工业水处理 ›› 2024, Vol. 44 ›› Issue (1): 22-31. doi: 10.19965/j.cnki.iwt.2022-1053

• 专论与综述 • 上一篇    下一篇

新型二维层状材料MXene在光催化水处理应用中的研究进展

杨传玺1(), 刘潇广1, 高畅2, 王小宁1, 刘永林1, 董文平1, 刘琳1, 孙好芬1(), 刘长青1, 王炜亮1   

  1. 1. 青岛理工大学环境与市政工程学院, 山东 青岛 266520
    2. 青岛佳明测控科技股份有限公司, 山东 青岛 266000
  • 收稿日期:2022-12-28 出版日期:2024-01-20 发布日期:2024-01-24
  • 作者简介:

    杨传玺(1989— ),博士。E-mail:

    孙好芬,教授。E-mail:

  • 基金资助:
    国家自然科学基金项目(41672340)

Research progress of novel two-dimensional layered nanomaterials MXene-based photocatalyst in water treatment

Chuanxi YANG1(), Xiaoguang LIU1, Chang GAO2, Xiaoning WANG1, Yonglin LIU1, Wenping DONG1, Lin LIU1, Haofen SUN1(), Changqing LIU1, Weiliang WANG1   

  1. 1. School of Environmental and Municipal Engineering, Qingdao University of Technology, Qingdao 266520, China
    2. Qingdao Jiaming Measurement and Control Technology Co. , Ltd. , Qingdao 266000, China
  • Received:2022-12-28 Online:2024-01-20 Published:2024-01-24

摘要:

光催化技术可以直接利用清洁的太阳能催化降解污染物,污染物矿化程度高,在环境修复和催化领域具有显著优势。金属氧化物作为光催化剂存在禁带宽度大、空穴-电子对复合率高等缺点限制了其应用。近年来,MXene由于具有良好的电子迁移能力、环境稳定性、层结构丰富和比表面积大等特点,在作为改性金属氧化物光催化剂上具有潜在优势。首先概述了MXene的制备方法,包括氢氟酸刻蚀法、氟化物刻蚀法、碱刻蚀法、盐酸水热刻蚀法、路易斯酸刻蚀法、电化学刻蚀法、化学气沉降法以及高温分解法等;其次介绍了MXene材料表面终端活性官能团、分散性和化学稳定性;然后综述了MXene/金属氧化物光催化剂的作用机理,包括金属氧化物光催化机理、MXene/金属氧化物光催化增强机理;然后介绍了MXene/金属氧化物光催化剂在光催化降解药物和染料领域的应用以及催化稳定性,最后对MXene/金属氧化物光催化剂存在的问题进行展望,以期能够为高效光催化剂的设计和水处理应用提供理论支撑。

关键词: 光催化, 二维材料, MXene, 水处理

Abstract:

Photocatalytic technology shows significant advantages in environmental remediation and catalysis due to use clean solar energy directly and highly mineralization of pollutants. Metal oxides photocatalysts have the disadvantages of a large band gap and high hole-electron recombination. In recent years,MXene have potential applications in the modification of metal oxide with advantages of good electron transfer ability,environmental stability,rich layer structure and large specific surface area. In this paper,the preparation methods of MXene were firstly outlined,including hydrofluoric acid etching,fluoride etching,alkali etching,hydrochloric acid hydrothermal etching,Lewis acid etching,electrochemical etching,chemical vapor deposition and high temperature decomposition method. Secondly,the surface functional groups,dispersibility and chemical stability were introduced. Then,photocatalytic mechanism of MXene/metal oxide photocatalysts was reviewed,including photocatalytic mechanism of metal oxide,photocatalytic activity enhanced mechanism of MXene/metal oxide. Moreover,applications of MXene/metal oxide photocatalysts were introduced,including the photocatalytic degradation of pharmaceutical and personal care products(PPCPs) and dyes,and the photo-stability. Finally,the existing problems of MXene/metal oxide photocatalysts were prospected,which could provide the theoretical supporting for design of efficient photocatalysts and water treatment applications.

Key words: photocatalysis, 2D materials, MXene, water treatment

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