Main Article Content
Polyvinylidene fluoride (PVDF)/poly(vinylpyrrolidone)(PVP) nanofiltration membranes containing chitosan/activated carbon/silver nanoparticles were fabricated by electrospinning. Different amount of silver nanoparticles (AgNPs) (x = 0, 0.20, 0.30, 0.40 and 0.5 %v v–1) were added to PVDF/PVP/chitosan(CS)/activated carbon (AC) solution. The composite fibrous membranes were characterized by field emission scanning electron microscopy (FESEM), UV-Vis spectroscopy (UV-Vis), and attenuated total reflection Fourier transform infrared spectroscopy (ATR-FTIR). FESEM images showed that the fibrous membranes had rough surfaces with random distribution and average fiber diameter ranging from 0.90 to 1.80 μm. For the composite fibrous membranes, average diameter increases as the amount of Ag nanoparticles increased. UV-Vis spectrum exhibited surface plasmon resonance band at 389 nm. Zetasizer measurement showed average diameter of AgNPs as 30 nm. Performances of the composite membrane were assessed by vacuum filtration. Silica (SiO2) particles with diameters of 0.10 – 0.60 μm were used to test the filtration efficiency. After filtration, silica particles with sizes ranging from 0.20 – 0.35 μm were detected, indicating that composite membranes effectively filtrated silica particles and bacteria with size over 0.35 µm. ATR-FTIR showed dominant absorption peaks corresponding to PVDF and PVP. Antibacterial activities of the composite membrane were tested against Staphylococcus aureus and Escherichia coli following the filtration method. Results confirmed excellent antibacterial performance of composite membranes containing AgNPs against Escherichia coli, with potential promising candidates for purifying drinking purified water and other applications.
This work is licensed under a Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 International License.
Copyright Agreement SNRU JST << Click here
 F.E. Ahmed, B.S. Lalia, R. Hashaikeh, A review on electrospinning for membrane fabrication: Chalenges and application, Desalination. 356 (2015) 15 – 30.
 G.D. Kang, Y.M. Cao, Application and modification of poy (vinyllidene fluoride)(PVDF) membrane-A review, J. Membr. Sci. 463 (2014) 145 – 165.
 A.W. Jatoi, I.S. Kim, H. Ogasawara, Q.Q. Ni, Characterizations and application of CA/ZnO/AgNP composite nanofibers for sustained antibacterial properties, Mater. Sci. Eng. C. 105 (2019) 110077.
 R. Alipour, A. Khorshidi, A.F. Shojaei, F. Mashayekhi, M.J.M. Moghaddam, Skin wound healing acceleration by Ag nanoparticles embedded in PVA/PVP/Pectin/Mafenide acetate composite nanofibers, Polym. Test. 79 (2019) 106022.
 K. Li, S. Cui, J. Hu, Y. Zhou, Y. Liu, Crosslinked pectin nanofibers with well-dispersed Ag nanoparticles: Preparation and characterization, Carbohydr. Polym. 199 (2018) 68 – 74.
 A. Ali, M.A. Shahid, M.D. Hossain, M.N. Islam, Antibacterial bi-layered polyvinyl alcohol (PVA)-chitosan blend nanofibrous mat loaded with Azadirachta indica (neem) extract, Int. J. Biol. Macromol. 138 (2019) 13 – 20.
 S.M. Lamine, C. Ridha, H. M. Mahfoud, C. Mouad, B. Lotfi, A.H. Al-Dujaili, Chemical activation of an activated carbon prepared from coffee residue, Energy Procedia 50 (2014) 393 – 400.
 K. Li, D. Hou, C. Fu, K. Wang, J. Wang, Fabrication of PVDF nanofibrous hydrophobic composite membranes reinforced with fabric substrates via electrospinning for membrane distillation desalination, J. Environ. Sci. 75 (2019) 277 – 288.
 D.H. Kang, H.W. Kang, Surface energy characteristics of zeolite embedded PVDF nanofibers films with electrospinning process, Appl. Surf. Sci. 387 (2016) 82 – 88.
 Y.J. Kim, C.H. Ahn, M.O. Choi, Effect of thermal treatment on the characteristics of electrospun PVDF−silica composite nanofibrous membrane, Eur. Polym. J. 46 (2010) 1957 – 1965.
 P.K. Khanna, N. Singh, D. Kulkarni, S. Deshmukh, S. Charan, P.V. Adhyapak, Water based simple synthesis of re-dispersible silver nano-particles, Mater. Lett. 61 (2007) 3366 – 3370.
 G.L. Flower, S.V. Latha, K.V. Rao, Novel characterization of nanosilver fluid through ultrasonic studies supported by UV–Vis spectroscopy, DLS and TEM studies, J. Mol. Liq. 221 (2016) 333 – 338.
 N. Wu, Q. Cao, X. Wang, Q. Chen, Study of a novel porous gel polymer electrolyte based on TPU/PVdF by electrospinning technique, Solid State Ion. 203 (2011) 42 – 46.
 C. Peng, G. Li, D.l. Geng, M. Shang, Z. Hou, J. Lin, Fabrication and luminescence properties of one-dimensional ZnAl2O4 and ZnAl2O4: A3+ (A = Cr, Eu, Tb) microfibers by electrospinning method, Mater. Res. 47 (2012) 3592 – 3599.
 C. Peng, G. Li, D.l. Geng, M. Shang, Z. Hou, J. Lin, Fabrication and luminescence properties of one-dimensional ZnAl2O4 and ZnAl2O4: A3+ (A = Cr, Eu, Tb) microfibers by electrospinning method, Mater. Res. Bull. 47 (2012) 3592 – 3599.
 A.M. Zahari, C.W. Shuo, P. Sathishkumar, A.R.M. Yusoff, F.L. Gu, N.A. Buang, L. Woei-Jyec, R.J. Gohari, Z. Yusop, A reusable electrospun PVDF-PVP-MnO2 nanocomposite membrane for bisphenol A removal from drinking water, J. Environ. Chem. Eng. 6 (2018) 5801 – 5811.
 M.B. Stie, M. Jones, H.O. Sørensen, J. Jacobsen, I.S. Chronakis, H.M. Nielsen, Acids ‘generally recognized as safe’ affect morphology and biocompatibility of electrospun chitosan/polyethylene oxide nanofibers, Carbohydr. Polym. 215 (2019) 253 – 262.
 J.A. Wahab, I.S. Kim, Q.Q. Ni, A comparative study on synthesis of AgNPs on cellulose nanofibers by thermal treatment and DMF for antibacterial activities, Mater. Sci. Eng. C. 98 (2019) 1179 – 1195.
 R. Li, Z. Cheng, X. Yu, S. Wang, Z. Han, L. Kang, Preparation of antibacterial PCL/PVP-AgNP Janus nanofibers by uniaxial electrospinning, Mater. Lett. 254 (2019) 206 – 209.
 S. Calamak, E.A. Aksoy, N. Ertas, C. Erdogdu, M. Sagıroglu, K. Ulubayram, Ag/silk fibroin nanofibers: Effect of fibroin morphology on Ag+ release and antibacterial activity, Eur. Polym. J. 67 (2015) 99 – 112.
 K. Matsuyama, K. Morotomi, S. Inoue, M. Nakashima, H. Nakashima, T. Okuyama, et al., Antibacterial and antifungal properties of Ag nanoparticle-loaded cellulose nanofiber aerogels prepared by supercritical CO2 drying, J. Supercrit. Fluid. 143 (2019) 1 – 7.