Lin Zhifeng, Jiang Xueding, Xu Weicheng, Li Fuhua, Chen Xin, Wang Hailong, Liu Si, Lu Xihong
School of Environmental and Chemical Engineering, Guangdong-Hong Kong-Macao Joint Laboratory for Intelligent Micro-Nano Optoelectronic Technology, School of Physics and Optoelectronic Engineering, Foshan University, Foshan 528000, China.
Key Laboratory of Soil Contamination Bioremediation of Zhejiang Province, Zhejiang A&F University, Hangzhou, 311300, China.
Phys Chem Chem Phys. 2024 Jan 3;26(2):662-678. doi: 10.1039/d3cp04350a.
The photocatalytic performance of nano-TiO photocatalysts in air pollutant degradation greatly depends on the adsorption of water, substrates, and intermediates. Especially under excessive humidity, substrate concentration, and intermediate concentration, the competitive adsorption of water, substrates, and intermediates can seriously inhibit the photocatalytic performance. In the past few years, extensive studies have been performed to investigate the influence of humidity, substrate concentration, and intermediates on the photocatalytic performance of TiO, and significant advances have been made in the area. However, to the best of our knowledge, there is no review focusing on the effects of water, substrate, and intermediate adsorption to date. A comprehensive understanding of their mechanisms is key to overcoming the limited application of nano-TiO photocatalysts in the photocatalytic decomposition of air pollutants. In this review, the progress in experimental and theoretical fields, including a recent combination of photocatalytic experiments and adsorption and photocatalytic simulations by density functional theory (DFT), to explore the impact of adsorption of various reaction components on nano-TiO photocatalysts is comprehensively summarized. Additionally, the mechanism and broad perspective of the impact of their adsorption on the photocatalytic activity of TiO in air treatment are also critically discussed. Finally, several solutions are proposed to resolve the current problems related to environmental factors. In general, this review contributes a comprehensive perspective of water, substrate, and intermediate adsorption toward boosting the photocatalytic application of TiO nanomaterials.
纳米TiO光催化剂在空气污染物降解中的光催化性能很大程度上取决于水、底物和中间体的吸附。特别是在湿度、底物浓度和中间体浓度过高的情况下，水、底物和中间体的竞争吸附会严重抑制光催化性能。在过去几年中，人们进行了广泛的研究来探究湿度、底物浓度和中间体对TiO光催化性能的影响，并在该领域取得了显著进展。然而，据我们所知，迄今为止还没有一篇综述聚焦于水、底物和中间体吸附的影响。全面了解它们的作用机制是克服纳米TiO光催化剂在光催化分解空气污染物方面应用受限的关键。在这篇综述中，我们全面总结了实验和理论领域的进展，包括最近将光催化实验与密度泛函理论（DFT）的吸附和光催化模拟相结合，以探究各种反应组分的吸附对纳米TiO光催化剂的影响。此外，还对它们的吸附对TiO在空气处理中的光催化活性的影响机制和广阔前景进行了批判性讨论。最后，提出了几种解决当前与环境因素相关问题的方案。总的来说，这篇综述为水、底物和中间体吸附提供了一个全面的视角，有助于推动TiO纳米材料的光催化应用。
