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Research advances in optimization and modification of TiO2-based nanomaterials
Received date: 2024-07-15
Online published: 2024-08-12
In the context of the escalating severity of global environmental pollution and energy challenges，TiO₂ nanomaterials，being a crucial semiconductor material with their outstanding photocatalytic performance，have demonstrated tremendous potential in the domains of solar energy utilization，clean energy production，and environmental pollution purification.Nevertheless，TiO₂ possesses a large band gap，with its light absorption predominantly confined to the ultraviolet region，its surface adsorption capacity being weak，and the recombination rate of photogenerated electron-hole pairs being high，leading to its restricted catalytic efficiency in visible light，which significantly constrains its extensive application in practical scenarios.An in-depth analysis of the mechanism of TiO₂ photocatalysis was conducted and the strategies such as compound modification，elemental doping，hydrogenation treatment were deliberated，and the introduction of oxygen vacancy and Ti³+ defects，which effectively enhanced the catalytic efficiency in visible light.Finally，the main directions for the optimized modification of TiO2-based nanomaterials were prospected，which could effectively broaden the application scope in the two key fields of environmental protection and energy utilization，improve its efficiency in pollutant degradation and clean energy transformation，etc，and offer ideas and references for the development of new TiO2-based nanomaterials with high catalytic activity.
WANG Xiaoyu , DU Ruicheng , LI Yan , YANG Shuyan . Research advances in optimization and modification of TiO2-based nanomaterials[J]. Inorganic Chemicals Industry, 2025 , 57(7) : 24 -34 . DOI: 10.19964/j.issn.1006-4990.2024-0405
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