Park, Sang-Hee Kim, Sang Hoon Park, Sung-Joon Ryoo, Sungmin Woo, Kyoungja Lee, Jong Suk Kim, Taek-Seung Park, Hee-Deung Park, Hosik Park, You-In Cho, Jinhan Lee, Jung-Hyun 2024-01-20T03:31:44Z 2024-01-20T03:31:44Z 2021-09-05 2016-09-01 0376-7388 https://pubs.kist.re.kr/handle/201004/123690 We report on a new technique that incorporates silver nanoparticles (AgNPs) onto polyamide (PA) thin film composite (TFC) reverse osmosis membranes via arc plasma deposition (APD) to impart antibacterial properties and simultaneously improve membrane performance. APD allows the direct deposition of AgNPs under vacuum dry condition, overcoming the drawbacks of the conventional wet-chemical methods. AgNPs (similar to 7.6 nm in diameter) were uniformly distributed without aggregation throughout the PA selective layer with some partially implanted into the PA matrix. Ag loading could be tuned by simply adjusting the number of APD purse shots. The deposited AgNPs exhibited good leaching stability, presumably due to the strong Ag-PA chemical interaction and partially buried AgNP morphology. The resulting Ag-incorporated TFC (Ag-TFC) membrane showed the strong and long-lasting antibacterial properties for both gram-negative and -positive bacteria. Simultaneously, the Ag-TFC membrane exhibited an enhancement in water flux of approximately 40% without deterioration in NaCl rejection. These performance changes were tentatively attributed to the partial destruction of the PA layer under the high energetic APD condition along with the increased membrane hydrophilicity. Hence, the APD process provides a simple and effective route to modify membranes with functional NPs. (C) 2016 Elsevier B.V. All rights reserved. English ELSEVIER SCIENCE BV REVERSE-OSMOSIS MEMBRANES GRAPHENE OXIDE NANOSHEETS NANOFILTRATION MEMBRANES POLYAMIDE MEMBRANES SURFACE MODIFICATION RAMAN-SCATTERING WATER-TREATMENT HETEROGENEITY DISSOLUTION TECHNOLOGY Direct incorporation of silver nanoparticles onto thin-film composite membranes via arc plasma deposition for enhanced antibacterial and permeation performance Article 10.1016/j.memsci.2016.04.013 1 JOURNAL OF MEMBRANE SCIENCE, v.513, pp.226 - 235 JOURNAL OF MEMBRANE SCIENCE 513 226 235 scie scopus 000376301400025 2-s2.0-84966318405 Engineering, Chemical Polymer Science Engineering Polymer Science Article REVERSE-OSMOSIS MEMBRANES GRAPHENE OXIDE NANOSHEETS NANOFILTRATION MEMBRANES POLYAMIDE MEMBRANES SURFACE MODIFICATION RAMAN-SCATTERING WATER-TREATMENT HETEROGENEITY DISSOLUTION TECHNOLOGY Silver nanoparticle Polyamide thin film composite membrane Antibacterial property Biofouling Arc plasma deposition