Removal of Toxic Heavy Metals Lead and Mercury from Aqueous Medium by Adsorption onto Acid Functionalized-Nanoporous Carbon/MnO2 Nano Composite

International Journal of Humanities and Social Science

© 2019 by SSRG - IJHSS Journal

Volume 6 Issue 2

Year of Publication : 2019

Authors : Shahin Pathan, Nancy Pandita

10.14445/23942703/IJHSS-V6I2P105

How to Cite?

Shahin Pathan, Nancy Pandita, "Removal of Toxic Heavy Metals Lead and Mercury from Aqueous Medium by Adsorption onto Acid Functionalized-Nanoporous Carbon/MnO2 Nano Composite," SSRG International Journal of Humanities and Social Science, vol. 6,  no. 2, pp. 28-36, 2019. Crossref, https://doi.org/10.14445/23942703/IJHSS-V6I2P105

Abstract:

Acid functionalized-Nanoporous carbon/MnO2 nanocomposite was prepared from grass clippings as carbon precursor and used for removal of Pb(II) and Hg(II) from aqueous medium. The adsorption study of Pb(II) and Hg(II) on the surface of Af-NPC/MnO2 was carried out with respect to factors such as pH, contact time and initial concentration. The kinetic study shows that the process of removal of these metal ions follow pseudo second order kinetics and the experimental equilibrium data fitted better in Langmuir isotherm model with maximum monolayer adsorption capacities of 117.64 mg/g and 90.09 mg/g for Pb(II) and Hg(II) respectively. The process of adsorption was found to be very fast compared to other adsorbents from literature. The mechanism of adsorption is also proposed based on experimental results. The results of this study indicated that Af-NPC/MnO2 is an efficient adsorbent for removal of both Pb(II) and Hg(II) from aqueous medium. It was also observed that the composite was more selective for Pb(II) comparing to Hg(II) in a binary mixture.

Keywords:

Composite, Kinetic study, Adsorption, heavy metals

References:

