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 900W plasma treatment for the duration of 5min and 1% w/v chitosan concentration had maximum Cr(VI) removal capacity (5.54mg/50mg 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.
Sign-in/Register to access full text options 
Free) 
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a call
