Adsorption of Pesticides from Aqueous Solution using Kinkeliba (Combretum micranthum G.) Derived Activated Carbon

Authors

  • Murtala Maidamma Ambursa Department of Pure and Applied Chemistry, Faculty of Physical Sciences, Kebbi State University of Science and Technology Aliero, Kebbi State, Nigeria
  • Aminu Koko Rabiu Department of Pure and Applied Chemistry, Faculty of Physical Sciences, Kebbi State University of Science and Technology Aliero, Kebbi State, Nigeria
  • Sanusi Kabir Adebayo Department of Pure and Applied Chemistry, Faculty of Physical Sciences, Kebbi State University of Science and Technology Aliero, Kebbi State, Nigeria,Department of Chemical Sciences, Faculty of Science, Federal University of Kashere, Gombe State, P. M. B. 0182, Nigeria
  • Abdurrahman Bello Department of Pure and Applied Chemistry, Faculty of Physical Sciences, Kebbi State University of Science and Technology Aliero, Kebbi State, Nigeria

Keywords:

Adsorption, kinkeliba, activated carbon, pesticide, isotherm

Abstract

The utilization of kinkeliba (Combretum micranthum G.) leaves as precursor for producing activated carbon for adsorption of pesticides from aqueous solution was investigated in this study. The Combretum micranthum G. leave were carbonized at a temperature of 500 ºC for 1 h. After activation with H3PO4, the kinkeliba activated carbon (KAC) possessed bulk density of 78.6 g/dm3 and volatile component of 10%. The pH, percentage moisture and ash content of the KAC were 5.43 ± 0.36, 1.25 ± 0.04% and 5.01 ± 0.12% respectively. The adsorption of pesticides onto the prepared KAC adsorbent was optimized in terms of operating parameters (adsorbent dose, pH, contact time and initial adsorbate concentration). The results showed greater removal efficiency for the pesticides at pH 3 in 30 min. The results from isotherms studies showed that adsorption of pesticides onto KAC was best fitted to the Langmuir isotherm model (R2 > 0.99), indicating monolayer adsorption. However, Freundlich isotherm model provided the best fit for the uptake of pendimethalin onto the KAC with qe of 118.13 mg/g and R2 of 0.935 suggesting multilayer adsorption.The present work showed that the kinkeliba activated carbon can be used as a potential low-cost adsorbent for the removal of pesticides from aqueous solutions.

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Published

2022-09-16

How to Cite

Murtala Maidamma Ambursa, Aminu Koko Rabiu, Sanusi Kabir Adebayo, & Abdurrahman Bello. (2022). Adsorption of Pesticides from Aqueous Solution using Kinkeliba (Combretum micranthum G.) Derived Activated Carbon. International Journal of Sciences: Basic and Applied Research (IJSBAR), 63(2), 308–319. Retrieved from https://gssrr.org/index.php/JournalOfBasicAndApplied/article/view/14515

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Vol. 63 No. 2 (2022)

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