TiO<,2>核壳材料作为光催化剂具有活性高、稳定性强、普适性广、应用前景广阔等优点而引起了人们广泛的兴趣.综述了近年来TiO<,2>核壳材料用作光催化剂的最新研究成果,主要包括TiO<,2>与金属、半导体、磁性材料等复合所得核壳材料及TiO<,2>自身组成核壳材料在光催化领域的应用,指出TiO<,2>与金属、半导体复合或离子掺杂等所得核壳材料都不同程度地提高了其催化性能;与磁性材料复合时虽然易于分离但是活性不理想;当以TiO<,2>为核时,通过控制合成条件可以制备出孔径不同的TiO<,2>壳层,该类核壳材料可以选择性地降解有机物.最后指出深入探讨TiO<,2>核壳材料光催化机理、开发易回收高效TiO<,2>催化剂及寻找简易制备TiO<,2>核壳材料的方法是未来TiO<,2>核壳材料研究的重要方向.
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