摘要
如何治理含油废水带来的污染已成为目前困扰全球的严峻问题。传统油水分离材料在性能、成本、制备等方面的缺陷制约了其实际应用。因此,性能优异、成本低廉、制备简便的新型油水分离材料的研究引起了广泛关注。本研究首先将粉末活性炭(AC)与具有低表面能的聚四氟乙烯浓缩分散液(PTFE)混合,制备出新型涂料(AC/PTFE);然后将它浸涂包裹在三聚氰胺海绵(MS)的骨架上,再通过简单的热处理,即可制备出新型三维油水分离材料(AC/PTFE-MS)。性能测试结果表明,所制备的AC/PTFE-MS具有超疏水性(疏水角可达165°),在300次挤压后依然保持这种性能。同时,AC/PTFE-MS具有高的吸附倍率,能够选择性吸附水上浮油与水下重油,还可实现对油水混合乳液的高效分离,是一种具有较高实际应用价值的含油废水治理材料。
How to treat the pollution caused by oily wastewater has become a serious worldwide problem.The shortcomings of traditional oil-water separation materials in terms of performance,cost,and preparation have limited their application in practice.Therefore,exploration of novel oil-water separation materials with excellent performance,low cost,and simple preparation have attracted widespread attention.In this work,a novel coating(AC/PTFE)was firstly prepared by mixing activated carbon(AC)powder with polytetrafluoroethylene concentrated dispersion(PTFE).Then melamine sponge(MS)was dip-coated with this coating,and after a simple heat treatment process,the three-dimensional oil-water separation material(AC/PTFE-MS)was prepared.The performance test results show that AC/PTFE-MS is superhydrophobic(water contact angle up to 165°),and this property can maintain even after 300 extrusions.Meanwhile,AC/PTFE-MS has high adsorption capacity and can also selectively adsorb oil or organic pollutants from water.Moreover,it can also efficiently separate oil-water emulsion.Thus,this three-dimensional oil-water separation material has application value in the actual oily wastewater treatment.
作者
刘帅卓
张颖
范雷倚
张骞
周莹
LIU Shuaizhuo;ZHANG Ying;FAN Leiyi;ZHANG Qian;ZHOU Ying(State Key Laboratory of Oil and Gas Reservoir Geology and Exploitation,,Southwest Petroleum University,Chengdu 610500,China;The Center of New Energy Materials and Technology,School of Materials Science and Engineering,Southwest Petroleum University,Chengdu 610500,China)
出处
《材料导报》
EI
CAS
CSCD
北大核心
2020年第17期17099-17104,共6页
Materials Reports
基金
国家自然科学基金石油化工联合基金(U1862111)
四川省国际科技合作与交流研发项目(2017HH0030)
四川省青年科技创新研究团队专项计划(2016TD0011)。
关键词
油水分离
三聚氰胺海绵
超疏水
乳液涂料
oil/water separation
melamine sponge
superhydrophobic
emulsion coating
