膜蒸馏
接触角
膜
超疏水涂料
渗透
膜乳化
材料科学
海水淡化
化学工程
化学
纳米技术
色谱法
工程类
复合材料
生物化学
作者
Han Cao,Yanpeng Mao,Wenlong Wang,Yang Jin,Yibo Gao,Miaomiao Zhang,Xinbing Zhao,Jing Sun,Zhanlong Song
出处
期刊:Desalination
[Elsevier]
日期:2023-03-01
卷期号:550: 116373-116373
被引量:10
标识
DOI:10.1016/j.desal.2023.116373
摘要
Hydrophobicity is one of the key factors in determining the permeate flux of membrane distillation. To obtain a high-performance membrane for membrane distillation, a novel preparation method of a superhydrophobic membrane with dual scale hierarchical rough structure was proposed by controlling the particle size of ZIF-8. Nano and micro scale ZIF-8 particles were synthesized by exploring the particle size regulation rules and then deposited on PTFE substrates through the spray method after hydrophobic modification by POTS. The prepared ZIF-8 crystal and modified membrane were analyzed by DLS, SEM-EDS, XRD, AFM, and WCA. The water contact angle of the superhydrophobic surface under optimized experimental conditions reached 165.5°. Furthermore, membrane distillation experiments results of superhydrophobic membrane showed excellent permeate flux than commercial PTFE membrane. This research provides a promising strategy to prepare a superhydrophobic membrane and expands the possibility of MOF as a superhydrophobic coating.
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