Preparing Shrimp Shell-Derived Chitosan with Rice Husk-Derived Biochar for Efficient Safranin O Removal from Aqueous Solution
In this study, the shrimp shell-derived chitosan was coated onto rice husk-derived biochar to form chitosan/biochar bio-composite beads. The physicochemical properties of biochar (BC) and chitosan/biochar beads (CS@BC) were characterized by BET, SEM-EDX, FTIR, and pHpzc analyses, which were then tes...
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| Format: | Article |
| Language: | English |
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Polish Society of Ecological Engineering (PTIE)
2023-01-01
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| Series: | Journal of Ecological Engineering |
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| Online Access: | http://www.jeeng.net/Preparing-Shrimp-Shell-Derived-Chitosan-with-Rice-Husk-Derived-Biochar-for-Efficient,156094,0,2.html |
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| author | Do Thi My Phuong Nguyen Thi Thanh Thao Nguyen Xuan Loc |
| author_facet | Do Thi My Phuong Nguyen Thi Thanh Thao Nguyen Xuan Loc |
| author_sort | Do Thi My Phuong |
| collection | DOAJ |
| description | In this study, the shrimp shell-derived chitosan was coated onto rice husk-derived biochar to form chitosan/biochar bio-composite beads. The physicochemical properties of biochar (BC) and chitosan/biochar beads (CS@BC) were characterized by BET, SEM-EDX, FTIR, and pHpzc analyses, which were then tested for their capacity to remove Safranin O (SO) from water. In kinetics, the pseudo-second-order model was found to well represent experimental data, indicating the adsorption was mainly a chemical process. The intra-particle diffusion model was not the sole rate-limiting step, because the results did not pass through the origin. In isotherms, both the Langmuir and Freundlich models described well the equilibrium adsorption data. The CS@BC adsorbent showed adsorption capacity at 77.94 mg/g for SO, which is higher than BC adsorbent with 62.25 mg/g (experimental conditions: pH ~ 7.0, dosage = 0.2g, contact time = 240 min, and temperature = 298K). The findings revealed that the biochar-loaded chitosan can improve the adsorption capacity of SO. It is predicted that the enhancement in the functional groups (i.e., -NH2 and -OH groups) of CS@BC could contribute to the electrostatic interactions and the complexation between SO and CS@BC, thereby enhancing the Safranin O adsorption from water. |
| first_indexed | 2024-04-12T05:10:25Z |
| format | Article |
| id | doaj.art-84b0b12e5dbe4a908a267a2ada0813a3 |
| institution | Directory Open Access Journal |
| issn | 2299-8993 |
| language | English |
| last_indexed | 2024-04-12T05:10:25Z |
| publishDate | 2023-01-01 |
| publisher | Polish Society of Ecological Engineering (PTIE) |
| record_format | Article |
| series | Journal of Ecological Engineering |
| spelling | doaj.art-84b0b12e5dbe4a908a267a2ada0813a32022-12-22T03:46:46ZengPolish Society of Ecological Engineering (PTIE)Journal of Ecological Engineering2299-89932023-01-0124124825910.12911/22998993/156094156094Preparing Shrimp Shell-Derived Chitosan with Rice Husk-Derived Biochar for Efficient Safranin O Removal from Aqueous SolutionDo Thi My Phuong0Nguyen Thi Thanh Thao1Nguyen Xuan Loc2https://orcid.org/0000-0003-0423-6179Department of Environmental Science, College of the Environment and Natural Resources, Can Tho University, Can Tho 900000, VietnamDepartment of Environmental Science, College of the Environment and Natural Resources, Can Tho University, Can Tho 900000, VietnamDepartment of Environmental Engineering, College of the Environment and Natural Resources, Can Tho University, Can Tho 900000, VietnamIn this study, the shrimp shell-derived chitosan was coated onto rice husk-derived biochar to form chitosan/biochar bio-composite beads. The physicochemical properties of biochar (BC) and chitosan/biochar beads (CS@BC) were characterized by BET, SEM-EDX, FTIR, and pHpzc analyses, which were then tested for their capacity to remove Safranin O (SO) from water. In kinetics, the pseudo-second-order model was found to well represent experimental data, indicating the adsorption was mainly a chemical process. The intra-particle diffusion model was not the sole rate-limiting step, because the results did not pass through the origin. In isotherms, both the Langmuir and Freundlich models described well the equilibrium adsorption data. The CS@BC adsorbent showed adsorption capacity at 77.94 mg/g for SO, which is higher than BC adsorbent with 62.25 mg/g (experimental conditions: pH ~ 7.0, dosage = 0.2g, contact time = 240 min, and temperature = 298K). The findings revealed that the biochar-loaded chitosan can improve the adsorption capacity of SO. It is predicted that the enhancement in the functional groups (i.e., -NH2 and -OH groups) of CS@BC could contribute to the electrostatic interactions and the complexation between SO and CS@BC, thereby enhancing the Safranin O adsorption from water.http://www.jeeng.net/Preparing-Shrimp-Shell-Derived-Chitosan-with-Rice-Husk-Derived-Biochar-for-Efficient,156094,0,2.htmlchitosanadsorptionrice huskbiocharsafranin oshrimp shell |
| spellingShingle | Do Thi My Phuong Nguyen Thi Thanh Thao Nguyen Xuan Loc Preparing Shrimp Shell-Derived Chitosan with Rice Husk-Derived Biochar for Efficient Safranin O Removal from Aqueous Solution Journal of Ecological Engineering chitosan adsorption rice husk biochar safranin o shrimp shell |
| title | Preparing Shrimp Shell-Derived Chitosan with Rice Husk-Derived Biochar for Efficient Safranin O Removal from Aqueous Solution |
| title_full | Preparing Shrimp Shell-Derived Chitosan with Rice Husk-Derived Biochar for Efficient Safranin O Removal from Aqueous Solution |
| title_fullStr | Preparing Shrimp Shell-Derived Chitosan with Rice Husk-Derived Biochar for Efficient Safranin O Removal from Aqueous Solution |
| title_full_unstemmed | Preparing Shrimp Shell-Derived Chitosan with Rice Husk-Derived Biochar for Efficient Safranin O Removal from Aqueous Solution |
| title_short | Preparing Shrimp Shell-Derived Chitosan with Rice Husk-Derived Biochar for Efficient Safranin O Removal from Aqueous Solution |
| title_sort | preparing shrimp shell derived chitosan with rice husk derived biochar for efficient safranin o removal from aqueous solution |
| topic | chitosan adsorption rice husk biochar safranin o shrimp shell |
| url | http://www.jeeng.net/Preparing-Shrimp-Shell-Derived-Chitosan-with-Rice-Husk-Derived-Biochar-for-Efficient,156094,0,2.html |
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