Freestanding bacterial cellulose-graphene oxide composite membranes with high mechanical strength for selective ion permeation

• DOI: 10.1038/srep33185
• Publication Date: 2016-09-12T09:43:12Z
• Authors: Qile Fang; Xufeng Zhou; Wei Deng; Zhi Zheng; Zhaoping Liu
• Keywords: Bacterial Cellulose

Abstract Graphene oxide (GO) based membranes have been widely applied in molecular separation on the size exclusion effect of nanochannels formed by stacked GO sheets. However, it’s still a challenge to prepare freestanding GO-based membrane with high mechanical strength and structural stability which is prerequisite for application aqueous solution. Here, composite bacterial cellulose (BC) designed prepared. BC network provides porous skeleton spread sheets uniformly incorporates into layers, endows + well water-stability, excellent tensile strength, as improved toughness, guaranteeing its applicability water environment. The resulting exhibits obviously discrepant permeation properties different inorganic/organic ions size, particular, it can quickly separate nano-scale from angstrom-scale. Therefore, this novel considered be promising candidate applications purification, food industry, biomedicine, pharmaceutical fuel separation.