以天然氯化血红素和咪唑为原料,制备了咪唑轴向五配位型的双配体配合物,并将其负载于羟基功能化的纤维素磁微球表面.通过紫外-可见分光光度、傅里叶变换红外光谱、透射电子显微镜、热重分析和振动样品磁强(VSM)对催化剂进行表征.在模拟太阳光照射下,以水中溶解氧为氧化剂,考察了该催化剂降解模拟废水中有机污染物对苯二酚(HQ)的性能.结果表明,在300 W氙灯照射下,当催化剂用量0.2 g/L、HQ初始浓度20 mg/L及pH值为6的条件下,6h后HQ的降解率达到96.97％,催化剂重复使用5次后,降解率仍可达92％以上.同时对该催化剂光催化降解对苯二酚的机理进行了初步研究.
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