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Kwon, Young-Nam
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dc.citation.startPage 126702 -
dc.citation.title CHEMICAL ENGINEERING JOURNAL -
dc.citation.volume 405 -
dc.contributor.author Ray, Saikat Sinha -
dc.contributor.author Dangayach, Raghav -
dc.contributor.author Kwon, Young-Nam -
dc.date.accessioned 2023-12-21T16:18:05Z -
dc.date.available 2023-12-21T16:18:05Z -
dc.date.created 2020-11-16 -
dc.date.issued 2021-02 -
dc.description.abstract With the emergence of membrane fouling as a prominent issue in long-term MD performance, it has become imperative to manufacture superhydrophobic membranes with antibacterial properties. In this study, a novel superhydrophobic and antibacterial membrane is fabricated using trichloro(1H,1H,2H,2H-perfluorooctyl)silane (TPFOS) and titanium dioxide nanoparticles (TiO2-NPs) as chemical modifiers. The virgin PVDF membrane was pre-treated using PEG-co-PMAA, followed by plasma treatment, to enhance the -COOH and -OH groups on the top layer and promote formation of coordinate bonds on the membrane surface to TiO2. TPFOS was used to impart a superhydrophobic behavior to the titanium-enriched membrane surface. Membrane characteristics were investigated using SEM-EDS, FT-IR, AFM, XPS, porosimetry, and tensile strength analysis. The PVDF/PP-PT/Ti/Si (polyvinylidene difluoride/ coated PEG-co-PMAA-plasma treated/titanium nanoparticles/perfluorooctyl silane) composite membrane showed a superior contact angle of similar to 152 degrees and a better self-cleaning ability than that of the pristine PVDF membrane. Plasma treatment of the membrane results in increasing the porosity of the membrane by the mechanism of polymer ablation. Furthermore, the superhydrophobic membrane displayed superior performance due to enhanced water flux and improved salt rejection over long-term DCMD operation. It also possessed excellent antibacterial properties, exhibiting a bacterial reduction of similar to 99% when tested against Escherichia coli (E. coli) and Staphylococcus aureus (S. aureus). This investigation demonstrates a simple approach to design multifunctional membranes showing anti-wetting, anti-bio-fouling, self-cleaning, and robust characteristics in MD desalination operations. -
dc.identifier.bibliographicCitation CHEMICAL ENGINEERING JOURNAL, v.405, pp.126702 -
dc.identifier.doi 10.1016/j.cej.2020.126702 -
dc.identifier.issn 1385-8947 -
dc.identifier.scopusid 2-s2.0-85090114396 -
dc.identifier.uri https://scholarworks.unist.ac.kr/handle/201301/48761 -
dc.identifier.url https://www.sciencedirect.com/science/article/pii/S1385894720328308?via%3Dihub -
dc.identifier.wosid 000623316100001 -
dc.language 영어 -
dc.publisher ELSEVIER SCIENCE SA -
dc.title Surface engineering for anti-wetting and antibacterial membrane for enhanced and fouling resistant membrane distillation performance -
dc.type Article -
dc.description.isOpenAccess FALSE -
dc.relation.journalWebOfScienceCategory Engineering, Environmental; Engineering, Chemical -
dc.relation.journalResearchArea Engineering -
dc.type.docType Article -
dc.description.journalRegisteredClass scie -
dc.description.journalRegisteredClass scopus -
dc.subject.keywordAuthor Membrane distillation -
dc.subject.keywordAuthor Membranes -
dc.subject.keywordAuthor Superhydrophobic -
dc.subject.keywordAuthor Antibacterial effect -
dc.subject.keywordAuthor Desalination -

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