SCI和EI收录∣中国化工学会会刊

Chinese Journal of Chemical Engineering ›› 2019, Vol. 27 ›› Issue (6): 1416-1428.DOI: 10.1016/j.cjche.2019.02.003

• Special Issue: Separation Process Intensification of Chemical Engineering • Previous Articles     Next Articles

Fabrication of biomaterial/TiO2 composite photocatalysts for the selective removal of trace environmental pollutants

Yilin Zhao, Yaoqiang Wang, Gang Xiao, Haijia Su   

  1. Beijing Key Laboratory of Bioprocess, Beijing Advanced Innovation Center for Soft Matter Science and Engineering(BAIC-SM), Beijing University of Chemical Technology, Beijing 100029, China
  • Received:2018-09-30 Revised:2019-01-11 Online:2019-08-19 Published:2019-06-28
  • Contact: Gang Xiao, Haijia Su
  • Supported by:
    Supported by the National Natural Science Foundation of China (21525625, 21838001), the National Basic Research Program (973 Program) of China (2014CB745100), the (863) High Technology Project of China (2013AA020302), the Chinese Universities Scientific Fund (JD1417).

Fabrication of biomaterial/TiO2 composite photocatalysts for the selective removal of trace environmental pollutants

Yilin Zhao, Yaoqiang Wang, Gang Xiao, Haijia Su   

  1. Beijing Key Laboratory of Bioprocess, Beijing Advanced Innovation Center for Soft Matter Science and Engineering(BAIC-SM), Beijing University of Chemical Technology, Beijing 100029, China
  • 通讯作者: Gang Xiao, Haijia Su
  • 基金资助:
    Supported by the National Natural Science Foundation of China (21525625, 21838001), the National Basic Research Program (973 Program) of China (2014CB745100), the (863) High Technology Project of China (2013AA020302), the Chinese Universities Scientific Fund (JD1417).

Abstract: Trace environmental pollutants have become a serious problem with special attention on the hazardous heavy metals, refractory organics, and pathogenic microorganisms. With coupling biosorption and photocatalysis to develop biomaterial/TiO2 composite photocatalysts is a promising method to remove these trace pollutants because of the synergistic effect. Biomaterials provide multiple function groups which can selectively and efficiently enrich trace pollutants onto the surface of the photocatalysts, thus facilitating the following transformation mediated by TiO2 photocatalysis. Biomaterials can also help the dispersion and recovery of TiO2, or even modify the band structure of TiO2. The fabrication of chitosan/TiO2, cellulose/TiO2, as well as other biomaterial/TiO2 composite photocatalysts is discussed in detail in this review. The application significance of these composite photocatalysts for the selective removal of trace pollutants is also addressed. Several problems should be solved before the realistic applications can be achieved as discussed in the final section.

Key words: Biomaterial, TiO2, Composite photocatalysts, Trace pollutants

摘要: Trace environmental pollutants have become a serious problem with special attention on the hazardous heavy metals, refractory organics, and pathogenic microorganisms. With coupling biosorption and photocatalysis to develop biomaterial/TiO2 composite photocatalysts is a promising method to remove these trace pollutants because of the synergistic effect. Biomaterials provide multiple function groups which can selectively and efficiently enrich trace pollutants onto the surface of the photocatalysts, thus facilitating the following transformation mediated by TiO2 photocatalysis. Biomaterials can also help the dispersion and recovery of TiO2, or even modify the band structure of TiO2. The fabrication of chitosan/TiO2, cellulose/TiO2, as well as other biomaterial/TiO2 composite photocatalysts is discussed in detail in this review. The application significance of these composite photocatalysts for the selective removal of trace pollutants is also addressed. Several problems should be solved before the realistic applications can be achieved as discussed in the final section.

关键词: Biomaterial, TiO2, Composite photocatalysts, Trace pollutants