Ecofriendly fabrication of biopolymer-supported reverse osmosis membranes
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초록
내용
There is a growing demand for technologies to fabricate membranes in a green way. However, the critical drawbacks of natural biopolymers, such as low mechanical properties and compaction resistance, limit their applications to pressure-driven membranes such as reverse osmosis (RO) for water treatment. This study proposes an environmentally benign method to fabricate biopolymer-based membranes using natural compounds and an aqueous phase process. The fabricated green membrane exhibits high mechanical robustness that can withstand pressure-induced structural compaction while displaying high permselectivity. The biopolymer-based membrane was further utilized as a support for the fabrication of thin-film-composite (TFC) membranes, which exhibited excellent RO performance and good durability. Our strategy provides a new platform for fabricating green membranes that can be used in various separation applications.