Title: Chromium removal using adsorptive membranes composed of electrospun plasma-treated functionalized polyethylene terephthalate (PET) with chitosan
Journal: Journal of Environmental Chemical Engineering
Author: 1. Mohammad Khorram, Ahmad Mousavi, Nasir Mehranbod
Year: 2017
Address: 1. School of Chemical and Petroleum Engineering, Shiraz University, Shiraz, Iran
Abstract: Removal of hexavalent chromium from water resources via an adsorptive membrane was studied. The nanofibrous membrane was prepared by electrospinning of PET bottle wastes. The obtained nanofibrous PET was treated by cold plasma and functionalized by chitosan. Adsorptive properties of the prepared membrane were studied for removal of Cr (VI) from contaminated water. Effects of some important functionalization parameters, i.e. time and power of plasma applied and concentration of chitosan on the adsorption affinity of the functionalized membrane were investigated and optimum fabrication conditions were determined statistically by Taguchi method. The effect of water pH on adsorption capacity and reusability of the prepared membrane was evaluated. The adsorption experimental data obtained revealed that the membrane prepared by application of 900 W plasma treatment for the duration of 5 min and 1% w/v chitosan concentration had maximum Cr(VI) removal capacity (5.54 mg/50 mg membrane) at pH of 4. The obtained results showed that functionalized chitosan membrane with plasma treatment had higher adsorption capacity compared to functionalized chitosan membrane without plasma treatment and neat nanofibrous PET. Desorption and reusability experiments showed that the adsorption effectiveness of the prepared membranes could be maintained at 93.7% of fresh membrane after five cycles.
Keywords: PET bottle waste Adsorptive membrane Experimental design Taguchi method
Application: Membrane
Product Model 1: Syringe Pump (SP1000HOM)
Product Model 2: High Voltage Power Supply (HV35OC)
URL: http://www.sciencedirect.com/science/article/pii/S221334371730146X#="http://www.sciencedirect.com" & "/science/article/pii/S221334371730146X"#