBON COMPOSITE ELECTRODES

机译：TiO2修饰的沸石-碳-复合电极电化学降解水中五氯酚

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摘要

In this study, TiO2-zeolite modified carbon nanotubes-epoxy (TiO2-Z-CNT-Epoxy) and TiO2-zeolite modified carbon nanofibers-epoxy (TiO2-Z-CNF-Epoxy) composite electrodes were applied for pentachlorophenol (PCP) degradation and determination in aqueous solution. The morpho-structural characterization of the composite electrodes was studied by scanning electron microscopy. The electrochemical behaviour of the electrodes was investigated under UV irradiation presence/ absence, using cyclic voltammetry (CV) in 0.1 M sodium sulphate solution supporting electrolyte. The electrooxidation and photoelectrooxidation process under potentiostatic conditions were carried out using chronoamperometry (CA). A synergy effect at 1.5 V applied potential was observed for photoelectrochemical process in comparison with each electrochemical and photocatalytic one. The optimum operation conditions in relation with electrode type, and applied potential were established.
机译：在这项研究中，TiO2-沸石改性的碳纳米管-环氧树脂（TiO2-Z-CNT-Epoxy）和TiO2-沸石改性的碳纳米纤维-环氧树脂（TiO2-Z-CNF-Epoxy）复合电极用于五氯苯酚（PCP）降解和在水溶液中测定。通过扫描电子显微镜研究了复合电极的形态结构特征。使用循环伏安法（CV）在支持电解质的0.1 M硫酸钠溶液中，在有无紫外线照射下研究了电极的电化学行为。使用计时电流法（CA）在恒电位条件下进行电氧化和光电氧化过程。与每种电化学和光催化方法相比，在光电化学过程中观察到在1.5 V施加电势下的协同效应。建立了与电极类型和施加电势有关的最佳操作条件。

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