Research progress on preparation and photocatalytic application of TiO2 hollow microspheres
LIU Zeyu1, XIANG Yang1, PENG Zhihang2, JI Fengchun1, SUN Shuo1
1. Science and Technology on Advanced Ceramic Fibers and Composites Laboratory, College of Aerospace Science and Engineering, National University of Defense Technology, Changsha 410073, China; 2. Institute of Mechanics, Chinese Academy of Sciences, Beijing 100190, China
Abstract：TiO2 hollow microspheres, as a new type of inorganic functional material with both the intrinsic excellent properties of TiO2 and the features of hollow structures, demonstrate broad application prospects in the fields of photocatalysis, environmental governance, energy storage, and biomedicine. This paper systematically reviews six mainstream preparation methods (hard template method, Stöber method, microemulsion method, solvothermal reaction method, layer-by-layer self-assembly method, and spray reaction method) for TiO2 hollow microspheres, and provides a detailed comparative analysis of their mechanisms, advantages, and limitations. It examines the application progress in photocatalysis, including reaction mechanism, pollutant removal, and biomedical applications. It further analyzes key factors of limiting photocatalytic performance and summarizes optimization strategies such as microstructure regulation, elemental doping, and heterostructure construction. Although large-scale production and practical application of TiO2 hollow microspheres still face numerous challenges, future integration of computational simulation and artificial intelligence technologies is expected to achieve efficient, controllable, and green synthesis, advancing their transition from laboratory research to industrial application.
刘泽宇, 向阳, 彭志航, 吉冯春, 孙硕. TiO2中空微球制备及光催化应用研究进展[J]. 粉末冶金材料科学与工程, 2026, 31(1): 1-23.
LIU Zeyu, XIANG Yang, PENG Zhihang, JI Fengchun, SUN Shuo. Research progress on preparation and photocatalytic application of TiO2 hollow microspheres. Materials Science and Engineering of Powder Metallurgy, 2026, 31(1): 1-23.
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