Biomass-derived carbon/iron composite (FexOy-BC (RM)) with excellent Cd(II) adsorption from wastewater – Red mud resource utilization
Red mud is an industrial by-product produced in the process of alumina refining. It contains many iron elements, and the traditional resource utilization method is to extract it. This study took an alternative approach by using red mud's iron content as the substrate to synthesize a novel iron-...
| Main Authors: | , , , , , , , |
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| Format: | Article |
| Language: | English |
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Elsevier
2024-01-01
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| Series: | Arabian Journal of Chemistry |
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| Online Access: | http://www.sciencedirect.com/science/article/pii/S1878535223008730 |
| _version_ | 1797390524337881088 |
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| author | Jiamin Qi Hengxi Zhu Tianyu Yang Xingyuan Wang Zixuan Wang Xiaoli Lei Bin Li Wenmin Qian |
| author_facet | Jiamin Qi Hengxi Zhu Tianyu Yang Xingyuan Wang Zixuan Wang Xiaoli Lei Bin Li Wenmin Qian |
| author_sort | Jiamin Qi |
| collection | DOAJ |
| description | Red mud is an industrial by-product produced in the process of alumina refining. It contains many iron elements, and the traditional resource utilization method is to extract it. This study took an alternative approach by using red mud's iron content as the substrate to synthesize a novel iron-biochar adsorbent for removing heavy metals from wastewater. Walnut shell biochar was reacted with the iron in red mud via an in-situ reduction–oxidation process to produce an iron-carbon composite adsorbent (FexOy-BC). A series of characterization analyses (e.g., SEM, FTIR, XPS, etc.) and batch adsorption experiments were conducted to investigate the properties and Cd(II) removal performance of the adsorbent, respectively. Response surface methodology was further employed to optimize the adsorption conditions, identifying the ideal 6 g/L adsorbent dose, 10 mg/L initial Cd(II) concentration (C0), and pH 6. The optimized quadratic model demonstrated excellent fit, with an average Cd(II) removal efficiency of 92.59 % under optimal conditions. The adsorption mechanism, renewability, and preliminary cost-benefit analysis indicate that FexOy-BC has the potential to be a highly efficient and sustainable adsorbent. In summary, the new method can recover resources from red mud waste and synthesize heavy metal adsorbents, which comprehensively solves two long-standing problems of industrial waste. |
| first_indexed | 2024-03-08T23:12:07Z |
| format | Article |
| id | doaj.art-0bfd21f6cd5342968eb9db6c978415aa |
| institution | Directory Open Access Journal |
| issn | 1878-5352 |
| language | English |
| last_indexed | 2024-03-08T23:12:07Z |
| publishDate | 2024-01-01 |
| publisher | Elsevier |
| record_format | Article |
| series | Arabian Journal of Chemistry |
| spelling | doaj.art-0bfd21f6cd5342968eb9db6c978415aa2023-12-15T07:23:28ZengElsevierArabian Journal of Chemistry1878-53522024-01-01171105411Biomass-derived carbon/iron composite (FexOy-BC (RM)) with excellent Cd(II) adsorption from wastewater – Red mud resource utilizationJiamin Qi0Hengxi Zhu1Tianyu Yang2Xingyuan Wang3Zixuan Wang4Xiaoli Lei5Bin Li6Wenmin Qian7Faculty of Environmental Science and Engineering, Kunming University of Science and Technology, Kunming 650500, Yunnan, ChinaFaculty of Environmental Science and Engineering, Kunming University of Science and Technology, Kunming 650500, Yunnan, ChinaFaculty of Environmental Science and Engineering, Kunming University of Science and Technology, Kunming 650500, Yunnan, ChinaFaculty of Environmental Science and Engineering, Kunming University of Science and Technology, Kunming 650500, Yunnan, ChinaFaculty of Environmental Science and Engineering, Kunming University of Science and Technology, Kunming 650500, Yunnan, ChinaFaculty of Environmental Science and Engineering, Kunming University of Science and Technology, Kunming 650500, Yunnan, ChinaFaculty of Environmental Science and Engineering, Kunming University of Science and Technology, Kunming 650500, Yunnan, China; National-Regional Engineering Center for Recovery of Waste Gases from Metallurgical and Chemical Industries, Kunming 650500, Yunnan, China; Corresponding authors at: Faculty of Environmental Science and Engineering, Kunming University of Science and Technology, Kunming 650500, Yunnan, China (Bin Li).Yunnan Academy of Eco-Environmental Sciences, Kunming 650500, Yunnan, China; Corresponding authors at: Faculty of Environmental Science and Engineering, Kunming University of Science and Technology, Kunming 650500, Yunnan, China (Bin Li).Red mud is an industrial by-product produced in the process of alumina refining. It contains many iron elements, and the traditional resource utilization method is to extract it. This study took an alternative approach by using red mud's iron content as the substrate to synthesize a novel iron-biochar adsorbent for removing heavy metals from wastewater. Walnut shell biochar was reacted with the iron in red mud via an in-situ reduction–oxidation process to produce an iron-carbon composite adsorbent (FexOy-BC). A series of characterization analyses (e.g., SEM, FTIR, XPS, etc.) and batch adsorption experiments were conducted to investigate the properties and Cd(II) removal performance of the adsorbent, respectively. Response surface methodology was further employed to optimize the adsorption conditions, identifying the ideal 6 g/L adsorbent dose, 10 mg/L initial Cd(II) concentration (C0), and pH 6. The optimized quadratic model demonstrated excellent fit, with an average Cd(II) removal efficiency of 92.59 % under optimal conditions. The adsorption mechanism, renewability, and preliminary cost-benefit analysis indicate that FexOy-BC has the potential to be a highly efficient and sustainable adsorbent. In summary, the new method can recover resources from red mud waste and synthesize heavy metal adsorbents, which comprehensively solves two long-standing problems of industrial waste.http://www.sciencedirect.com/science/article/pii/S1878535223008730Red mudIron-carbon composite materialCd(II)Response surfaceRenewability |
| spellingShingle | Jiamin Qi Hengxi Zhu Tianyu Yang Xingyuan Wang Zixuan Wang Xiaoli Lei Bin Li Wenmin Qian Biomass-derived carbon/iron composite (FexOy-BC (RM)) with excellent Cd(II) adsorption from wastewater – Red mud resource utilization Arabian Journal of Chemistry Red mud Iron-carbon composite material Cd(II) Response surface Renewability |
| title | Biomass-derived carbon/iron composite (FexOy-BC (RM)) with excellent Cd(II) adsorption from wastewater – Red mud resource utilization |
| title_full | Biomass-derived carbon/iron composite (FexOy-BC (RM)) with excellent Cd(II) adsorption from wastewater – Red mud resource utilization |
| title_fullStr | Biomass-derived carbon/iron composite (FexOy-BC (RM)) with excellent Cd(II) adsorption from wastewater – Red mud resource utilization |
| title_full_unstemmed | Biomass-derived carbon/iron composite (FexOy-BC (RM)) with excellent Cd(II) adsorption from wastewater – Red mud resource utilization |
| title_short | Biomass-derived carbon/iron composite (FexOy-BC (RM)) with excellent Cd(II) adsorption from wastewater – Red mud resource utilization |
| title_sort | biomass derived carbon iron composite fexoy bc rm with excellent cd ii adsorption from wastewater red mud resource utilization |
| topic | Red mud Iron-carbon composite material Cd(II) Response surface Renewability |
| url | http://www.sciencedirect.com/science/article/pii/S1878535223008730 |
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