工业水处理 ›› 2020, Vol. 40 ›› Issue (4): 6-11. doi: 10.11894/iwt.2019-0311

• 专论与综述 • 上一篇    下一篇

核壳型磁性TiO2纳米微球制备及在水处理中的应用

曹家炜1(),刘海成1,2,*(),徐乐中1,陈卫2   

  1. 1. 苏州科技大学环境科学与工程学院, 江苏苏州 215009
    2. 河海大学浅水湖泊综合治理与资源开发教育部重点实验室, 江苏南京 210098
  • 收稿日期:2020-02-14 出版日期:2020-04-20 发布日期:2020-04-21
  • 通讯作者: 刘海成 E-mail:763027601cjw@sina.com;hhua306@sohu.com
  • 作者简介:曹家炜(1995—  ),硕士研究生。电话:15501695771, E-mail:763027601cjw@sina.com
  • 基金资助:
    国家自然科学基金重点项目(51438006);中央高校基本科研业务费专项(2017B20514)

Preparation of core-shell magnetic TiO2 nanospheres and its application in water treatment

Jiawei Cao1(),Haicheng Liu1,2,*(),Lezhong Xu1,Wei Chen2   

  1. 1. College of Environmental Science and Engineering, Suzhou University of Science and Technology, Suzhou 215009, China
    2. Key Laboratory of Integrated Regulation and Resources Development on Shallow Lakes, Ministry of Education, Hohai University, Nanjing 210098, China
  • Received:2020-02-14 Online:2020-04-20 Published:2020-04-21
  • Contact: Haicheng Liu E-mail:763027601cjw@sina.com;hhua306@sohu.com

摘要:

纳米TiO2微球作为光催化剂具有降解速度快、效率高、降解完全等特点,受到广泛关注。在纳米复合材料中引入磁性材料,通过外加磁场可实现快速分离,获得更有效、环保的水处理工艺。对国内外磁性二氧化钛微球制备工艺的研究现状进行综述,总结了液相法中不同制备方法对微球形貌、结构特征的影响,比较其优缺点,详细阐述了不同性能的磁性二氧化钛微球在水体净化、染料废水处理方面的应用现状。指出其在制备及应用领域的不足,并展望了磁性二氧化钛微球在水处理领域的发展前景。

关键词: TiO2, 核壳, 磁性微球, 纳米材料, 水处理

Abstract:

As a photocatalyst, nano TiO2 microspheres have the characteristics of fast degradation, high efficiency and complete degradation, which have attracted extensive attention. By introducing a magnetic material into the nanocomposites, rapid separation can be achieved by applying an external magnetic field, and a more efficient and environmentally friendly water treatment process can be obtained. The research status of magnetic titanium dioxide microsphere preparation process is reviewed, the effects of different preparation methods on microspherical appearance and structural characteristics in the liquid method are summarized, and their advantages and disadvantages are compared. The application status of magnetic titanium dioxide microspheres with different properties on water purification and dye wastewater treatment is described in detail. Finally, the shortcomings in the preparation and application fields are pointed out, and the development prospect of magnetic titanium dioxide microspheres in the field of water treatment is prospected.

Key words: TiO2, core-shell, magnetic microsphere, nano material, water treatment

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