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Open AccessArticle

Bi-Polymer Electrospun Nanofibers Embedding Ag3PO4/P25 Composite for Efficient Photocatalytic Degradation and Anti-Microbial Activity

1
Institute of Environmental Sciences and Engineering, National University of Sciences and Technology (NUST), Islamabad 44000, Pakistan
2
Department of Environmental and Safety Engineering, Ajou University, Suwon 16499, Korea
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Department of Civil and Environmental Engineering, Rice University, 6100 Main Street MS 519, Houston, TX 77005, USA
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NSF Nanosystem Engineering Research Center for Nanotechnology Enabled Water Treatment, 6100 Main Street MS 6398, Houston, TX 77005, USA
5
Polymer Research lab, School of Chemical and Materials Engineering, National University of Sciences and Technology (NUST), Islamabad 44000, Pakistan
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Department of Chemistry, Rice University, 6100 Main Street MS 6398, Houston, TX 77005, USA
*
Author to whom correspondence should be addressed.
Catalysts 2020, 10(7), 784; https://doi.org/10.3390/catal10070784
Received: 20 April 2020 / Revised: 14 May 2020 / Accepted: 15 May 2020 / Published: 14 July 2020
Using a bi-polymer system comprising of transparent poly(methyl methacrylate) (PMMA) and poly(vinyl pyrrolidone) (PVP), a visible light active Ag3PO4/P25 composite was immobilized into the mats of polymeric electrospun nanofibers. After nanofibers synthesis, sacrificial PVP was removed, leaving behind rough surface nanofibers with easy access to Ag3PO4/P25 composite. The remarkable photocatalytic efficiency was attained using a PMMA and Ag3PO4/P25 weight ratio of 1:0.6. Methyl orange (MO) was used to visualize pollutant removal and exhibited stable removal kinetics up to five consecutive cycles under simulated daylight. Also, these polymeric nanofibers (NFs) revealed an important role in the destruction of microorganisms (E. coli), signifying their potential in water purification. A thin film fibrous mat was also used in a small bench scale plug flow reactor (PFR) for polishing of synthetic secondary effluent and the effects of inorganic salts were studied upon photocatalytic degradation in terms of total organic carbon (TOC) and turbidity removal. Lower flow rate (5 mL/h) resulted in maximum TOC and turbidity removal rates of 86% and 50%, respectively. Accordingly, effective Ag3PO4/P25 immobilization into an ideal support material and selectivity towards target pollutants could both enhance the efficiency of photocatalytic process under solar radiations without massive energy input. View Full-Text
Keywords: Ag3PO4/P25; Escherichia coli; methyl orange; nanofibers; photocatalytic degradation; plug flow reactor; inorganic salts Ag3PO4/P25; Escherichia coli; methyl orange; nanofibers; photocatalytic degradation; plug flow reactor; inorganic salts
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MDPI and ACS Style

Habib, Z.; Lee, C.-G.; Li, Q.; Khan, S.J.; Ahmad, N.M.; Jamal, Y.; Huang, X.; Javed, H. Bi-Polymer Electrospun Nanofibers Embedding Ag3PO4/P25 Composite for Efficient Photocatalytic Degradation and Anti-Microbial Activity. Catalysts 2020, 10, 784. https://doi.org/10.3390/catal10070784

AMA Style

Habib Z, Lee C-G, Li Q, Khan SJ, Ahmad NM, Jamal Y, Huang X, Javed H. Bi-Polymer Electrospun Nanofibers Embedding Ag3PO4/P25 Composite for Efficient Photocatalytic Degradation and Anti-Microbial Activity. Catalysts. 2020; 10(7):784. https://doi.org/10.3390/catal10070784

Chicago/Turabian Style

Habib, Zunaira; Lee, Chang-Gu; Li, Qilin; Khan, Sher J.; Ahmad, Nasir M.; Jamal, Yousuf; Huang, Xiaochuan; Javed, Hassan. 2020. "Bi-Polymer Electrospun Nanofibers Embedding Ag3PO4/P25 Composite for Efficient Photocatalytic Degradation and Anti-Microbial Activity" Catalysts 10, no. 7: 784. https://doi.org/10.3390/catal10070784

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