Hybrid activated carbon/ maltodextrin-functionalized fibrous silica for acetaminophen and amoxicillin adsorption: Advanced statistical physics modelling
A novel hybrid adsorbent of activated carbon/maltodextrin-functionalized fibrous silica (AC/KCC-1/DEX) was prepared for the efficient removal of Acetaminophen (ACE) and Amoxicillin (AMOX) from water. Comprehensive characterization via FESEM, TEM, BET, XPS, and FTIR confirmed an enhances surface prop...
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| Format: | Article |
| Language: | English |
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Elsevier Ltd
2025
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| Online Access: | http://umpir.ump.edu.my/id/eprint/44536/ http://umpir.ump.edu.my/id/eprint/44536/1/Hybrid%20activated%20carbon%20maltodextrin-functionalized%20fibrous%20silica%20for%20acetaminophen%20and%20amoxicillin%20adsorption.pdf |
| _version_ | 1848827123370819584 |
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| author | Nuramira Fateha, Sukor Rohayu, Jusoh |
| author_facet | Nuramira Fateha, Sukor Rohayu, Jusoh |
| author_sort | Nuramira Fateha, Sukor |
| building | UMP Institutional Repository |
| collection | Online Access |
| description | A novel hybrid adsorbent of activated carbon/maltodextrin-functionalized fibrous silica (AC/KCC-1/DEX) was prepared for the efficient removal of Acetaminophen (ACE) and Amoxicillin (AMOX) from water. Comprehensive characterization via FESEM, TEM, BET, XPS, and FTIR confirmed an enhances surface properties and functional corporation from supporting materials and functionalization agent. Particularly, despite significant decrease in surface area upon DEX functionalization, a remarkable enhancement in adsorption removal efficiency was observed, underscoring the pivotal role of surface chemistry over surface area alone. The AC/KCC-1/DEX exhibited 87.64 m2/g and 122.94 m2/g of micropore and mesopores surface area, respectively, along with reactive functional group of DEX such as –OH, which increase surface polarity and enables strong interactions with polar pharmaceuticals. This innovative material evinced high adsorption capacity of 87.97 mg/g and 77.31 mg/g for ACE and AMOX, respectively, achieving percentage removal of 94 % and 81 %, correspondingly. Adsorption kinetics were best described by the Elovich model, suggesting heterogenous surface interactions, while Redlich-Peterson isotherm favoured physisorption. Advanced statistical physics modelling with key steric parameters provided further mechanistic insights at a molecular level, revealing a multilayer physisorption mechanism with additional chemisorption contributions. Thermodynamic analysis supported the spontaneity and exothermic nature of the process, with negative Gibbs free energy (ΔG) and enthalpy (ΔH) values, while a negative entropy change (ΔS), proposed increased order at the solid-liquid interface, indicative of strong adsorbate-adsorbent affinity and potential chemisorption effects. This study not only demonstrates the effectiveness and adsorption behaviour of AC/KCC-1/DEX but also opens new avenues for sustainable water treatment solutions. |
| first_indexed | 2025-11-15T03:55:42Z |
| format | Article |
| id | ump-44536 |
| institution | Universiti Malaysia Pahang |
| institution_category | Local University |
| language | English |
| last_indexed | 2025-11-15T03:55:42Z |
| publishDate | 2025 |
| publisher | Elsevier Ltd |
| recordtype | eprints |
| repository_type | Digital Repository |
