In situ immobilization of silver nanoparticles for improving permeability, antifouling and anti-bacterial properties of ultrafiltration membrane
作者： Lichuan Huang , Song Zhao , Zhi Wang , Junhui Wu , Jixiao Wang
DOI: 10.1016/J.MEMSCI.2015.10.055
关键词: Thermogravimetric analysis 、 Chemical engineering 、 X-ray photoelectron spectroscopy 、 Membrane 、 Polysulfone 、 Silver nanoparticle 、 Aqueous solution 、 Analytical chemistry 、 Permeation 、 Chemistry 、 Contact angle
摘要: In this work, silver nanoparticles (AgNPs) were in situ immobilized on polysulfone (PSf) ultrafiltration membrane via polydopamine (PDA) deposition and in situ reduction of silver ammonia aqueous solution (Ag (NH 3) 2 OH). The adhesive and reductive PDA layer existing on the membrane surface induced the reduction of Ag+ on the site of surface without surface pore blockage, and also favored to the firm attachment and uniform distribution of AgNPs onto the membrane. The diameter and density of the immobilized AgNPs were …
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