Removal of Lead from Aqueous Solution by Adsorption using Magnesium Aluminium Hydrogenphosphate Layered Double Hydroxides
Keywords:Layered Double Hydroxide (LDH), adsorption, lead removal, anion exchange,
AbstractLayered double hydroxide with molar ratio of 4 (MAN 4) was synthesized by co-precipitation and followed by hydrothermal method. The compound was then later going through ion exchange with K2HPO4 for 48 hours to produce MgAlHPO4 (MAHP 4). The solid produced were characterized using X-ray diffraction (XRD) and Fourier Transform Infrared spectroscopy (FTIR). Adsorption of lead solution by MAHP 4 was carried out using batch experiment by mixing the lead solution and the solid of layered double hydroxide. The effects of various parameters such as contact time, pH, adsorbent dosage and initial concentration were investigated. The optimum pH for lead removal was found to be at pH of 5 and the optimum time of lead removal was found at 2 hours. The isotherm data was analysed using Langmuir and the correlation coefficient of 0.998 was obtained. The maximum adsorption capacity, Qo (mg/g) of 500 mg/g was also recorded from the Langmuir isotherm. The remaining lead solution was determined by using EDXRF (Energy Dispersive X-Ray Fluorescence spectrometry) model MiniPal 4 (PAN analytical). The results in this study indicate that MAHP 4 was an interesting adsorbent for removing lead from aqueous solution.
J. Duruibe, M.O.C. Ogwuegbu, J.N. Egwurugwu, International Journal of Physical Sciences, Vol. 2(5) (2007), 112-118.
P. Sathyavisal, H. Sudrajat, N. Chanthy, S. Soknet, Journal of Applied Sciences in Environmental Sanitation, Vol. 3 (2008), 101-108
S. Arivoli, M. Hema, C. Barathiraja,Iran. J. Environ. Health. Sci. eng,Vol 5 (2008)1-10.
Y. Zheng, A. Wang, Chemical Engineering Journal 162 (2010), 186-193.
A.R. Kul, H. Koyuncu, Journal of Hazardous materials 179 (2010), 332-339.
N. Karapinar, R. Donat, Desalination 249 (2009), 123-129.
Z.R. Liu, S.Q. Zhou, Process safety and environmental protection 88 (2010), 62-66.
S.H. Lin, R.S. Juang, Journal of hazardous materials B 92 (2002), 315-326.
Y. Yasin, A.H. Abdul Malek, S. M. Sumari, Oriental Journal of Chemistry, Vol 26(4) (2010), 1293-1298.
T. Turk, I. Alp, H. Deveci, Journal of hazardous materials 171 (2009), 665-670.
L.C. Hsu, S. L. Wang, Y.M. Tzou, J.H. Chen, Journal of hazardous material 142 (2007) ,242-249.
Q. Hu, Z. Xu,S. Qiao, F. Haghseresht, M. Wilson, G.Q. Lu, Journal of Colloid and Interface Science 308 (2007),191-199.
R. Roto, F. Nindiyasari, I. Tahir, Journal of Physical science, Vol 20(2) (2009), 73-84.
I. Pavlovic, M.R. Perez, C. Barriga, M.A. Ulibarri, Applied Clay Science 43 (2009), 125-129.
A. Legrouri, Journal of materials science letters 18 (1999), 1077-1079.
M. Badreddine, M. Khaldi, A. Legrouri , A. Barroug, M. Chaouch, R.A. De, J.P. besse, Materials Chemistry and Physics 52 (1998), 235-239.
R. Donat, A. Akdogan, E. Erdem, H. Cetisli, Journal of Colloid and Interface Science, 286 (2005), 43-52.
S.A. Thayyath, S.S. Padmajan, Applied Clay Science 42 (2008), 214-223.
L. Xuefeng, H. Wanguo, X. Yingming, S. Guohong,W. Lin, S. Yang, Q. Xu,Colloids and surface a: physicochemical and engineering aspects 366 (2010), 50-57.
M. Park,C.L. Choi, Y.J. Seo, S.K. Yeo, J. Choi, S. Komarneni, J.H. Lee, Applied Clay Science 37 (2007), 143-148.
S.M.Sumari, Y. Yasin, Z .Hamzah, The Malaysian Journal of Analytical Science Vol 13 No.1 (2009), 120-128.
S. Qaiser, A.R. Saleemi,M. Umar, Electronic Journal of biotechnology ISSN (2009), 0717-3458