title: Nickel hydroxide nanosheet membranes with fast water and organics transport for molecular separation.
abstract: Two-dimensional nanosheets of late show great promise as novel materials for size-selective separation membranes of high efficiency. Herein, we demonstrate a novel laminated nanofiltration membrane for fast water purification and organic solvent nanofiltration using the 1 nm-thick and 50 nm-wide nickel hydroxide nanosheets that are facilely prepared by a green chemistry method. The resulting membranes exhibit uniform and flectional two-dimensional laminated structure. With about 1 nm high laminated channels, they allow super-fast transport of water and organic solvents. The water and organic fluxes are three orders of magnitude higher than commercially available polymeric nanofiltration membranes. In addition, the membranes have high retention for organic dyes in aqueous and organic solutions. Typically, the 3.18 μm-thick membrane with the molecular weight cut-off of 328 g mol-1has an outstanding pure water flux of 99 L m-2h-1bar-1and up to 97% rejection for direct yellow dye molecules. The newly developed nickel hydroxide nanosheets and the subsequent membranes have great potential application in water purification, organic solvent filtration and electronic devices.
authors: Department of Chemical & Biochemical Engineering, Fujian Provincial Key Laboratory of Theoretical and Computational Chemistry, College of Chemistry & Chemical Engineering, Xiamen University, Xiamen 361005, China. qgzhang@xmu.edu.cn.
authors: Yan
authors: Y
authors: Qu
authors: Department of Chemical & Biochemical Engineering, Fujian Provincial Key Laboratory of Theoretical and Computational Chemistry, College of Chemistry & Chemical Engineering, Xiamen University, Xiamen 361005, China. qgzhang@xmu.edu.cn.
authors: Qiu Gen
authors: QG
authors: Zhang
authors: Department of Chemical & Biochemical Engineering, Fujian Provincial Key Laboratory of Theoretical and Computational Chemistry, College of Chemistry & Chemical Engineering, Xiamen University, Xiamen 361005, China. qgzhang@xmu.edu.cn.
authors: Faizal
authors: F
authors: Soyekwo
authors: Department of Chemical & Biochemical Engineering, Fujian Provincial Key Laboratory of Theoretical and Computational Chemistry, College of Chemistry & Chemical Engineering, Xiamen University, Xiamen 361005, China. qgzhang@xmu.edu.cn.
authors: Run Sheng
authors: RS
authors: Gao
authors: Department of Chemical & Biochemical Engineering, Fujian Provincial Key Laboratory of Theoretical and Computational Chemistry, College of Chemistry & Chemical Engineering, Xiamen University, Xiamen 361005, China. qgzhang@xmu.edu.cn.
authors: Rui Xue
authors: RX
authors: Lv
authors: Department of Chemical & Biochemical Engineering, Fujian Provincial Key Laboratory of Theoretical and Computational Chemistry, College of Chemistry & Chemical Engineering, Xiamen University, Xiamen 361005, China. qgzhang@xmu.edu.cn.
authors: Chen Xiao
authors: CX
authors: Lin
authors: Department of Chemical & Biochemical Engineering, Fujian Provincial Key Laboratory of Theoretical and Computational Chemistry, College of Chemistry & Chemical Engineering, Xiamen University, Xiamen 361005, China. qgzhang@xmu.edu.cn.
authors: Meng Meng
authors: MM
authors: Chen
authors: Department of Chemical & Biochemical Engineering, Fujian Provincial Key Laboratory of Theoretical and Computational Chemistry, College of Chemistry & Chemical Engineering, Xiamen University, Xiamen 361005, China. qgzhang@xmu.edu.cn.
authors: Ai Mei
authors: AM
authors: Zhu
authors: Department of Chemical & Biochemical Engineering, Fujian Provincial Key Laboratory of Theoretical and Computational Chemistry, College of Chemistry & Chemical Engineering, Xiamen University, Xiamen 361005, China. qgzhang@xmu.edu.cn.
authors: Qing Lin
authors: QL
authors: Liu