利用溶胶-凝胶法制备了ZnFe0.25Al1.75O4尖晶石复合氧化物催化剂,并将其用于苯酚催化湿式氧化反应. 结果表明,这种催化剂对苯酚降解有较好的催化活性和稳定性. 连续反应5次后,苯酚转化率为100%, COD去除率为88.7%. 反应过程中,铁离子的溶出量先增加后减小,最终的出水金属离子浓度很低. 第5次反应后的出水铁离子浓度为2.15 mg/L, 锌离子浓度为1.53 mg/L.
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