INVESTIGATING ADSORPTION ISOTHERMS AND KINETICS, AND ECOTOXICITY OF ACTIVATED CARBON FROM CARBON-FIBER REINFORCED POLYMER (CFRP)

Authors

  • Nik Misha Adrina Nik Ahmad Shafrizal Department of Chemical Engineering and Sustainability, Kulliyyah of Engineering, IIUM
  • Ricca Rahman Nasaruddin Department of Biotechnology Engineering, Faculty of Engineering, International Islamic University Malaysia, Jalan Gombak, 53100 Kuala Lumpur, Malaysia.
  • Mariatul Fadzillah Mansor Department of Chemical Engineering and Sustainability, Kulliyyah of Engineering, IIUM
  • Nor Farah Huda Abd Halim Department of Materials and Manufacturing Engineering, Kulliyyah of Engineering, International Islamic University. Malaysia (IIUM), Jalan Gombak, 53100 Kuala Lumpur, Malaysia

DOI:

https://doi.org/10.31436/cnrej.v9i2.130

Keywords:

Carbon fibre reinforced polymer, Activated carbon, Langmuir Isotherm, Ecotoxicity, Methylene Blue

Abstract

This study presents the synthesis of activated carbon (AC) from carbon fiber reinforced polymer (CFRP) waste as a sustainable adsorbent for wastewater treatment. Characterization by FTIR, SEM, and XRD confirmed the development of functional groups, a porous morphology, and a predominantly amorphous carbon structure in AC, with minor graphitic domains in CFRP. Adsorption tests using the methylene blue (MB) dye showed good performance, with the Langmuir isotherm resulting in the best-fitted model (adjusted R² = 0.88), indicating monolayer adsorption and pseudo-first-order kinetics (adjusted R² = 0.96). Thus, confirming concentration-dependent adsorption of MB by AC, produced from CFRP. Ecotoxicity evaluation using brine shrimp assay revealed an LC50 of 33.11 mg (or 3311 mg/L), suggesting moderate toxicity. These findings demonstrate that AC derived from CFRP exhibits strong adsorption efficiency with acceptable ecological risk, providing a viable pathway to convert CFRP waste into valuable materials for environmental remediation.

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References

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Published

2025-12-28

How to Cite

Nik Ahmad Shafrizal, N. M. A. ., Nasaruddin, R. R., Mansor, M. F. ., & Abd Halim, N. F. H. (2025). INVESTIGATING ADSORPTION ISOTHERMS AND KINETICS, AND ECOTOXICITY OF ACTIVATED CARBON FROM CARBON-FIBER REINFORCED POLYMER (CFRP). Chemical and Natural Resources Engineering Journal (Formally Known As Biological and Natural Resources Engineering Journal), 9(2), 70–83. https://doi.org/10.31436/cnrej.v9i2.130

Issue

Vol. 9 No. 2 (2025): Chemical and Natural Resources Engineering Journal (Formally known as Biological and Natural Resources Engineering Journal)

Section

Environmental Engineering

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