Green adsorbents for water remediation: Removal of Cr(vi) and Ni(ii) using Prosopis glandulosa sawdust and biochar
Potentially toxic elements like Cr+6 and Ni+2 cause severe health hazards. Therefore, the current work was aimed at cleaning water using Prosopis glandulosa raw sawdust (SD) and its derived biochar (AC). Both the adsorbents were characterized via SEM, FTIR spectroscopy, EDX, and TGA and were applied...
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| Format: | Article |
| Language: | English |
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De Gruyter
2025-01-01
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| Series: | Green Processing and Synthesis |
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| Online Access: | https://doi.org/10.1515/gps-2024-0197 |
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| author | Salman Syed Muhammad Razzaq Safina Adnan Muhammad Rozina Sultana Sabiha Kamal Asif Al-Ghamdi Abdullah Ahmed Al Farraj Dunia Abdel Aziz Zaman Wajid |
| author_facet | Salman Syed Muhammad Razzaq Safina Adnan Muhammad Rozina Sultana Sabiha Kamal Asif Al-Ghamdi Abdullah Ahmed Al Farraj Dunia Abdel Aziz Zaman Wajid |
| author_sort | Salman Syed Muhammad |
| collection | DOAJ |
| description | Potentially toxic elements like Cr+6 and Ni+2 cause severe health hazards. Therefore, the current work was aimed at cleaning water using Prosopis glandulosa raw sawdust (SD) and its derived biochar (AC). Both the adsorbents were characterized via SEM, FTIR spectroscopy, EDX, and TGA and were applied for the effective removal of Ni(ii) and Cr(vi) at optimum values of experimental conditions, and the mechanism was assessed via adsorption isotherm and kinetic models. The correlation coefficient R
2 confirmed pseudo-second-order kinetics and preferred Freundlich isotherm model. Maximum removal of Cr(iv) was obtained at a pH of 4.0, a bio-sorbent concentration of 0.8 g·L−1, and a temperature of 50°C for 50 min with a metal concentration of 110 ppm, while maximum removal of Ni(ii) was obtained for a contact time of 70 min with a metal concentration of 130 ppm in the above-mentioned experimental conditions. The results of the isotherms and kinetic model revealed that metal adsorption processes involved multilayer formation on the biosorbent’s heterogeneous surface. Also, their thermodynamic investigation showed that the adsorption process is spontaneous and exothermic and, therefore, can be effectively utilized to remove Cr and Ni from water. |
| format | Article |
| id | doaj-art-85359ec027e54303a4e7252e965b235d |
| institution | Kabale University |
| issn | 2191-9550 |
| language | English |
| publishDate | 2025-01-01 |
| publisher | De Gruyter |
| record_format | Article |
| series | Green Processing and Synthesis |
| spelling | doaj-art-85359ec027e54303a4e7252e965b235d2025-02-02T15:45:37ZengDe GruyterGreen Processing and Synthesis2191-95502025-01-011411109927110.1515/gps-2024-0197Green adsorbents for water remediation: Removal of Cr(vi) and Ni(ii) using Prosopis glandulosa sawdust and biocharSalman Syed Muhammad0Razzaq Safina1Adnan Muhammad2Rozina3Sultana Sabiha4Kamal Asif5Al-Ghamdi Abdullah Ahmed6Al Farraj Dunia Abdel Aziz7Zaman Wajid8Department of Chemistry, Islamia College Peshawar, Peshawar, PakistanDepartment of Chemistry, Islamia College Peshawar, Peshawar, PakistanAssistant Manager Iqbal Ahmad Qarshi Laboratory, Qarshi Industry, Hattar, Haripur, PakistanDepartment of Chemistry, Islamia College Peshawar, Peshawar, PakistanDepartment of Chemistry, Islamia College Peshawar, Peshawar, PakistanDepartment of Plant Sciences, Faculty of Biological Science, Quaid-i-Azam University, Islamabad, 4520, PakistanDepartment of Botany and Microbiology, College of Science, King Saud University, P.O. 2455, Riyadh, 11451, Saudi ArabiaDepartment of Botany and Microbiology, College of Science, King Saud University, P.O. 2455, Riyadh, 11451, Saudi ArabiaDepartment of Life Sciences, Yeungnam University, Gyeongsan, 38541, Republic of KoreaPotentially toxic elements like Cr+6 and Ni+2 cause severe health hazards. Therefore, the current work was aimed at cleaning water using Prosopis glandulosa raw sawdust (SD) and its derived biochar (AC). Both the adsorbents were characterized via SEM, FTIR spectroscopy, EDX, and TGA and were applied for the effective removal of Ni(ii) and Cr(vi) at optimum values of experimental conditions, and the mechanism was assessed via adsorption isotherm and kinetic models. The correlation coefficient R 2 confirmed pseudo-second-order kinetics and preferred Freundlich isotherm model. Maximum removal of Cr(iv) was obtained at a pH of 4.0, a bio-sorbent concentration of 0.8 g·L−1, and a temperature of 50°C for 50 min with a metal concentration of 110 ppm, while maximum removal of Ni(ii) was obtained for a contact time of 70 min with a metal concentration of 130 ppm in the above-mentioned experimental conditions. The results of the isotherms and kinetic model revealed that metal adsorption processes involved multilayer formation on the biosorbent’s heterogeneous surface. Also, their thermodynamic investigation showed that the adsorption process is spontaneous and exothermic and, therefore, can be effectively utilized to remove Cr and Ni from water.https://doi.org/10.1515/gps-2024-0197potentially toxic elementsprosopis glandulosaadsorption studyisotherm modelskinetic studybatch experiment |
| spellingShingle | Salman Syed Muhammad Razzaq Safina Adnan Muhammad Rozina Sultana Sabiha Kamal Asif Al-Ghamdi Abdullah Ahmed Al Farraj Dunia Abdel Aziz Zaman Wajid Green adsorbents for water remediation: Removal of Cr(vi) and Ni(ii) using Prosopis glandulosa sawdust and biochar Green Processing and Synthesis potentially toxic elements prosopis glandulosa adsorption study isotherm models kinetic study batch experiment |
| title | Green adsorbents for water remediation: Removal of Cr(vi) and Ni(ii) using Prosopis glandulosa sawdust and biochar |
| title_full | Green adsorbents for water remediation: Removal of Cr(vi) and Ni(ii) using Prosopis glandulosa sawdust and biochar |
| title_fullStr | Green adsorbents for water remediation: Removal of Cr(vi) and Ni(ii) using Prosopis glandulosa sawdust and biochar |
| title_full_unstemmed | Green adsorbents for water remediation: Removal of Cr(vi) and Ni(ii) using Prosopis glandulosa sawdust and biochar |
| title_short | Green adsorbents for water remediation: Removal of Cr(vi) and Ni(ii) using Prosopis glandulosa sawdust and biochar |
| title_sort | green adsorbents for water remediation removal of cr vi and ni ii using prosopis glandulosa sawdust and biochar |
| topic | potentially toxic elements prosopis glandulosa adsorption study isotherm models kinetic study batch experiment |
| url | https://doi.org/10.1515/gps-2024-0197 |
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