Optimization of Pyrocatechol and p-Cresol adsorption onto a composite of Chitosan and polyacrylamide incorporated with zeolitic imidazolate Framework-8
Abstract The objective of the current research was to adsorb pyrocatechol and p-cresol from a water-based solution using CS-PAA-ZIF-8. Response surface methodology (RSM) using central composite design (CCD) was utilized to examine and optimize the process variables. These variables included pH, conc...
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Nature Portfolio
2025-07-01
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| Series: | Scientific Reports |
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| Online Access: | https://doi.org/10.1038/s41598-025-07613-2 |
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| author | Chou-Yi Hsu Ebraheem Abdu Musad Saleh M. M. Moharam Mohammad Y. Alshahrani Sandeep Singh Aditya Kashyap T. Krithiga Parul Chaudhary Nezamaddin Mengelizadeh Davoud Balarak |
| author_facet | Chou-Yi Hsu Ebraheem Abdu Musad Saleh M. M. Moharam Mohammad Y. Alshahrani Sandeep Singh Aditya Kashyap T. Krithiga Parul Chaudhary Nezamaddin Mengelizadeh Davoud Balarak |
| author_sort | Chou-Yi Hsu |
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| description | Abstract The objective of the current research was to adsorb pyrocatechol and p-cresol from a water-based solution using CS-PAA-ZIF-8. Response surface methodology (RSM) using central composite design (CCD) was utilized to examine and optimize the process variables. These variables included pH, concentrations of pyrocatechol and p-cresol, mass of the adsorbent, and contact time. Quadratic models with a coefficient of determination (R2) of 0.99 (p < 0.0001) were statistically compared. The findings indicated that the chosen models exhibit strong precision and a significant alignment between the projected and experimental data. The optimal removal conditions consisted of pH of 5, a concentration of 25 mg/L, a CS-PAA-ZIF-8 dosage of 0.8 g/L, and a contact time of 60 min. Under these circumstances, the removal efficiencies (Experimental) for pyrocatechol and p-cresol were 98.4% (%R Predicted: 99.1) and 96.1% (%R Predicted: 97.3), respectively. The adsorbent was found to be reusable up to 5 times in water and wastewater treatment processes, according to the assessment of its reusability. The kinetics of the evaluated process aligned well with the PSO, and the adsorption capacities of pyrocatechol and p-cresol on CS-PAA-ZIF-8, as deduced from the Langmuir model, were 180.1 and 171.5 mg/g at a temperature of 50 °C. Consequently, the optimized method can be broadly applied with high effectiveness for eliminating pyrocatechol and p-cresol from water and wastewater samples. |
| format | Article |
| id | doaj-art-daa36e8e73b741da92a4995c03a1b685 |
| institution | Kabale University |
| issn | 2045-2322 |
| language | English |
| publishDate | 2025-07-01 |
| publisher | Nature Portfolio |
| record_format | Article |
| series | Scientific Reports |
| spelling | doaj-art-daa36e8e73b741da92a4995c03a1b6852025-08-20T04:01:26ZengNature PortfolioScientific Reports2045-23222025-07-0115111910.1038/s41598-025-07613-2Optimization of Pyrocatechol and p-Cresol adsorption onto a composite of Chitosan and polyacrylamide incorporated with zeolitic imidazolate Framework-8Chou-Yi Hsu0Ebraheem Abdu Musad Saleh1M. M. Moharam2Mohammad Y. Alshahrani3Sandeep Singh4Aditya Kashyap5T. Krithiga6Parul Chaudhary7Nezamaddin Mengelizadeh8Davoud Balarak9Department of Pharmacy, Chia Nan University of Pharmacy and ScienceDepartment of Chemistry, College of Science and Humanities in Al- Kharj, Prince Sattam Bin Abdulaziz UniversityDepartment of Chemistry, College of Science and Humanities in Al-Kharj, Brince Sattam Bin Abdulaziz UniversityCentral Labs, King Khalid UniversityDepartment