Perspective Surface characterization of thin-film composite membranes using contact angle technique: Review of quantification strategies and applications

被引:154
作者
Ismail, Md Farhad [1 ,2 ]
Islam, Muhammad Amirul [1 ]
Khorshidi, Behnam [3 ]
Tehrani-Bagha, Ali [4 ]
Sadrzadeh, Mohtada [1 ]
机构
[1] Univ Alberta, Donadeo Innovat Ctr Engn 10 367, Dept Mech Engn, Adv Water Res Lab AWRL, Edmonton, AB T6G 1H9, Canada
[2] Mil Inst Sci & Technol, Fac Sci & Engn NSE, Dhaka 1216, Bangladesh
[3] Univ Toronto, Dept Chem Engn & Appl Chem, Toronto, ON M5S 3E5, Canada
[4] Aalto Univ, Sch Chem Engn, Espoo, Finland
基金
加拿大自然科学与工程研究理事会;
关键词
Membrane surface wettability; Thin film composite membrane; Contact angle analysis; Contact angle models; Surface roughness; Surface charge; Surface energy; Interaction energy; Patterning; Responsive membrane surface; Amphiphilic membrane surface; REVERSE-OSMOSIS MEMBRANE; VAN-DER-WAALS; ATOMIC-FORCE MICROSCOPY; ACID-BASE BEHAVIOR; RO MEMBRANES; NANOFILTRATION MEMBRANES; FOULING RESISTANCE; POLYVINYL-ALCOHOL; SESSILE-DROP; SOLUTION CHEMISTRY;
D O I
10.1016/j.cis.2021.102524
中图分类号
O64 [物理化学(理论化学)、化学物理学];
学科分类号
070304 ; 081704 ;
摘要
Thin-film composite (TFC) membranes are the most widely used membranes for low-cost and energy-efficient water desalination processes. Proper control over the three influential surface parameters, namely wettability, roughness, and surface charge, is vital in optimizing the TFC membrane surface and permeation properties. More specifically, the surface properties of TFC membranes are often tailored by incorporating novel special wettability materials to increase hydrophilicity and tune surface physicochemical heterogeneity. These essential parameters affect the membrane permeability and antifouling properties. The membrane surface characterization protocols employed to date are rather controversial, and there is no general agreement about the metrics used to evaluate the surface hydrophilicity and physicochemical heterogeneity. In this review, we surveyed and critically evaluated the process that emerged for understanding the membrane surface properties using the simple and economical contact angle analysis technique. Contact angle analysis allows the estimation of surface wettability, surface free energy, surface charge, oleophobicity, contact angle hysteresis, and free energy of interaction; all coordinatively influence the membrane permeation and fouling properties. This review will provide insights into simplifying the evaluation of membrane properties by contact angle analysis that will ultimately expedite the membrane development process by reducing the time and expenses required for the characterization to confirm the success and the impact of any modification.
引用
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页数:32
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