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DOI: https://doi.org/10.4491/eer.2019.090
Molecularly engineered switchable photo-responsive membrane in gas separation for environmental protection
Aishah Rosli, and Siew Chun Low
Biomass School of Chemical Engineering Campus, Universiti Sains Malaysia, Seri Ampangan, 14300 Nibong Tebal S.P.S. Penang, Malaysia
Corresponding Author: Aishah Rosli ,Tel: +604-599-6412, Fax: +604-599-6908, Email: aishahrosli@usm.my (Rosli), chsclow@usm.my (Low)
Siew Chun Low ,Tel: +604-599-6412, Fax: +604-599-6908, Email: aishahrosli@usm.my (Rosli), chsclow@usm.my (Low)
Received: March 5, 2019;  Accepted: June 10, 2019.
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In recent years, stimuli-responsive materials have garnered interest due to their ability to change properties when exposed to external stimuli, making it useful for various applications including gas separation. Light is a very attractive trigger for responsive materials due to its speedy and non-invasive nature as well as the potential to reduce energy costs significantly. Even though light is deemed as an appealing stimulus for the development of stimuli-responsive materials, this avenue has yet to be extensively researched, as evidenced by the fewer works done on the photo-responsive membranes. Of these, there are even less research done on photo-responsive materials for the purpose of gas separation, thus, we have collected the examples that answer both these criteria in this review. This review covers the utilisation of photo-responsive materials specifically for gas separation purposes. Photo-chromic units, their integration into gas separation systems, mechanism and research that have been done on the topic so far are discussed.
Keywords: Gas separation | Membrane technology | Photo-responsive | Stimuli-responsive
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