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随着经济高速发展，光催化技术由于其不仅可以制备出清洁氢能源，同时还可以降解污染物，已成为清洁能源制备和环境污染处理领域内潜在的重要技术之一。作为光催化技术的核心材料TiO2,由于其具有良好的耐光腐蚀性和催化活性已成为最具潜力的光催化剂，但传统的TiO2光催化剂存在可见光利用率低以及光生电子空穴对复合速度快等缺点，使其在光催化领域的应用受到限制。为了解决上述问题，表面改性和掺杂的方式是提高TiO2光催化活性最有效的途径。目前，二维(2D)材料由于其独特的结构和性能，已成为TiO2光催化潜在的理想载体材料，同时还可以实现其表面改性，将二者进行复合发挥其协同作用，可以显著改善TiO2的光催化性能。因此，本文以二维材料和TiO2光催化材料为中心，重点介绍了二维材料/TiO2复合材料的制备方法，并详细地介绍二维材料/TiO2复合材料的光催化机理，旨在为新型TiO2光催化剂的制备提供理论指导。
Abstract：With the rapid development of economy, photocatalysis technology has been become one of the potential important technologies in the field of clean energy preparation and environmental pollution treatment because it can not only produce clean hydrogen energy, but also degrade pollutants. As the core material of photocatalysis technology, TiO2 has become the most promising photocatalyst due to its good photo corrosion resistance and catalytic activity. However, the traditional TiO2 photocatalyst has the disadvantages of low utilization of visible light and fast recombination speed of photogenerated electron-hole pairs, which limits its application in the field of photocatalysis. In order to solve the above problems, surface modification and doping are the most effective ways to improve TiO2 photocatalytic activity. At present, two-dimensional(2D) materials have become potential ideal carrier materials for TiO2 photocatalysis due to their unique structure and performance, and they can also achieve surface modification. By combining the two to play their synergistic role, TiO2 photocatalysis performance can be significantly improved. Therefore, focusing on two-dimensional materials and TiO2 photocatalytic materials, the preparation methods of two-dimensional materials/TiO2 composites are introduced in this paper, and introduces the photocatalytic mechanism of two-dimensional materials/TiO2 composites in detail, aiming to provide theoretical guidance for the preparation of new TiO2 photocatalysts.
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基本信息:
DOI：10.13289/j.issn.1009-6264.2022-0362
中图分类号:O643.36;O644.1
引用信息:
[1]姚海伟,王荟琪,蒲卓林等.二维材料/二氧化钛复合材料的光催化研究进展[J],2023,44(02):13-29.DOI:10.13289/j.issn.1009-6264.2022-0362.
基金信息:
陕西省重点研发计划(2021GY-213;2021GY-222)