PbO2电极的制备及电催化氧化降解水中间甲酚
Environmental Protection of Chemical Industry（2020）
Abstract
以钛网为基体,锡锑氧化层为底层,采用电沉积法制备了不同的PbO2电极,探索了制备条件对电极的影响.实验结果表明:在电流密度75 mA/cm2、电沉积温度85℃、电沉积时间30 min的条件下,制备的电极表面晶粒大小适中并呈现出较好的"金字塔"形貌和结晶度,具有最好的电催化氧化降解效果(间甲酚转化率85.65％、TOC去除率16.51％)和最低的能耗(0.97 kW·h/g,以TOC计),并在重复降解实验中表现出较好的稳定性.自制PbO2电极的各项指标均优于商品化PbO2电极,且TOC去除率是商品化电极的2.9倍,而能耗仅为其1/3.6.
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