制备了Ru(0.7)Si(0.3)O2/Ti电极,并以该电极作为氧化阳极,不锈钢为阴极,电催化氧化降解废水中硝基苯.实验结果表明,当硝基苯初始质量浓度为220 mg/L时,最佳条件为:电流密度25 ×10(-3)A/cm2;Na2SO4作为电解质时加入量为8 g/L;溶液初始pH=2.在此最佳条件下,硝基苯去除率大于85%,TOC去除率大于50%,表明Ru(0.7)Si(0.3)O2/Ti阳极能有效去除废水中有机污染物;对中间产物的检测结果表明,硝基苯的降解是阴阳两极协同作用的结果.
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