Abstract
Graphene oxide (GO) membranes have attracted extensive interest due to their ultrathin thickness, high flux, pore size tunability, superior flexibility, and energy-efficient properties for transporting ions and molecules through the unique 2D channels. Nevertheless, membrane fouling leading to membrane blocking and poor water flux of GO membranes during long-term use are major obstacles for water treatment or desalination applications. In this work, Ag doped GO/titanate nanotube (Ag/GO/TNT) membranes with enhanced visible light degradation ability were fabricated by a single-step procedure to resolve the fouling problem via integration of photocatalysis with membrane filtration. The results show that the Ag nanoparticles could be highly dispersed on the surface of GO and TNTs. And, the as-prepared Ag/GO/TNT membranes exhibited reasonable ability on photocatalytic degradation of Methylene Blue under visible light. We found that 90% of MB could be effectively degraded after 120 min irradiation with 8 mg of ...
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