[an error occurred while processing this directive]

高等学校化学研究 ›› 2017, Vol. 33 ›› Issue (4): 678-683.doi: 10.1007/s40242-017-6423-4

• Articles • 上一篇    下一篇

Antibacterial Cellulose Composite Membranes Prepared in Ionic Liquid via Phase Inversion Method

GAO Shenghan, GAO Ruichang   

  1. School of Chemical Engineering and Technology, Tianjin University, Tianjin 300072, P. R. China
  • 收稿日期:2016-10-13 修回日期:2017-03-17 出版日期:2017-08-01 发布日期:2017-05-08
  • 通讯作者: GAO Ruichang E-mail:tjugaorc@sina.com

Antibacterial Cellulose Composite Membranes Prepared in Ionic Liquid via Phase Inversion Method

GAO Shenghan, GAO Ruichang   

  1. School of Chemical Engineering and Technology, Tianjin University, Tianjin 300072, P. R. China
  • Received:2016-10-13 Revised:2017-03-17 Online:2017-08-01 Published:2017-05-08
  • Contact: GAO Ruichang E-mail:tjugaorc@sina.com

摘要:

Antibacterial cellulose/TiO2 nanoparticles(CTM), cellulose/ZnO nanoparticles(CZM) and cellulose/chitosan(CCM) composite membranes were successfully prepared using ionic liquid(IL), 1-butyl-3-methylimidazolium chloride([BMIM]Cl), via phase inversion while[BMIM]Cl was recycled through evaporation and used to prepare cellulose membrane(CM-RILs). The pure water flux(PWF) was significantly increased via adding TiO2, ZnO and chitosan to cellulose and a perfect retention value of 67000 bovine serum albumin(BSA) was achieved in all the prepared membranes. The bacterial reduction of cellulose/TiO2 membrane, cellulose/ZnO membrane and cellulose/chitosan membrane with a blend ratio of 10:3[m(cellulose):m(additive)] was the maximum and reached 100%, 100% and 97.2% for S. aureus and 100%, 99.8% and 97.0% for E. coli, respectively. The results demonstrate that cellulose/TiO2 membrane, cellulose/ZnO membrane and cellulose/chitosan membrane can act as good antibacterial materials in water treatment, medical treatment, food industry as well as other applications.

关键词: Cellulose, Ionic liquid, TiO2 nanoparticle, ZnO nanoparticle, Chitosan

Abstract:

Antibacterial cellulose/TiO2 nanoparticles(CTM), cellulose/ZnO nanoparticles(CZM) and cellulose/chitosan(CCM) composite membranes were successfully prepared using ionic liquid(IL), 1-butyl-3-methylimidazolium chloride([BMIM]Cl), via phase inversion while[BMIM]Cl was recycled through evaporation and used to prepare cellulose membrane(CM-RILs). The pure water flux(PWF) was significantly increased via adding TiO2, ZnO and chitosan to cellulose and a perfect retention value of 67000 bovine serum albumin(BSA) was achieved in all the prepared membranes. The bacterial reduction of cellulose/TiO2 membrane, cellulose/ZnO membrane and cellulose/chitosan membrane with a blend ratio of 10:3[m(cellulose):m(additive)] was the maximum and reached 100%, 100% and 97.2% for S. aureus and 100%, 99.8% and 97.0% for E. coli, respectively. The results demonstrate that cellulose/TiO2 membrane, cellulose/ZnO membrane and cellulose/chitosan membrane can act as good antibacterial materials in water treatment, medical treatment, food industry as well as other applications.

Key words: Cellulose, Ionic liquid, TiO2 nanoparticle, ZnO nanoparticle, Chitosan