MoS_(2)/RGO复合分离膜的制备及其水处理性能  

Preparation and water treatment performance of MoS_(2)/RGO composite separation membranes

作　　者：刘璇[1,2] 李明阳[1,2] 余翔 黄朝[1,2] LIU Xuan;LI Mingyang;YU Xiang;HUANG Chao(College of Engineering Science and Technology,Shanghai Ocean University,Shanghai 201306,China;Key Laboratory for Thin Film and Microfabrication of Ministry of Education,Shanghai Jiaotong University,Shanghai 200240,China)

机构地区：[1]上海海洋大学工程学院,上海201306 [2]上海交通大学薄膜与微细加工技术教育部重点实验室,上海200240

出　　处：《膜科学与技术》2023年第4期145-153,158,共10页Membrane Science and Technology

基　　金：国家自然科学基金项目(51005145,51075258);上海市科学技术委员会项目(19DZ2254800)。

摘　　要：为了解决氧化石墨烯(GO)膜不稳定性和低水通量的问题,利用水热法制备了二硫化钼(MoS_(2))纳米片与还原氧化石墨烯(RGO),并通过真空抽滤法在聚醚砜支撑膜上制备出MoS_(2)/RGO复合膜.结果表明,当MoS_(2)与RGO的质量比为9∶10时,所制备的复合膜表现出高达35 L/(m^(2)·h·MPa)的水渗透率,为纯氧化石墨烯膜的10.6倍,对硫酸钠的截留率达到86.7%,并且对甲基蓝以及刚果红的截留率分别为97.8%、98.6%,同时,对不同pH和不同浓度刚果红溶液的截留率均达到95%以上.此外,经测试该膜具有较好的稳定性,在水处理分离复合膜中具有巨大的应用潜力.In order to solve the problems of instability and low water flux of graphene oxide(GO)membranes,molybdenum disulfide(MoS_(2))nanosheets with reduced graphene oxide(RGO)were prepared by hydrothermal method in this paper,and MoS_(2)/RGO composite membranes were prepared on polyethersulfone supported membranes by vacuum filtration.The results showed that when the mass ratio of MoS_(2)to RGO was 9:10,the prepared composite membranes exhibited a pure water flux of up to 35 L/(m^(2)·h·MPa),which was 10.6 times higher than that of pure graphene oxide membranes,and achieved a retention rate of 86.7%for sodium sulfate,and 97.8%and 98.6%for methyl blue and Congo red,respectively.The retention rate of Congo red at different pH and concentrations reached over 95%.In addition,the membrane has been tested to have good stability and has great potential for application in water treatment composite membranes.

关 键 词：还原氧化石墨烯 二硫化钼 复合膜 水处理 

分 类 号：TQ028.8[化学工程]