Scaling and wetting resistant silica nanoparticle grafted multi-scale corrugated omniphobic membranes for membrane distillation
文献类型：期刊论文
| 作者 | Hu, Jiaqi2,4; Harandi, Hesam Bazargan1,2; Liu, Shan3; Zhang, Yuebiao3; He, Tao4 |
| 刊名 | DESALINATION
 |
| 出版日期 | 2024-12-21 |
| 卷号 | 592页码:9 |
| 关键词 | Membrane distillation Silica nanoparticle Multi-scale roughness Anti-scaling/anti-wetting Slippery |
| ISSN号 | 0011-9164 |
| DOI | 10.1016/j.desal.2024.118122 |
| 英文摘要 | Membrane distillation (MD) is a promising technology for wastewater treatment, but often faces significant challenges of scaling and wetting. Development of advanced omniphobic membranes has been the core research for mitigating scaling and wetting in MD. In this study, a novel fluorinated multi-scale silicon nanoparticle grafted corrugated (FSiC-PVDF) membrane (water contact angle 179.5 +/- 0.3 degrees) was prepared and explored for enhancement of anti-scaling performance by calcium sulfate and anti-wetting performance by sodium dodecylsulfate (SDS). Silica nanoparticles (SiNPs) were synthesized and covalently bonded to the surface of the corrugated membrane and the surface energy was further reduced via chemical fluorination. Flat-sheet membrane (F-PVDF) and corrugated membrane (C-PVDF) were compared. Results showed that compared to the previous study of grafting SiNPs on flat membranes directly, FSiC-PVDF exhibited superior flux (21.1 kg/(m(2)center dot h)), and it can consistently demonstrate stable water flux and quality even at high calcium sulfate and SDS concentrations. The F-PVDF experienced significant declines in performance, and the C-PVDF showed limited improvement in scaling and wetting resistance. Corrugation pattern contributed to a larger evaporation area and higher velocity near the membrane surface, thus reducing crystal deposition and heterogeneous nucleation on the surface. The combination of corrugation and SiNPs resulted in a stable Cassie-Baxter wetting state, reduced solid-liquid interface areas, and created slippage conditions that minimized the impact of contaminants on MD performance. These findings indicated that FSiC-PVDF membranes offer significant advantages for MD processes, enhancing operational stability and efficiency. |
| 资助项目 | National Natural Science Foun-dation of China[21978315] ; National Natural Science Foun-dation of China[52011530031] |
| WOS研究方向 | Engineering ; Water Resources |
| 语种 | 英语 |
| WOS记录号 | WOS:001318128900001 |
| 出版者 | ELSEVIER |
| 源URL | [http://119.78.100.198/handle/2S6PX9GI/42604]  |
| 专题 | 中科院武汉岩土力学所 |
| 通讯作者 | He, Tao |
| 作者单位 | 1.Chinese Acad Sci, Inst Rock & Soil Mech, State Key Lab Geomech & Geotech Engn, Wuhan 430071, Hubei, Peoples R China 2.Univ Chinese Acad Sci, Beijing 100049, Peoples R China 3.ShanghaiTech Univ, Sch Phys Sci & Technol, Shanghai 201210, Peoples R China 4.Chinese Acad Sci, Shanghai Adv Res Inst, Lab Membrane Mat & Separat Technol, Shanghai 201210, Peoples R China |
| 推荐引用方式 GB/T 7714 | Hu, Jiaqi,Harandi, Hesam Bazargan,Liu, Shan,et al. Scaling and wetting resistant silica nanoparticle grafted multi-scale corrugated omniphobic membranes for membrane distillation[J]. DESALINATION,2024,592:9. |
| APA | Hu, Jiaqi,Harandi, Hesam Bazargan,Liu, Shan,Zhang, Yuebiao,&He, Tao.(2024).Scaling and wetting resistant silica nanoparticle grafted multi-scale corrugated omniphobic membranes for membrane distillation.DESALINATION,592,9. |
| MLA | Hu, Jiaqi,et al."Scaling and wetting resistant silica nanoparticle grafted multi-scale corrugated omniphobic membranes for membrane distillation".DESALINATION 592(2024):9. |
入库方式： OAI收割
来源：武汉岩土力学研究所
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