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

作者：Gao Shenghan; Gao Ruichang^*

来源：Chemical Research in Chinese Universities, 2017, 33(4): 678-683.

DOI：10.1007/s40242-017-6423-4

• Cellulose
• Ionic liquid
• TiO2 nanoparticle
• ZnO nanoparticle
• Chitosan

Antibacterial cellulose/TiO2 nanoparticles(CTM), cellulose/ZnO nanoparticles(CZM) and cellulose/chitosan(CCM) composite membranes were successfully prepared using ionic liquid(IL), 1-buty1-3-methylimidazolium chloride([BMILVI]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.

• 出版日期2017-8
• 单位天津大学