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High Performance Activated Carbon Based on Date Palm Fibers for Cu2+ Removal in Water

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Abstract

The aim of the present study was to produce a date palm fibers-based activated carbon (DPFAC) using phosphoric acid as an activating agent. DPFAC has been studied as a promising adsorbent for the removal of copper ions from synthetic solutions. DPFAC characterization performed by Fourier Transform Infrared Spectroscopy (FTIR), Scanning Electron Microscopy (SEM) and Brunauer–Emmett–Teller (BET) indicated that DPFAC morphology and texture were well-developed with various surface bonds and high specific surface area and average pore diameter (834.79 m2/g, 17.48 Å, repectively). The results of the kinetic adsorption test showed that DPFAC achieved high Cu2+ removal efficiency (94.47%) at equilibrium time (60 min). The kinetic data fitted perfectly with the pseudo-second-order model. Three intra-particle diffusion steps are implicated in the adsorption of Cu2+. Solution pH has a considerable influence on Cu2+ removal efficiency. The isotherm models (Langmuir, Freundlich, Redlich-Peterson and Sips) showed an adequate fit to the experimental points, proving that the transfer of Cu2+ onto the DPFAC surface was favorable. Langmuir model provided the best fit, with a maximum adsorption capacity of 48.59 mg/g. The thermodynamic study performed between 20°C and 50°C confirmed that the adsorption process is spontaneous and endothermic, and may involve physisorption enhanced by chemisorption. Based on tested reaction parameters, it is clear that the use of date palm fibers for the preparation of DPFAC was highly effective in removing copper ions from wastewater.

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Acknowledgements

This study was performed at the LARHYSS Laboratory- University Mohamed Khider, Biskra-Algeria, and supported by the DGRSDT of the Ministry of Higher Education and Scientific Research-Algeria.

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Authors and Affiliations

  1. Industrial Chemistry Department, Research Laboratory in Subterranean and Surface Hydraulics, Mohamed Khider University, Biskra, Algeria

    Amina Soudani

  2. Civil Engineering and Hydraulic Department, Research Laboratory in Subterranean and Surface Hydraulics, Mohamed Khider University, Biskra, Algeria

    Leila Youcef & Guergazi Saadia

  3. Geotechnics and Hydraulics Department, Faculty of Civil Engineering, USTHB University, Algiers, Research Laboratory in Subterranean and Surface Hydraulics, Mohamed Khider University, Biskra, Algeria

    Soufiane Youcef

  4. Civil Engineering and Hydraulic Department, Mohamed Khider University, Biskra, Algeria

    Sara Elbahi

  5. Higher School of Agriculture of Kef (ESAK), LR14AGR04: Support for the Sustainability of Agricultural Production Systems in the North West Region, University of Jendouba, Le Kef, Tunisia

    Khaoula Toumi

  6. Department of Fuel, Nuclear Research Center of Draria CRND, Laboratory of Earthquake Engineering and Structural Dynamics, National Polytechnic School, Algiers, Algeria

    Amane Sahli

  7. Department of Agricultural Sciences, Laboratory of Promotion of Innovation in Agriculture in Arid Regions (PIAAR), Mohamed Khider University, Biskra, Algeria

    Nafissa Soudani

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  1. Amina Soudani
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Soudani, A., Youcef, L., Youcef, S. et al. High Performance Activated Carbon Based on Date Palm Fibers for Cu2+ Removal in Water. Chemistry Africa (2024). https://doi.org/10.1007/s42250-024-00974-7

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