Adsorption of Diclofenac Sodium and Ibuprofen by Bentonite Polyureaformaldehyde Thermodynamics and Kinetics Study
An increasing number of emerging contaminants have been detected in surface waters, sediment, soil and ground water in different locations in the world, which is a new environmental challenges need an actual concern for international scientific and legislative communities. The nonprescription and h...
| Main Authors: | , , |
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| Format: | Article |
| Language: | English |
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University of Baghdad/College of Engineering
2018-03-01
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| Series: | Iraqi Journal of Chemical and Petroleum Engineering |
| Online Access: | https://ijcpe.edu.iq/index.php/main/article/view/106/90 |
| _version_ | 1818041742974255104 |
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| author | Basma Abbas Abdel Majeed Raheem Jameel Muhseen Nawras Jameel Jassim |
| author_facet | Basma Abbas Abdel Majeed Raheem Jameel Muhseen Nawras Jameel Jassim |
| author_sort | Basma Abbas Abdel Majeed |
| collection | DOAJ |
| description | An increasing number of emerging contaminants have been detected in surface waters, sediment, soil and ground water in different locations in the world, which is a new environmental challenges need an actual concern for international scientific and legislative communities.
The nonprescription and huge used pharmaceuticals ibuprofen and diclofenac sodium will be focused in this study. New adsorbent developed using cheap inorganic clay material (bentonite) and organic polymer polyureaformaldehyde (PUF), the combination of these two materials gave the surface more roughness with wide active site distribution. Batch adsorption experiment performed to each pharmaceutical individually to determine the optimum separation parameters and understanding the adsorption process pathway. Both pharmaceuticals adsorbed on bentonite –PUF adsorbent in short time ranges from 15 min for ibuprofen to 30 min for diclofenac sodium .Thermodynamic analysis indicates the adsorption process is endothermic in nature and fall in the region of physical adsorption for tested pharmaceuticals (ΔH˚=14.69 KJ/Mol for both ibuprofen and diclofenac sodium 23.33 and respectively).Elovichs equation for describing kinetics of adsorption seemed a good fit with adsorption of both pharmaceuticals .The effect of pH had a significant effect for both pharmaceuticals with high removal (99.8% for diclofenac and 99.2 % for ibuprofen) at acidic pH=2 below Pka value. Isotherm studied at different initial concentration, the results showed that the Dubinin-Radushkevich model suitable for describing ibuprofen adsorption, and Freundlich's isotherm for diclofenac sodium. |
| first_indexed | 2024-12-10T08:35:16Z |
| format | Article |
| id | doaj.art-224e371206f8493d9105f85384dcea68 |
| institution | Directory Open Access Journal |
| issn | 1997-4884 |
| language | English |
| last_indexed | 2024-12-10T08:35:16Z |
| publishDate | 2018-03-01 |
| publisher | University of Baghdad/College of Engineering |
| record_format | Article |
| series | Iraqi Journal of Chemical and Petroleum Engineering |
| spelling | doaj.art-224e371206f8493d9105f85384dcea682022-12-22T01:56:00ZengUniversity of Baghdad/College of EngineeringIraqi Journal of Chemical and Petroleum Engineering1997-48842018-03-011912943Adsorption of Diclofenac Sodium and Ibuprofen by Bentonite Polyureaformaldehyde Thermodynamics and Kinetics StudyBasma Abbas Abdel Majeed0Raheem Jameel Muhseen1Nawras Jameel Jassim2College of Engineering -University of BaghdadCollege of Pharmacy-University of BasraBasra Technical Institute -Southern Technical UniversityAn increasing number of emerging contaminants have been detected in surface waters, sediment, soil and ground water in different locations in the world, which is a new environmental challenges need an actual concern for international scientific and legislative communities. The nonprescription and huge used pharmaceuticals ibuprofen and diclofenac sodium will be focused in this study. New adsorbent developed using cheap inorganic clay material (bentonite) and organic polymer polyureaformaldehyde (PUF), the combination of these two materials gave the surface more roughness with wide active site distribution. Batch adsorption experiment performed to each pharmaceutical individually to determine the optimum separation parameters and understanding the adsorption process pathway. Both pharmaceuticals adsorbed on bentonite –PUF adsorbent in short time ranges from 15 min for ibuprofen to 30 min for diclofenac sodium .Thermodynamic analysis indicates the adsorption process is endothermic in nature and fall in the region of physical adsorption for tested pharmaceuticals (ΔH˚=14.69 KJ/Mol for both ibuprofen and diclofenac sodium 23.33 and respectively).Elovichs equation for describing kinetics of adsorption seemed a good fit with adsorption of both pharmaceuticals .The effect of pH had a significant effect for both pharmaceuticals with high removal (99.8% for diclofenac and 99.2 % for ibuprofen) at acidic pH=2 below Pka value. Isotherm studied at different initial concentration, the results showed that the Dubinin-Radushkevich model suitable for describing ibuprofen adsorption, and Freundlich's isotherm for diclofenac sodium.https://ijcpe.edu.iq/index.php/main/article/view/106/90 |
| spellingShingle | Basma Abbas Abdel Majeed Raheem Jameel Muhseen Nawras Jameel Jassim Adsorption of Diclofenac Sodium and Ibuprofen by Bentonite Polyureaformaldehyde Thermodynamics and Kinetics Study Iraqi Journal of Chemical and Petroleum Engineering |
| title | Adsorption of Diclofenac Sodium and Ibuprofen by Bentonite Polyureaformaldehyde Thermodynamics and Kinetics Study |
| title_full | Adsorption of Diclofenac Sodium and Ibuprofen by Bentonite Polyureaformaldehyde Thermodynamics and Kinetics Study |
| title_fullStr | Adsorption of Diclofenac Sodium and Ibuprofen by Bentonite Polyureaformaldehyde Thermodynamics and Kinetics Study |
| title_full_unstemmed | Adsorption of Diclofenac Sodium and Ibuprofen by Bentonite Polyureaformaldehyde Thermodynamics and Kinetics Study |
| title_short | Adsorption of Diclofenac Sodium and Ibuprofen by Bentonite Polyureaformaldehyde Thermodynamics and Kinetics Study |
| title_sort | adsorption of diclofenac sodium and ibuprofen by bentonite polyureaformaldehyde thermodynamics and kinetics study |
| url | https://ijcpe.edu.iq/index.php/main/article/view/106/90 |
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