通过溶胶-凝胶法制备F掺杂纳米TiO2 (F-TiO2),将其负载到磁性活性碳(MAC)上,制得易回收分离的高效催化剂(F-TMAC).通过XRD、SEM、UV-Vis、XPS、VSM对样品进行表征.以合成样品为催化剂降解模拟废水活性染料艳红(X-3B),结果表明该负载型催化剂在紫外光和可见光照射下光催化效果均优于P25催化剂.0.2g负载型催化剂分别在紫外光和可见光照射下降解200 mL浓度为100 mg/L的X-3B溶液,90 min后经18W紫外光照射X-3B去除率达到99.8％; 250 W可见光照射X-3B去除率为83.1％.溶液中的复合催化剂可以用磁铁很容易分离,具有优良的重复利用性能.经5次重复试验,复合催化剂F-TMAC对X-3B的降解率仅下降了约6.0％.
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