化工进展 ›› 2025, Vol. 44 ›› Issue (1): 341-353.DOI: 10.16085/j.issn.1000-6613.2023-2275

• 材料科学与技术 • 上一篇    下一篇

黑色二氧化钛纳米材料的构筑及其应用现状

刘炜1(), 张敏2, 朱照琪1, 王毅1, 梁卫东1(), 孙寒雪1()   

  1. 1.兰州理工大学石油化工学院,甘肃 兰州 730050
    2.甘肃东方钛业有限公司,甘肃 白银 730900
  • 收稿日期:2023-12-27 修回日期:2024-01-30 出版日期:2025-01-15 发布日期:2025-02-13
  • 通讯作者: 梁卫东,孙寒雪
  • 作者简介:刘炜(1999—),男,硕士研究生,研究方向为微纳孔功能材料。E-mail:2497865718@qq.com
  • 基金资助:
    甘肃省教育科技创新项目(2021CYZC-10);兰州市人才创新创业项目(2023-RC-11);甘肃省科技计划(22CX8GA121)

Preparation and current applications of black titanium dioxide nanomaterials

LIU Wei1(), ZHANG Min2, ZHU Zhaoqi1, WANG Yi1, LIANG Weidong1(), SUN Hanxue1()   

  1. 1.School of Petrochemical Engineering, Lanzhou University of Technology, Lanzhou 730050, Gansu, China
    2.Gansu Dongfang Titanium Co. , Ltd. , Baiyin 730900, Gansu, China
  • Received:2023-12-27 Revised:2024-01-30 Online:2025-01-15 Published:2025-02-13
  • Contact: LIANG Weidong, SUN Hanxue

摘要:

二氧化钛(TiO2)是典型的氧化物半导体材料,广泛应用于光催化领域,但其较宽的能量带隙限制了其在实际中的应用。黑色TiO2(B-TiO2)纳米材料通过在TiO2表面构筑结构缺陷降低带隙宽度,能够有效提高其可见光响应性能和量子效率。本文总结了B-TiO2的基本特性,包括光学性质、晶型、缺陷与微观结构性质,并对近年来B-TiO2的制备与缺陷构筑方法(如气氛焙烧法、溶胶-凝胶法、化学还原法等)进行了系统总结。同时,本文梳理了黑色TiO2性能提升策略及其在水体净化、有机物降解、能源转换及医疗等领域的应用现状。最后指出B-TiO2研究领域未来需要重点关注的几个方面为:结合理论和实验深入探讨其结构-性能之间的构效关系是合理设计B-TiO2表面缺陷、开发高效合成方法的基础,先进的表征和分析手段有待加强;在保持高活性的同时,开发结构更加稳定的B-TiO2是将其推向实际应用的重要前提;此外,交叉学科的发展应推动B-TiO2的应用范围向更多领域延伸。

关键词: 黑色二氧化钛, 光催化, 降解, 复合材料, 纳米材料

Abstract:

Titanium dioxide (TiO2) is a kind of typical semiconductor material and widely used in photocatalysis, however, its wide energy band gap limits its practical application. Black TiO2 (B-TiO2) nanomaterials can effectively improve their visible light-response performance and quantum efficiency through constructing structural defects on TiO2 surface to reduce the band gap, which has attracted great attention. This paper introduced the basic properties of B-TiO2 such as optical property, crystal types, defects and microstructures, and systematically summarized the methods of preparation and defect construction of black TiO2 in recent years, including calcination, sol-gel and chemical reduction etc. It was also summarized the improvement strategy of performance for black TiO2 and its application in water purification, medical treatment, energy conversion and other fields. Finally, the future research of B-TiO2 needed to focus on the following aspects. The building of structure-activity relationship in depth from theory and experiment was basic for reasonable design of surface defects and development of efficient synthesis methods for B-TiO2, which called for more advanced characterization and analysis tools. Besides, it was an important prerequisite to further enhance the structural stability of B-TiO2 with high activity for practical application. The development of interdisciplinary disciplines should promote the applications of B-TiO2 to various fields.

Key words: black titanium dioxide, photocatalysis, degradation, composites, nanomaterials

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