https://scholars.lib.ntu.edu.tw/handle/123456789/576768
Title: | Facile hydrophilic modification of polydimethylsiloxane-based sponges for efficient oil–water separation | Authors: | Wang C.-J Kuan W.-F Lin H.-P Shchipunov Y.A Chen L.-J. LI-JEN CHEN |
Keywords: | Additives; Block copolymers; Contact angle; Cost effectiveness; Energy efficiency; Ethylene; Hydrophilicity; Hydrophobicity; Microchannels; Oil spills; Polydimethylsiloxane; Separation; Wastewater treatment; Water absorption; Absorption capacity; Fabrication process; Hydrophilic modification; Polydimethylsiloxane PDMS; Separation efficiency; Separation materials; Separation performance; Surface modification of PDMS; Silicones | Issue Date: | 2021 | Journal Volume: | 96 | Start page/Pages: | 144-155 | Source: | Journal of Industrial and Engineering Chemistry | Abstract: | In this study, an eco-friendly fabrication process for the hydrophilic polydimethylsiloxane (PDMS)-based sponge was proposed with the assistance of sugar templates and poly(dimethylsiloxane-b-ethylene oxide) (PDMS-b-PEO) block copolymer additives. The effects of sugar loadings and sugar particle sizes on sponge structure and separation performance were investigated. Manipulating sugar loadings exhibited a unique control over the porosity of sponge, which further influenced the absorption capacity and oil–water separation speed. Additionally, the surface modification of PDMS sponge from hydrophobic/oleophilic to hydrophilic/underwater oleophobic was achieved by incorporating PDMS-b-PEO. Such modified sponge demonstrated an underwater oil contact angle of 154° and a stable separation efficiency greater than 99.9% in the gravity-driven cycled filtration tests. The hydrophilic PDMS-b-PEO modified sponges highlighted herein reveal a promising potential for novel separation materials with energy-efficient and cost-effective features, which are ideal for oil spill clean-up events and wastewater treatment application. ? 2021 The Korean Society of Industrial and Engineering Chemistry |
URI: | https://www.scopus.com/inward/record.uri?eid=2-s2.0-85100438749&doi=10.1016%2fj.jiec.2021.01.015&partnerID=40&md5=65b4c6313dc94efd88cf7f852fd35bf2 https://scholars.lib.ntu.edu.tw/handle/123456789/576768 |
ISSN: | 1226086X | DOI: | 10.1016/j.jiec.2021.01.015 | SDG/Keyword: | [SDGs]SDG7 Additives; Block copolymers; Contact angle; Cost effectiveness; Energy efficiency; Ethylene; Hydrophilicity; Hydrophobicity; Microchannels; Oil spills; Polydimethylsiloxane; Separation; Wastewater treatment; Water absorption; Absorption capacity; Fabrication process; Hydrophilic modification; Polydimethylsiloxane PDMS; Separation efficiency; Separation materials; Separation performance; Surface modification of PDMS; Silicones |
Appears in Collections: | 化學工程學系 |
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