https://scholars.lib.ntu.edu.tw/handle/123456789/598255
標題: | Removal of Ionic Dyes by Nanofiber Membrane Functionalized with Chitosan and Egg White Proteins: Membrane Preparation and Adsorption Efficiency | 作者: | Chen Y.-S Ooi C.W Show P.L Hoe B.C Chai W.S Chiu C.-Y Wang S.S.-S Chang Y.-K. STEVEN SHENG-SHIH WANG |
關鍵字: | Cationic and anionic dyes;Chitosan;Egg white proteins;Protein modified nanofiber membrane;Removal;Adsorption;Alkalinity;Desorption;Dyes;Efficiency;Membranes;Nanofibers;Scanning electron microscopy;Sodium chloride;Stripping (dyes);Thermogravimetric analysis;Wastewater treatment;Acid orange 7;Functionalized;Ionic dyes;Nanofiber membrane;Performance;Polyacrylonitrile nanofibre;Toluidine blue O;Proteins | 公開日期: | 2022 | 卷: | 12 | 期: | 1 | 來源出版物: | Membranes | 摘要: | Electrospun polyacrylonitrile (PAN) nanofiber membrane was functionalized with chi-tosan and proteins for use in the treatment of dye-containing wastewater. The PAN nanofiber membrane was subjected to alkaline hydrolysis, before being grafted with chitosan and subsequently the proteins from chicken egg white. The resultant nanofiber membrane (P-COOH-CS-CEW) was com-prehensively characterized using thermogravimetric analysis, Fourier-transform infrared spectros-copy, and scanning electron microscopy. The efficiency of P-COOH-CS-CEW in removing cationic dye toluidine blue O (TBO) and anionic dye acid orange 7 (AO7) in aqueous solution was evaluated. Based on the performance of model fitting, Langmuir and pseudo-second-order kinetic model could be used to describe the performance of P-COOH-CS-CEW in the removal of TBO (pH 10) and AO7 (pH 2) from the dye solutions. The adsorbed TBO and AO7 dyes can be completely desorbed by an elution solution made of 50% (v/v) ethanol and 1 M sodium chloride. After five consecutive adsorp-tion-desorption cycles, the efficiency of dye removal by P-COOH-CS-CEW was maintained above 97%. ? 2022 by the authors. Licensee MDPI, Basel, Switzerland. |
URI: | https://www.scopus.com/inward/record.uri?eid=2-s2.0-85122217087&doi=10.3390%2fmembranes12010063&partnerID=40&md5=8c5c87e6f5d1b7b0f00a7b96c22b7f02 https://scholars.lib.ntu.edu.tw/handle/123456789/598255 |
ISSN: | 20770375 | DOI: | 10.3390/membranes12010063 |
顯示於: | 化學工程學系 |
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