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Antibacterial activity and heavy metal removal efficiency of electrospun medium molecular weight chitosan/nylon-6
1Department of Materials Engineering, University of Technology, Baghdad, Iraq.
Abstract:
Chitosan/nylon-6 nanofibres with antibacterial activity properties were prepared by electrospinning a chitosan/nylon-6 solution (containing medium molecular weight chitosan). Nanofibres with diameters in the range of 139-190 nm were obtained. The yield of low concentration chitosan/nylon-6 nanofibres was higher than that of high concentration chitosan/nylon-6 nanofibres. The affinity of chitosan toward lead was studied using a Pb(NO3)2 solution containing Pb(II) ions as the heavy metal solution. The rejection of lead ions by the chitosan/nylon membranes was investigated under various chitosan concentrations. The optimum removal values for Pb(NO2)3 and NaCl were found to be 74% and 71%, respectively. The nanofibres developed in this study exhibited an excellent antibacterial activity (95%) against Escherichia coli.
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