Adsorption of Acid Blue 41 Dye from Wastewater by Polyamide Nanofibers
Wang Y, et al. Autex Research Journal, 2013, 13(3), 95-98.
Acid blue 41 is a synthetic dye that is widely used in various industries, including textiles, printing inks, and plastics. Polyamide 6 nanofiber membrane (P6NM) has been explored for the adsorption removal of acid dyes from wastewater, such as acid blue 41 (AB41), acid blue 78 (AB78), and acid yellow 42 (AY42). The results showed that AB41 had the highest values of sorption capacity compared with AB78 and AY42; this was because of the highest saturation value (S) compared with the other two. The adsorption of Acid Blue 41 follows the Langmuir adsorption isotherm.
Equilibrium sorption studies
· Ten dye solutions of 10 mg/L, of the same volume of 100 ml, were prepared such that in the first solution one piece of P6NM was used, in the second solution, two pieces, the same was applied up to ten pieces of P6NM.
· The flasks were sealed for 10 days at a temperature of 20±1°C until equilibrium was reached. At time t = 0 and equilibrium, the dye concentrations of the solutions were measured by the spectrometer.
· These data were used to calculate the adsorption capacity, CS, of the adsorbent. Finally, CS was plotted against equilibrium concentration, CL.