of Civil Engineering, School of Engineering and Technology, Bahra UniversityCentre for Research Impact & Outcome, Chitkara University Institute of Engineering and Technology, Chitkara UniversityDepartment of Chemistry, Sathyabama Institute of Science and TechnologySchool of Agriculture, Graphic Era Hill UniversityDepartment of Environmental Health Engineering, Faculty of Health, Larestan University of medical SciencesDepartment of Environmental Health, Health Promotion Research Center, Zahedan University of Medical SciencesAbstract The objective of the current research was to adsorb pyrocatechol and p-cresol from a water-based solution using CS-PAA-ZIF-8. Response surface methodology (RSM) using central composite design (CCD) was utilized to examine and optimize the process variables. These variables included pH, concentrations of pyrocatechol and p-cresol, mass of the adsorbent, and contact time. Quadratic models with a coefficient of determination (R2) of 0.99 (p < 0.0001) were statistically compared. The findings indicated that the chosen models exhibit strong precision and a significant alignment between the projected and experimental data. The optimal removal conditions consisted of pH of 5, a concentration of 25 mg/L, a CS-PAA-ZIF-8 dosage of 0.8 g/L, and a contact time of 60 min. Under these circumstances, the removal efficiencies (Experimental) for pyrocatechol and p-cresol were 98.4% (%R Predicted: 99.1) and 96.1% (%R Predicted: 97.3), respectively. The adsorbent was found to be reusable up to 5 times in water and wastewater treatment processes, according to the assessment of its reusability. The kinetics of the evaluated process aligned well with the PSO, and the adsorption capacities of pyrocatechol and p-cresol on CS-PAA-ZIF-8, as deduced from the Langmuir model, were 180.1 and 171.5 mg/g at a temperature of 50 °C. Consequently, the optimized method can be broadly applied with high effectiveness for eliminating pyrocatechol and p-cresol from water and wastewater samples.https://doi.org/10.1038/s41598-025-07613-2Chitosan/polyacrylamide/ZIF-8AdsorptionResponse surface methodologyPyrocatecholP-cresol |
| spellingShingle | Chou-Yi Hsu Ebraheem Abdu Musad Saleh M. M. Moharam Mohammad Y. Alshahrani Sandeep Singh Aditya Kashyap T. Krithiga Parul Chaudhary Nezamaddin Mengelizadeh Davoud Balarak Optimization of Pyrocatechol and p-Cresol adsorption onto a composite of Chitosan and polyacrylamide incorporated with zeolitic imidazolate Framework-8 Scientific Reports Chitosan/polyacrylamide/ZIF-8 Adsorption Response surface methodology Pyrocatechol P-cresol |
| title | Optimization of Pyrocatechol and p-Cresol adsorption onto a composite of Chitosan and polyacrylamide incorporated with zeolitic imidazolate Framework-8 |
| title_full | Optimization of Pyrocatechol and p-Cresol adsorption onto a composite of Chitosan and polyacrylamide incorporated with zeolitic imidazolate Framework-8 |
| title_fullStr | Optimization of Pyrocatechol and p-Cresol adsorption onto a composite of Chitosan and polyacrylamide incorporated with zeolitic imidazolate Framework-8 |
| title_full_unstemmed | Optimization of Pyrocatechol and p-Cresol adsorption onto a composite of Chitosan and polyacrylamide incorporated with zeolitic imidazolate Framework-8 |
| title_short | Optimization of Pyrocatechol and p-Cresol adsorption onto a composite of Chitosan and polyacrylamide incorporated with zeolitic imidazolate Framework-8 |
| title_sort | optimization of pyrocatechol and p cresol adsorption onto a composite of chitosan and polyacrylamide incorporated with zeolitic imidazolate framework 8 |
| topic | Chitosan/polyacrylamide/ZIF-8 Adsorption Response surface methodology Pyrocatechol P-cresol |
| url | https://doi.org/10.1038/s41598-025-07613-2 |
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