Development of Sulfonated Graphene Oxide Polyamide Thin-Film Composite Membranes for Forward Osmosis
首发时间:2018-05-28
Abstract:A novel thin-film composite (TFC) membrane by integrating sulfonated graphene oxides (SGO) in its active layer was fabricated with great potential for use in forward osmosis (FO). The SGO was effectively synthesized from graphene oxide (GO)using diazonium salt of the sulfanilic acid, as it possesses high hydrophilic nature, which in turn imparts enhanced desalination capacity for TFC-FO membranes. The structure and properties of TFC, GO- and SGO-incorporated TFC membranes (TFC, GTFC, and STFC) were characterized by ATR-FTIR, SEM, and AFM respectively, and SGO incorporation was proven to be successful. Osmotic performance tests showed that STFC-FO membranes achieved higher water flux and reverse salt flux selectivity than those of GTFC-FO and TFC-FO membranes. The best STFC-FO membrane exhibited water flux of 27.14 LMH with the specific reverse salt flux of 0.13 g/L. ?????
keywords: Forward osmosis Sulfonated graphene Oxide Graphene oxide Thin-film nanocomposite
点击查看论文中文信息
磺化氧化石墨烯改性正渗透膜的制备及性能研究
摘要:本研究通过在活性层中掺杂磺化氧化石墨烯(SGO)制备了一种高性能的TFC正渗透膜,其在正渗透领域具有广阔的应用前景。SGO由氧化石墨烯(GO)和对笨氨基苯磺酸的重氮盐磺化合成。SGO具有高亲水性,从而可以增强TFC-FO膜的脱盐能力。通过ATR-FTIR,SEM和AFM分别对TFC,GO和SGO纳入的TFC膜(TFC,GTFC和STFC)的结构和性能进行了表征,结果表明SGO被成功的掺杂到活性层中。渗透性能测试表明,STFC-FO膜比GTFC-FO和TFC-FO膜具有更高的水通量和截盐率。最佳的STFC-FO膜的水通量为27.14LMH,反向盐通量为0.13g / L。
引用
No.****
动态公开评议
共计0人参与
勘误表
磺化氧化石墨烯改性正渗透膜的制备及性能研究
评论
全部评论0/1000