Removal and Recovery of Brilliant Green and Brilliant Yellow using Mesoporous Aluminophosphate Molecular Sieves from Aqueous Solution

Industrial effluents discharged from dying industry is toxic for living organisms.Mesoporousaluminophosphate molecular sieve is synthesized and it is applied for the removal of Brilliant Green and Brilliant Yellow from aqueous solution. The adsorption studies are carried out at various experimental conditions like contact time, different initial dye concentrations, temperature, pH and adsorption dosage for finding the maximum adsorption. The contact time studies proved that the adsorption equilibrium attained at 20 minutes for the adsorption of BG and BY. The dye removal decreases with increased of dye concentration of BG and BY. The temperature study proved that the percentage removal of BY and BG on the adsorbent increases with increased of the temperature. The adsorbent dosage results are shown significant increase in the amount of dye removal due to increase the surface area and active sites of adsorbent. Since the negative ΔG value and positive ΔH value for the adsorption of BG and BY on adsorbent is 67.53KJmol-1 and 66.21KJmol-1 respectively. Desorption of dyes with ethanol and followed by calcination are carried out to regenerate the adsorbent.