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| Positively charged fibrous membrane for efficient surfactant stabilized emulsion separation via coalescence | |
| Zhang, Qian2,3; Hu, Dan1; Li, Yanxiang2; Yang, Chuanfang2 | |
| 2021-12-01 | |
| Source Publication | JOURNAL OF ENVIRONMENTAL CHEMICAL ENGINEERING
 |
| Volume | 9Issue:6Pages:11 |
| Abstract | Surfactants improve the emulsion stability and change the intrinsic wettability of the membrane surface, devastating the separation effects for oil/water emulsion. Poly (2-(methacryloyloxy) ethyl trimethylammonium chloride) (PDMC) particles was synthesized and deposited on the glass fiber membrane (GM) to fabricate positively charged membranes (GM/PDMCs). The chemical composition, structure, pore size distribution and underwater-oil wetting behavior of the membranes were investigated. The characterizations verified that PDMC particles were successfully located on the GM surface turning the smooth fiber surface into roughness, and narrowed pore size of the membrane. With the increase of PDMC deposition, the oil contact angle underwater first increased and then decreased. Afterwards, the optimal condition of separating surfactant-free emulsion for GM/PDMC membrane was established. The oil removal efficiency was beyond 98% with pressure drop below 0.45 MPa under water flux of 5928 L.m(-2).h(-1) for 8-cycle test. Furthermore, the wetting behaviors of GM and GM/PDMCs in three surfactants containing solutions were explored and inferred the real state of oil droplet contacting with the membranes which explained the separation performance. It turned out that GM/PDMC membranes achieved excellent long-term separation efficiency of 97.1% for cationic surfactant containing emulsion and effectively demulsified anionic surfactant stabilized emulsion with 97.5% separation effect. However, neutral surfactants were easily adsorbed on the surface of the membranes affecting the separation efficiency. Finally, different types of oil emulsions were examined with good performance indicating that the GM/PDMC membrane has broad application prospects. |
| Keyword | Oil/water separation Polyelectrolyte Positively charged membrane Surfactant Coalescence |
| DOI | 10.1016/j.jece.2021.106524 |
| Language | 英语 |
| WOS Keyword | IN-WATER EMULSIONS ; OIL ; ADSORPTION ; POLYMER ; FILTER ; WETTABILITY ; FILTRATION ; MECHANISM ; SILICA ; SPONGE |
| Funding Project | Scientific Technological Innovation Service Ability Construction-Basic Scientific Research Funding[PXM2020_014213_000017] ; Open Research Fund Program of Key Laboratory of Cleaner Production and Integrated Resource Utilization of China National Light Industry[CP-2020YB4] ; Research Foundation for Youth Scholars of Beijing Technology and Business University[QNJJ2020-18] |
| WOS Research Area | Engineering |
| WOS Subject | Engineering, Environmental ; Engineering, Chemical |
| Funding Organization | Scientific Technological Innovation Service Ability Construction-Basic Scientific Research Funding ; Open Research Fund Program of Key Laboratory of Cleaner Production and Integrated Resource Utilization of China National Light Industry ; Research Foundation for Youth Scholars of Beijing Technology and Business University |
| WOS ID | WOS:000711637800003 |
| Publisher | ELSEVIER SCI LTD |
| Citation statistics | |
| Document Type | 期刊论文 |
| Identifier | http://ir.ipe.ac.cn/handle/122111/50894 |
| Collection | 中国科学院过程工程研究所 |
| Corresponding Author | Hu, Dan |
| Affiliation | 1.Beijing Technol & Business Univ, Sch Light Ind, Key Lab Cleaner Prod & Integrated Resource Utiliz, Beijing 100048, Peoples R China 2.Chinese Acad Sci, Inst Proc Engn, CAS Key Lab Green Proc & Engn, Beijing 100190, Peoples R China 3.Univ Chinese Acad Sci, Beijing 100049, Peoples R China |
| Recommended Citation GB/T 7714 | Zhang, Qian,Hu, Dan,Li, Yanxiang,et al. Positively charged fibrous membrane for efficient surfactant stabilized emulsion separation via coalescence[J]. JOURNAL OF ENVIRONMENTAL CHEMICAL ENGINEERING,2021,9(6):11. |
| APA | Zhang, Qian,Hu, Dan,Li, Yanxiang,&Yang, Chuanfang.(2021).Positively charged fibrous membrane for efficient surfactant stabilized emulsion separation via coalescence.JOURNAL OF ENVIRONMENTAL CHEMICAL ENGINEERING,9(6),11. |
| MLA | Zhang, Qian,et al."Positively charged fibrous membrane for efficient surfactant stabilized emulsion separation via coalescence".JOURNAL OF ENVIRONMENTAL CHEMICAL ENGINEERING 9.6(2021):11. |
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