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You searched for: Author yufeng Remove constraint Author: yufeng Publication Year 2016 Remove constraint Publication Year: 2016 Subject artificial membranes Remove constraint Subject: artificial membranes
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1. Microporous CA/PVDF membranes based on electrospun nanofibers with controlled crosslinking induced by solvent vapor

Author:
Zhang, Yufeng,   et al.   ; Liu, Chunling; Li, Xianfeng; Liu, Tao; Liu, Zhen; Li, Nana; Xiao, Changfa; Feng, Xianshe;     Show all 8 Authors
Source:
Journal of membrane science 2016 v.512 pp. 1-12
ISSN:
0376-7388
Subject:
artificial membranes; cellulose acetate; crosslinking; emulsions; exposure duration; filtration; nanofibers; porosity; porous media; solvents; strength (mechanics); vapors
Abstract:
... In this study, a small amount of polyvinylidenefluoride (PVDF) was incorporated into cellulose acetate (CA) to electrospin CA/PVDF composite nanofiber membranes, followed by exposure to solvent vapor for crosslinking. Under controlled solvent vapor environment, the surfaces of the nanofibers were partially “melt,” and the contact points among the nanofibers formed physical crosslinks. It was demon ...
DOI:
10.1016/j.memsci.2016.03.062

2. Batch process of polymer-enhanced ultrafiltration to recover mercury (II) from wastewater

Author:
Zhang, Yufeng,   et al.   ; Huang, Yifeng; Du, Jennifer; Lawless, Darren; Feng, Xianshe;     Show all 5 Authors
Source:
Journal of membrane science 2016 v.514 pp. 229-240
ISSN:
0376-7388
Subject:
aqueous solutions; artificial membranes; batch systems; equations; fouling; mercury; models; polyacrylic acid; polyethyleneimine; solutes; ultrafiltration; viscosity; wastewater
Abstract:
... The removal of mercury (II) from water by polymer-enhanced ultrafiltration (PEUF) was carried out using polyethylenimine (PEI), polyvinylamine (PVAm) and poly(acrylic acid) (PAA) as the metal-binding polymers. All three water-soluble polymers had strong interactions with mercury (II) in aqueous solutions, and a high mercury rejection was achieved with PEUF. At a given polymer dosage, the permeate ...
DOI:
10.1016/j.memsci.2016.04.060