| spelling | ump-445362025-05-09T07:47:49Z http://umpir.ump.edu.my/id/eprint/44536/ Hybrid activated carbon/ maltodextrin-functionalized fibrous silica for acetaminophen and amoxicillin adsorption: Advanced statistical physics modelling Nuramira Fateha, Sukor Rohayu, Jusoh TP Chemical technology A novel hybrid adsorbent of activated carbon/maltodextrin-functionalized fibrous silica (AC/KCC-1/DEX) was prepared for the efficient removal of Acetaminophen (ACE) and Amoxicillin (AMOX) from water. Comprehensive characterization via FESEM, TEM, BET, XPS, and FTIR confirmed an enhances surface properties and functional corporation from supporting materials and functionalization agent. Particularly, despite significant decrease in surface area upon DEX functionalization, a remarkable enhancement in adsorption removal efficiency was observed, underscoring the pivotal role of surface chemistry over surface area alone. The AC/KCC-1/DEX exhibited 87.64 m2/g and 122.94 m2/g of micropore and mesopores surface area, respectively, along with reactive functional group of DEX such as –OH, which increase surface polarity and enables strong interactions with polar pharmaceuticals. This innovative material evinced high adsorption capacity of 87.97 mg/g and 77.31 mg/g for ACE and AMOX, respectively, achieving percentage removal of 94 % and 81 %, correspondingly. Adsorption kinetics were best described by the Elovich model, suggesting heterogenous surface interactions, while Redlich-Peterson isotherm favoured physisorption. Advanced statistical physics modelling with key steric parameters provided further mechanistic insights at a molecular level, revealing a multilayer physisorption mechanism with additional chemisorption contributions. Thermodynamic analysis supported the spontaneity and exothermic nature of the process, with negative Gibbs free energy (ΔG) and enthalpy (ΔH) values, while a negative entropy change (ΔS), proposed increased order at the solid-liquid interface, indicative of strong adsorbate-adsorbent affinity and potential chemisorption effects. This study not only demonstrates the effectiveness and adsorption behaviour of AC/KCC-1/DEX but also opens new avenues for sustainable water treatment solutions. Elsevier Ltd 2025 Article PeerReviewed pdf en http://umpir.ump.edu.my/id/eprint/44536/1/Hybrid%20activated%20carbon%20maltodextrin-functionalized%20fibrous%20silica%20for%20acetaminophen%20and%20amoxicillin%20adsorption.pdf Nuramira Fateha, Sukor and Rohayu, Jusoh (2025) Hybrid activated carbon/ maltodextrin-functionalized fibrous silica for acetaminophen and amoxicillin adsorption: Advanced statistical physics modelling. Environmental Research, 278 (121691). pp. 1-15. ISSN 0013-9351. (Published) https://doi.org/10.1016/j.envres.2025.121691 https://doi.org/10.1016/j.envres.2025.121691 |
| spellingShingle | TP Chemical technology Nuramira Fateha, Sukor Rohayu, Jusoh Hybrid activated carbon/ maltodextrin-functionalized fibrous silica for acetaminophen and amoxicillin adsorption: Advanced statistical physics modelling |
| title | Hybrid activated carbon/ maltodextrin-functionalized fibrous silica for acetaminophen and amoxicillin adsorption: Advanced statistical physics modelling |
| title_full | Hybrid activated carbon/ maltodextrin-functionalized fibrous silica for acetaminophen and amoxicillin adsorption: Advanced statistical physics modelling |
| title_fullStr | Hybrid activated carbon/ maltodextrin-functionalized fibrous silica for acetaminophen and amoxicillin adsorption: Advanced statistical physics modelling |
| title_full_unstemmed | Hybrid activated carbon/ maltodextrin-functionalized fibrous silica for acetaminophen and amoxicillin adsorption: Advanced statistical physics modelling |
| title_short | Hybrid activated carbon/ maltodextrin-functionalized fibrous silica for acetaminophen and amoxicillin adsorption: Advanced statistical physics modelling |
| title_sort | hybrid activated carbon/ maltodextrin-functionalized fibrous silica for acetaminophen and amoxicillin adsorption: advanced statistical physics modelling |
| topic | TP Chemical technology |
| url | http://umpir.ump.edu.my/id/eprint/44536/ http://umpir.ump.edu.my/id/eprint/44536/ http://umpir.ump.edu.my/id/eprint/44536/ http://umpir.ump.edu.my/id/eprint/44536/1/Hybrid%20activated%20carbon%20maltodextrin-functionalized%20fibrous%20silica%20for%20acetaminophen%20and%20amoxicillin%20adsorption.pdf |