Fabrication of a novel underwater-superoleophobic/hydrophobic composite membrane for robust anti-oil-fouling membrane distillation by the facile breath figures templating method
文献类型：期刊论文
| 作者 | Tang, Min; Christie, Kofi S. S.; Hou, Deyin; Ding, Chunli; Jia, Xiaolin; Wang, Jun |
| 刊名 | JOURNAL OF MEMBRANE SCIENCE
 |
| 出版日期 | 2021 |
| 卷号 | 617页码:- |
| 关键词 | Breath figures templating Membrane distillation Membrane fouling Composite membrane Anti-oil-fouling |
| ISSN号 | 0376-7388 |
| 英文摘要 | Membrane fouling is a major obstacle for the practical application of membrane distillation (MD). Herein, for robust anti-oil-fouling MD, we report a facile breath figures templating (BFT) method to develop novel composite membranes comprising a hydrophobic polytetrafluoroethylene substrate and a hydrophilic cellulose acetate coating with through-pores. The effects of dosage of cellulose acetate and template agent, and exposure time in vacuum and humid atmosphere on membrane morphology and performance were systematically studied. It was found that the higher template agent concentration slowed solvent volatilization and facilitated through-pores formation, and that humidification also facilitated through-pores formation and promoted the emergence of a spongy cross-section in the coating. As cellulose acetate concentration increased, the pore size became smaller while the porosity and underwater oleophobicity were enhanced. The fabricated PTFE-9CA composite membrane was the most effective in resisting oil-fouling as the dense and rough coating rendered the surface underwater superoleophobicity. During MD test with a saline feed containing 1000 mg/L crude oil, the permeate flux of the PTFE-9CA membrane maintained at about 16.85 kg/m(2) h, and the salt rejection was nearly 100%. The facile modification strategy to develop a composite membrane has great potential to promote MD dealing with challenging wastewaters enriched with salts and hydrophobic organics. |
| WOS研究方向 | Engineering, Chemical ; Polymer Science |
| 源URL | [http://ir.rcees.ac.cn/handle/311016/46211]  |
| 专题 | 生态环境研究中心_中国科学院饮用水科学与技术重点实验室 |
| 作者单位 | 1.Univ Chinese Acad Sci, Coll Resources & Environm, Beijing 100190, Peoples R China 2.Vanderbilt Univ, Dept Civil & Environm Engn, Nashville, TN 37235 USA 3.Hebei Univ Technol, Sch Chem Engn & Technol, Tianjin 300130, Peoples R China 4.Chinese Acad Sci, Res Ctr Ecoenvironm Sci, State Key Lab Environm Aquat Chem, Beijing 100085, Peoples R China 5.Chinese Acad Sci, Res Ctr Ecoenvironm Sci, Key Lab Drinking Water Sci & Technol, Beijing 100085, Peoples R China |
| 推荐引用方式 GB/T 7714 | Tang, Min,Christie, Kofi S. S.,Hou, Deyin,et al. Fabrication of a novel underwater-superoleophobic/hydrophobic composite membrane for robust anti-oil-fouling membrane distillation by the facile breath figures templating method[J]. JOURNAL OF MEMBRANE SCIENCE,2021,617:-. |
| APA | Tang, Min,Christie, Kofi S. S.,Hou, Deyin,Ding, Chunli,Jia, Xiaolin,&Wang, Jun.(2021).Fabrication of a novel underwater-superoleophobic/hydrophobic composite membrane for robust anti-oil-fouling membrane distillation by the facile breath figures templating method.JOURNAL OF MEMBRANE SCIENCE,617,-. |
| MLA | Tang, Min,et al."Fabrication of a novel underwater-superoleophobic/hydrophobic composite membrane for robust anti-oil-fouling membrane distillation by the facile breath figures templating method".JOURNAL OF MEMBRANE SCIENCE 617(2021):-. |
入库方式： OAI收割
来源：生态环境研究中心
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