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Journal article
Mechanistic exploration and optimization of amoxicillin adsorption using discarded disposable diapers (D3) activated carbon: A multi-analytical approach
Journal of industrial and engineering chemistry (Seoul, Korea), Vol.148, pp.665-678
2025
Abstract
This study investigates the potential of activated carbon derived from discarded disposable diapers (D3AC) for cost-effective removal of amoxicillin (AMX) from water. D3AC was prepared using CO2 activation at 900 °C, yielding a high surface area (1235.32 m2/g) and total pore volume (0.88 cm3/g). Optimal AMX removal (86.52 %) was achieved under conditions of 5 g D3AC dosage, pH 4.0, and 50 min contact time, as determined by the Box-Behnken Design. Adsorption kinetics followed a pseudo-second-order model, while isotherm data aligned with the Langmuir model, indicating a maximum adsorption capacity of 208.17 mg/g at 25 °C. The adsorption mechanism involved electrostatic interactions, π–π stacking, hydrogen bonding, and pore-filling effects, enhancing AMX binding to the D3AC surface. The process was statistically robust, with a highly significant ANOVA p-value (< 0.0001) and R2 = 0.9841. This dual-purpose strategy addresses pharmaceutical pollution and waste management, offering a circular, sustainable solution to environmental challenges. By converting diaper waste into efficient adsorbents, D3AC contributes to improved water quality and public health, presenting an innovative approach to tackling global environmental and health issues. This study demonstrates the feasibility of transforming waste into high-performance materials for environmental applications.
Details
- Title
- Mechanistic exploration and optimization of amoxicillin adsorption using discarded disposable diapers (D3) activated carbon: A multi-analytical approach
- Authors/Creators
- Darween Rozehan Shah Iskandar Shah - Institute for Advanced Studies, University of Malaya, Kuala Lumpur 50603 MalaysiaNur Faradila Anuar - Universiti Teknologi MARAWan Mohd Ashri Wan Daud - Department of Chemical Engineering, Faculty of Engineering, University of Malaya, Kuala Lumpur 50603, MalaysiaAzil Bahari Alias - Universiti Teknologi MARANasrin Aghamohammadi - Curtin University
- Publication Details
- Journal of industrial and engineering chemistry (Seoul, Korea), Vol.148, pp.665-678
- Publisher
- Elsevier B.V. and the Korean Society of Industrial and Engineering Chemistry
- Number of pages
- 14
- Identifiers
- 991005736428307891
- Copyright
- © 2025 The Authors.
- Murdoch Affiliation
- School of Engineering and Energy; Surface Analysis and Materials Engineering Research Group; College of Science, Technology, Engineering and Mathematics
- Language
- English
- Resource Type
- Journal article
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- Collaboration types
- Domestic collaboration
- International collaboration
- Citation topics
- 2 Chemistry
- 2.90 Water Treatment
- 2.90.27 Adsorption
- Web Of Science research areas
- Chemistry, Multidisciplinary
- Engineering, Chemical
- ESI research areas
- Chemistry