[1] The restriction of the use of certain hazardous substances in
electrical and electronic equipment, O. J. L, 2003, 37, pp 19–
23.
[2] L. Patrick, “Lead toxicity, a review of the literature. Part 1:
Exposure, evaluation and treatment,” Altrn. Med. Rev. vol.
11, pp. 2-22, March 2006.
[3] Chien-Wen Chen, Mu-Cheng Kuo, Jyh-Horng Wu, Ming-Shien Yen, Sing-You Lai,"Hybrid Organic-Inorganic Materials Comprising Zirconia, Silica, and Thiazole Dye by Sol-Gel Process",International Journal of Applied Chemistry,Volume 2 Issue 2,2015.
[3] C. Karthika and M. Sekar, “Removal of Hg (II) ions from
aqueous solution by Acid Acrylic Resin A Study through
Adsorption isotherms Analysis,” I. Res. J. Environment Sci.
vol. 1, pp. 34-41, August 2012.
[4] S.S. Majumdar, , S.K. Das, , R. Chakravarty, T. Saha, , T. S.
Bandyopadhyay, A. K. Guha, “A study on lead adsorption by
Mucor rouxii biomass,” Desalination, vol. 251, pp. 96-102,
2010.
[5] M. Moyo, L. Chikazaza, B. C. Nyamunda, U. Guyo, Adsorp-
tion Batch Studies on the Removal of Pb(II) Using Maiz
Maize Tassel Based Activated Carbon,” J. Chem. Article ID
508934, pp. 1-8, August 2013.
[7] P.S.V.Shanmukhi, Dr.K.Chandramouli and Dr.P.V.S.Machiraju,"Investigative Study of Structural morphology of Polypropylene and BaCo3 – Nanoparticle Composites",International Journal of Material Science and Engineering,Volume 2 Issue 3 2016.
[6] M. S. Tehrani, P. A. Azar, P. E. Namin, S. M. Dehaghi,
“Removal of Lead Ions from Wastewater Using Fnctionalized
Multiwalled Carbon Nanotubes with Tris(2-Aminoethyl)
Amine,” J. Environ. Prot. vol. 4, pp. 529-536, June 2013.
[7] K. M. Hamideh, P. Majid, “Experimental study on mercury
ions removal from aqueous solution by MnO2/CNTs nano composite adsorbent,” J. Ind. Eng. Chem. vol. 21, pp 221- 229, January 2015.
[8] P. Shahin, P. Nancy, K. Nand, “Acid functionalized-nano
porous carbon/MnO2 composite for removal of arsenic from aqueous medium,” Arab. J. Chem., in press, 2016.
[9] P. Shahin, P. Nancy, “Nanoporous carbon synthesized from
grass for removal and recovery of hexavalent chromium,”
Carbon Lett. vol. 20, pp. 10-18, October 2016.
[10] Y. H. Li, Y. Zhu, Y. Zhao, D. Wu, Z. Luan, Different
morphologies of carbon nanotubes effect on the lead removal
from aqueous solution, Diamond Relat. Mater. vol.15, pp.
90–94, 2006.
[11] L. Boszke, G. Głosińska, J. Siepak, Some Aspects of
Speciation of Mercury in a Water Environment Pol. J.
Environ. Stud. vol. 11, pp. 285-298, March 2002.
[12] X.-Y. Yu, T. Luo, Y.–X. Zhang, Y. Jia, B.-J. Zhu, X.-C.
Fu, J.-H. Liu, and X.-J. Huang, “Adsorption of Lead(II) on
O2-Plasma-Oxidized Multiwalled Carbon Nanotubes: Thermo
- dynamics, Kinetics and Desorption,” Appl. Mater. Interfa
-ces, vol., 3, pp. 2585–2593, June 2011.
[13] K.P. Lisha, S.M. Maliyekkal, T. Pradeep, “Manganese
dioxide nanowhiskers: A potential adsorbent for the removal
of Hg(II) from water,” Chem. Eng. J. vol. 160, pp. 432–439,
March 2010.
[14] E. Erena, B. Afsinb, Y. Onalc, J. Hazard. Mater. “Removal
of lead ions by acid activated and manganese oxide-coated
bentonite,” vol. 161, pp. 677–685, Jan 2009.
[15] S. G. Wang, W. X Gong, X. W. Liu, Y. W. Yao, B. Y. Gao, Q. Y. Yue, “Removal of Pb(II) from aqueous solution by adsorption on to Manganese Oxide - coated carbon nano tubes,” Sep. Purif. Technol. vol. 58, pp. 7-23, 2007. [16] L. Zhang, S. Goh, X. Hu, R. Crawford, A. Yu, Removal of aqueous toxic Hg(II) by functionalized mesoporous silica materials,” J. Chem. Technol. Biotechnol. vol. 87, pp. 1473– 1479, March 2012. [17] Y. Zhanga, D. Kogelnig, C. Morgenbesser, A. Stojanovic, F. Jirsa, I. Lichtscheidl-Schultze, R. Krachler, Y. Li, B.K. Keppler, Preparation and characterization of immobilized [A336][MTBA] in PVA–alginate gel beads as novel solid- phase extractants for an efficient recovery of Hg (II) from aqueous solutions,” J. Hazard. Mater. vol. 196, pp. 201-209, November 2011. [18] H. Mojtaba, B. Nader, Y. Habibollah, L. Qin, “Adsorption of mercury ions from synthetic and real wastewater aqueous solution by functionalized multi-walled carbon nanotube with both amino and thiolated groups,” Chem. Eng. J. vol. 237, pp. 217–228, 2014. [19] M. Aslam, S. Rais, M. Alam, A. Pugazhendi, “Adsorption of Hg(II) from Aqueous Solution Using Adulsa (Justicia adhatoda) Leaves Powder: Kinetic and Equilibrium Studies,” J. Chem. Article ID 174807, July 2013. [20] V. A. Anagnostopoulos, I.D. Manariotis, H. K. Karapanagioti Karapanagioti, C.V. Chrysikopoulos, “Removal of mercury from aqueous solutions by malt spent rootlets,” Chem. Eng. J. vol. 213, pp. 135–141, December 2012.