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以自制的粒径均一的分散P(St-AA)聚合物微球为模板,制备了P(St-AA)/Fe_2O_3纳米颗粒,热处理后获得纳米磁性空心微球;在用溶胶-凝胶法制备La掺杂TiO_2基础上,制备了以磁性空心微球为载体的空心磁性微球负载La掺杂TiO_2。紫外光催化实验结果表明,该产品降解亚甲基蓝的效率优于同等条件制备的La掺杂TiO_2。
P (St-AA) / Fe 2 O 3 nanoparticles were prepared by using self-made dispersed P (St-AA) polymer microspheres with uniform particle size as template. Nanometer magnetic hollow microspheres were prepared by sol- La-doped TiO 2 was prepared on the basis of which hollow magnetic microspheres loaded with magnetic hollow microspheres were prepared. The results of UV-catalyzed experiments show that the product degrades methylene blue more efficiently than the La-doped TiO 2 prepared under the same conditions.