Removal and Recovery of Brilliant Green and Brilliant Yellow using Mesoporous Aluminophosphate Molecular Sieves from Aqueous Solution
J. Environ. Nanotechnol., Volume 8, No 1 (2019) pp. 68-74
Abstract
Industrial effluents discharged from the dying industry are toxic for living organisms. Mesoporous as well as nanoporous aluminophosphate molecular sieves were synthesized and applied for the removal of Brilliant Green (BG) and Brilliant Yellow (BY) from aqueous solution. The adsorption studies were carried out at various experimental conditions like contact time, initial dye concentration, temperature, pH and adsorption dosage for finding the maximum adsorption. The contact time studies have proved that the adsorption equilibrium was attained at 20 minutes for the adsorption of BG and BY. The dye removal has decreased with an increase in dye concentration of BG and BY. The temperature study has proved that the percentage removal of BG and BY on the adsorbent increased with the increase in temperature. The adsorbent dosage results have shown a significant increase in the amount of dye removal due to an increase in the surface area and active sites of the adsorbent. The negative ΔG value and positive ΔH value for the adsorption of BG and BY on adsorbent were 67.53 kJmol-1 and 66.21 kJmol-1, respectively. Desorption of dyes with ethanol, followed by calcination, was carried out to regenerate the adsorbent.
Full Text
Reference
AL-Degs, Y. S., El–Barghouthi, M. I., el-sheik, A. H. and Walke, G. M., Effect of Solution pH, ionic strength and temperature on adsorption behavior of reactive dyes on activated carbon, J. Dyes and Pigments, 77(1), 16-23(2007).
https://doi.org/10.1016/j.dyepig.2007.03.001
Baroni, L., Cenci, L., Tettamanti, M. and Berati, M., Evaluating the environmental impact of various dietary patterns combined with different food production systems, Eur. J. Clin. Nutr., 61(2), 279-286(2007).
https://doi.org/10.1038/sj.ejcn.1602522
Gharbani, P., Tabatabai, S. M. and Mehrizad, A., Removal of Congo red from textile wastewater by ozonation , J. Environ. Sci. Technol., 5(4), 495-500(2008).
https://doi.org/10.1007/BF03326046
Jayarajan, M., Arunachalam, R. and Annadurai, G., Agriculture wastes of Jackfruit Peel NanoPorous adsorbent for removal of Rhodamine Dye, Asian J. of appl. Sci., 4(3), 263-270(2011).
https://doi.org/10.3923/ajaps.2011.263.270
Royer, B., Cardoso, F. N., Lima, E.C., Vaghetti, J. C. P., Applications of Brazilian – Pine Fruit shell in Natural and Carbonized Forms as Adsorbents to Removal of Methylene Blue from Aqueous Solutions – Kinetic and Equilibrium Study, J. Hazar. Mat., 164(2-3), 1213-1222(2009).
https://doi.org/10.1016/j.jhazmat.2008.09.028
Wang, S. and Li, H., Kinetic modelling and mechanism of dye adsorption on unburned carbon, Dyes Pigments,72(3), 308-314(2007).
