Nik Ahmad Shafrizal, Nik Misha Adrina and Nasaruddin, Ricca Rahman and Mansor, Mariatul Fadzillah and Abd Halim, Nor Farah Huda (2025) Investigating adsorption isotherms and kinetics, and ecotoxicity of activated carbon from carbon-fiber reinforced polymer (CFRP). Chemical and Natural Resources Engineering Journal, 9 (2). pp. 70-83. E-ISSN 2637-0719
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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
| Item Type: | Article (Journal) |
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| Additional Information: | As supervisor, Dr. Ricca Rahman Nasaruddin acknowledges Nik Misha Adrina Binti Nik Ahmad Shafrizal for her contributions to sample preparation, experimental work, data collection, analysis, and co-writing the draft of the article for her final-year project during her bachelor’s degree. Dr. Ricca Rahman Nasaruddin also acknowledges Dr. Mariatul Fadzillah Mansor for her contribution in co-writing and reviewing the final revised manuscript, and Dr. Nor Farah Huda Abd Halim for her contribution in supplying the CFRP wastes and providing insights for the CFRP properties and characterization. |
| Uncontrolled Keywords: | Carbon fibre reinforced polymer, Activated carbon, Langmuir Isotherm, Ecotoxicity, Methylene Blue |
| Subjects: | T Technology > TD Environmental technology. Sanitary engineering T Technology > TD Environmental technology. Sanitary engineering > TD172 Environmental pollution T Technology > TP Chemical technology T Technology > TP Chemical technology > TP155 Chemical engineering T Technology > TP Chemical technology > TP248.13 Biotechnology |
| Kulliyyahs/Centres/Divisions/Institutes (Can select more than one option. Press CONTROL button): | Kulliyyah of Engineering > Department of Biotechnology Engineering Kulliyyah of Engineering > Department of Manufacturing and Materials Engineering |
| Depositing User: | Dr Ricca Rahman Nasaruddin |
| Date Deposited: | 10 Feb 2026 16:29 |
| Last Modified: | 10 Feb 2026 16:29 |
| Queue Number: | 2026-02-Q2109 |
| URI: | http://irep.iium.edu.my/id/eprint/127391 |
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