A prudent approach for the removal of copper (II) and cadmium (II) ions from aqueous solutions using indigenous Mactra aequisulcata shells

Main Article Content

Syed Muhammad Rehan Ullah
http://orcid.org/0000-0002-4543-1942
Erum Zahir
https://orcid.org/0000-0002-9063-2153
Muhammad Asif Asghar
https://orcid.org/0000-0003-0260-0109

Abstract

In this study, the raw seashells of Mactra aequisulcata, of class Bivalvia and phylum Mollusca were employed as an adsorbent to remove copper (II) and cadmium (II) metal ions from aqueous solution. The characterization of shells was performed using FTIR, EDX and SEM, BET isotherm and point of zero charge (pHpzc). Batch experiments were performed to assess various factors on the biosorption efficiency. Maximum adsorption of both metals ions conveniently found at 0.4 g L-1 adsorbent dose, pH 5 and at 303 K. Maximum biosorption capacities for Cu2+ and Cd2+ were 59.57 and 38.12 mg g-1, respectively. The Langmuir isotherm model was found to be the best fit for the acquired equilibrium data. Thermodynamic and kinetic parameters presented that the process was feasible, exothermic and followed pseudo-first order.

Article Details

How to Cite
[1]
S. M. Rehan Ullah, E. Zahir, and M. A. Asghar, “A prudent approach for the removal of copper (II) and cadmium (II) ions from aqueous solutions using indigenous Mactra aequisulcata shells”, J. Serb. Chem. Soc., p. -, Apr. 2021.
Section
Environmental Chemistry
Author Biography

Erum Zahir, Department of Chemistry, University of Karachi, Karachi−75270, Sindh−74200, Pakistan

Dr. Erum Zahir is a Professor at the Department of Chemistry, University of Karachi. Her research work focuses on Physicochemical properties of oil extracts and their Kinetics and Thermodynamics study, Neurochemistry, Electro-Instrumental techniques; Analytical Chemistry; Environmental pollution monitoring and assessment; Metals in environment and Biology; Multimedia application in Chemistry Teaching; Environmental Hydrochemistry; Persistent Organic Pollutants (POPs). She is a member of Chemical Society of Pakistan, Systemic Approach to Teaching and Learning Chemistry Club (PS-SATLC) & Chemistry Alumni Welfare Association-Karachi University (CAWA-KU).

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