Dye Removal From Reactive Dye Wastewater Using β–cyclodextrin Functionalized Polyacrylonitrile Nanofibers

Authors

Department of Textile Engineering, Isfahan University of Technology

Abstract

The main aim of this study is investigation of the reactive dye removal efficiency from wastewater by using nanofibers functionalized with β-cyclodextrin(βCD) through the immersion method. At first, polyacrylonitrile(PAN) nanofibers for the removal of three reactive dyes of CI Reactive Blue 13, C.I. Reactive Blue 21 and C.I. Reactive Red 2 from simulated wastewater were used. The dye removal efficiency for the dyes mentioned was 4.7, 22.5 and 3.4 %, respectively. Then, PAN/βCD10 and PAN/βCD50 nanofibers, which had 10 and 50 wt% of βCD, respectively, were electrospun. It was found that dye removal efficiency of PAN/βCD10 nanofiber mats for the dyes mentioned was 8.3, 28.1and 10 %, respectively. Also, dye removal efficiency of PAN/βCD50 nanofiber mats was obtained to be 31, 49 and 25%. Based on the results, dye removal efficiency of reactive dye wastewater was increased due to the increase in βCD concentration. Increasing PAN/βCD50 nanofibers weight from 0.01 to 0.1 g tended to increase dye removal efficiency of C.I Reactive Blue 21 dye wastewater from 49% to 86.4%.

Keywords