One-step fabrication of multifunctional composite polyurethane spider-web-like nanofibrous membrane for water purification

Pant, Hem Raj, Kim, Han Joo, Joshi, Mahesh Kumar, Pant, Bishweshwar, Park, Chan Hee, Kim, Jeong In, Hui, K. S. ORCID: and Kim, Cheol Sang (2014) One-step fabrication of multifunctional composite polyurethane spider-web-like nanofibrous membrane for water purification. Journal of Hazardous Materials, 264. pp. 25-33. ISSN 0304-3894

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A stable silver-doped fly ash/polyurathene (Ag-FA/PU) nanocomposite multifunctional membrane is prepared by a facile one-step electrospinning process using fly ash particles (FAPs). Colloidal solution of PU with FAPs and Ag metal precursor was subjected to fabricate nanocomposite spider-web-like membrane using electrospinning process. Presence of N,N-dimethylformamide (solvent of PU) led to reduce silver nitrate into Ag NPs. Incorporation of Ag NPs and FAPs through electrospun PU fibers is proven through electron microscopy and spectroscopic techniques. Presence of these NPs on PU nanofibers introduces several potential physicochemical properties such as spider-web-like nano-neeting for NPs separation, enhanced absorption capacity to remove carcinogenic arsenic (As) and toxic organic dyes, and antibacterial properties with reduce bio-fouling for membrane filter application. Preliminary observations used for above-mentioned applications for water treatment showed that it will be an economically and environmentally friendly nonwoven matrix for water purification. This simple approach highlights new avenues about the utilization of one pollutant material to control other pollutants in scalable and inexpensive ways.

Item Type: Article
Uncontrolled Keywords: electrospinning,fly ash polyurethane,nano-netting,nanomembrane
Faculty \ School: Faculty of Science > School of Engineering
University of East Anglia Research Groups/Centres > Theme - ClimateUEA
UEA Research Groups: Faculty of Science > Research Groups > Energy Materials Laboratory
Faculty of Science > Research Groups > Emerging Technologies for Electric Vehicles (EV)
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Depositing User: Pure Connector
Date Deposited: 30 Sep 2016 16:00
Last Modified: 20 Apr 2023 00:15
DOI: 10.1016/j.jhazmat.2013.10.066

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