Adsorption of Pb(Ⅱ) by cuttlebone-derived materials and its stability
This work mainly studied the Pb(Ⅱ) adsorption properties of cuttlebone-derived materials and the effects of adsorption time, initial solution concentration, and material aging. Cuttlebone is a fishery waste, which is mainly composed of calcium carbonate, and β-chitin. The cuttlebone derivative was p...
| Main Authors: | , , , , |
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| Format: | Article |
| Language: | English |
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EDP Sciences
2024-01-01
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| Series: | E3S Web of Conferences |
| Online Access: | https://www.e3s-conferences.org/articles/e3sconf/pdf/2024/20/e3sconf_arfee2024_01011.pdf |
| _version_ | 1797299507305644032 |
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| author | Xiong Yanqing Qin Peirui Sun Xiao Yin Mengnan He Zhaohui |
| author_facet | Xiong Yanqing Qin Peirui Sun Xiao Yin Mengnan He Zhaohui |
| author_sort | Xiong Yanqing |
| collection | DOAJ |
| description | This work mainly studied the Pb(Ⅱ) adsorption properties of cuttlebone-derived materials and the effects of adsorption time, initial solution concentration, and material aging. Cuttlebone is a fishery waste, which is mainly composed of calcium carbonate, and β-chitin. The cuttlebone derivative was prepared by high-temperature carbonization and deacetylation. The results showed that the adsorption of Pb(Ⅱ) by carbonized and deacetylated cuttlebone derivatives was significantly improved from 1644 mg/g to 2216 mg/g and 2118 mg/g, respectively. It resulted that high-temperature carbonization promoted the crystal change of calcium carbonate in cuttlebone from aragonite crystal to calcite crystal, and the latter has a stronger ion exchange capacity for Pb(Ⅱ) than the former. Deacetylation promoted the conversion of chitin in cuttlebone to chitosan, which is beneficial to complexing Pb(Ⅱ) and further improving the adsorption performance. The adsorption kinetics and isotherms of Pb(Ⅱ)on cuttlebone-derived materials conform to the quasi-second-order kinetic model and Langmuir model, respectively. After freeze-thaw aging and hydrogen peroxide aging, the adsorption capacity of Pb(Ⅱ) has been further improved, indicating that the derived materials of cuttlebone are relatively stable. Based on this study, the derived materials of cuttlebone have the potential to treat Pb(Ⅱ) ions in wastewater. |
| first_indexed | 2024-03-07T22:50:40Z |
| format | Article |
| id | doaj.art-98988dd80a8d4a3fb20e00d3e98583a2 |
| institution | Directory Open Access Journal |
| issn | 2267-1242 |
| language | English |
| last_indexed | 2024-03-07T22:50:40Z |
| publishDate | 2024-01-01 |
| publisher | EDP Sciences |
| record_format | Article |
| series | E3S Web of Conferences |
| spelling | doaj.art-98988dd80a8d4a3fb20e00d3e98583a22024-02-23T10:20:42ZengEDP SciencesE3S Web of Conferences2267-12422024-01-014900101110.1051/e3sconf/202449001011e3sconf_arfee2024_01011Adsorption of Pb(Ⅱ) by cuttlebone-derived materials and its stabilityXiong Yanqing0Qin Peirui1Sun Xiao2Yin Mengnan3He Zhaohui4Yunnan Provincial Key Laboratory of Soil Carbon Sequestration and Pollution Control, Faculty of Environmental Science and Engineering, Kunming University of Science and TechnologyCSCEC SCIMEE Sci.& Tech. Co., LtdYunnan Provincial Key Laboratory of Soil Carbon Sequestration and Pollution Control, Faculty of Environmental Science and Engineering, Kunming University of Science and TechnologyYunnan Provincial Key Laboratory of Soil Carbon Sequestration and Pollution Control, Faculty of Environmental Science and Engineering, Kunming University of Science and TechnologyYunnan Provincial Key Laboratory of Soil Carbon Sequestration and Pollution Control, Faculty of Environmental Science and Engineering, Kunming University of Science and TechnologyThis work mainly studied the Pb(Ⅱ) adsorption properties of cuttlebone-derived materials and the effects of adsorption time, initial solution concentration, and material aging. Cuttlebone is a fishery waste, which is mainly composed of calcium carbonate, and β-chitin. The cuttlebone derivative was prepared by high-temperature carbonization and deacetylation. The results showed that the adsorption of Pb(Ⅱ) by carbonized and deacetylated cuttlebone derivatives was significantly improved from 1644 mg/g to 2216 mg/g and 2118 mg/g, respectively. It resulted that high-temperature carbonization promoted the crystal change of calcium carbonate in cuttlebone from aragonite crystal to calcite crystal, and the latter has a stronger ion exchange capacity for Pb(Ⅱ) than the former. Deacetylation promoted the conversion of chitin in cuttlebone to chitosan, which is beneficial to complexing Pb(Ⅱ) and further improving the adsorption performance. The adsorption kinetics and isotherms of Pb(Ⅱ)on cuttlebone-derived materials conform to the quasi-second-order kinetic model and Langmuir model, respectively. After freeze-thaw aging and hydrogen peroxide aging, the adsorption capacity of Pb(Ⅱ) has been further improved, indicating that the derived materials of cuttlebone are relatively stable. Based on this study, the derived materials of cuttlebone have the potential to treat Pb(Ⅱ) ions in wastewater.https://www.e3s-conferences.org/articles/e3sconf/pdf/2024/20/e3sconf_arfee2024_01011.pdf |
| spellingShingle | Xiong Yanqing Qin Peirui Sun Xiao Yin Mengnan He Zhaohui Adsorption of Pb(Ⅱ) by cuttlebone-derived materials and its stability E3S Web of Conferences |
| title | Adsorption of Pb(Ⅱ) by cuttlebone-derived materials and its stability |
| title_full | Adsorption of Pb(Ⅱ) by cuttlebone-derived materials and its stability |
| title_fullStr | Adsorption of Pb(Ⅱ) by cuttlebone-derived materials and its stability |
| title_full_unstemmed | Adsorption of Pb(Ⅱ) by cuttlebone-derived materials and its stability |
| title_short | Adsorption of Pb(Ⅱ) by cuttlebone-derived materials and its stability |
| title_sort | adsorption of pb ii by cuttlebone derived materials and its stability |
| url | https://www.e3s-conferences.org/articles/e3sconf/pdf/2024/20/e3sconf_arfee2024_01011.pdf |
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