TiO2是一种高效的光催化剂,为解决TiO2纳米颗粒从悬浮体系中分离回收难的问题,可将其包覆于磁性微球之外,借助于磁场的作用实现快速有效分离.简要介绍了磁载核壳型TiO2复合光催化剂的基本概念、分类及制备方法.根据磁载复合光催化剂的核壳之间是否包覆结合层,将其分为直接包覆磁载TiO2光催化剂和非直接包覆磁载TiO2光催化剂.磁载TiO2复合光催化剂的制备方法有溶胶-凝胶法、均匀沉淀法、微乳液法、原位生长法以及微波水热法等.还介绍了磁载核壳型TiO2复合光催化剂在水处理方面的应用,并且对其未来的发展前景进行了展望.
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