Adsorption properties and competitive adsorption mechanism exhibited by carbon-nanotube-modified biochar for removal of crude oil and Ni(II) pollutants from water
Carbon-nanotube-modified biochar (CNT3-CBC) with a nanostructured surface was prepared by using cattle manure as the raw material via the impregnation method. This modified biochar was then used to adsorb petroleum and Ni(II) from aqueous solutions. Various physicochemical characterization technique...
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Elsevier
2025-01-01
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| Series: | Ecotoxicology and Environmental Safety |
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| Online Access: | http://www.sciencedirect.com/science/article/pii/S0147651324016336 |
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| author | Di Cao Ruiyan Niu Guanglu Mo Huiwen Deng Rui Liu Jie Liu Jialin Fan |
| author_facet | Di Cao Ruiyan Niu Guanglu Mo Huiwen Deng Rui Liu Jie Liu Jialin Fan |
| author_sort | Di Cao |
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| description | Carbon-nanotube-modified biochar (CNT3-CBC) with a nanostructured surface was prepared by using cattle manure as the raw material via the impregnation method. This modified biochar was then used to adsorb petroleum and Ni(II) from aqueous solutions. Various physicochemical characterization techniques were employed, including SEM, BET analysis, FTIR, and XPS. Kinetic and isothermal adsorption characteristics were analyzed. The influence of different biochar dosages, solution pH levels, and number of adsorption cycles on the efficiency of removal of crude oil and Ni(II) was meticulously evaluated. Results indicated that modified biochar had a higher surface area, a greater number of surface functional groups, and higher interaction forces compared to biochar. Adsorption kinetics and isotherms showed that modified biochar had a strong adsorption capacity. The experimental data conformed closely to the Elovich, Langmuir, and Freundlich adsorption models, underscoring the significant contributions of both physical and chemical adsorption mechanisms. Competitive adsorption of modified biochar in the co-sorption of petroleum and nickel solutions exists, and the modified biochar demonstrated high capacities for crude oil and Ni(II) in the competitive adsorption. The modified biochar prepared at a pyrolysis temperature of 800°C exhibited a superior adsorption performance, and the adsorption capacities of crude oil and Ni(II) were 303.03 mg·g−1 and 32.87 mg·g-¹ , respectively. Modified biochar has better regeneration potential after crude oil and Ni(II) adsorption, with the removal efficiency remaining above 50 % in the fourth cycle. As an efficient and environmentally friendly adsorbent, modified biochar shows great potential for removing crude oil and Ni(II) pollutants from water. |
| format | Article |
| id | doaj-art-f0126d6442974c1c9fc7d1c9e31f08f2 |
| institution | Kabale University |
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| language | English |
| publishDate | 2025-01-01 |
| publisher | Elsevier |
| record_format | Article |
| series | Ecotoxicology and Environmental Safety |
| spelling | doaj-art-f0126d6442974c1c9fc7d1c9e31f08f22025-02-12T05:29:43ZengElsevierEcotoxicology and Environmental Safety0147-65132025-01-01290117557Adsorption properties and competitive adsorption mechanism exhibited by carbon-nanotube-modified biochar for removal of crude oil and Ni(II) pollutants from waterDi Cao0Ruiyan Niu1Guanglu Mo2Huiwen Deng3Rui Liu4Jie Liu5Jialin Fan6Heilongjiang Provincial Key Laboratory of Environmental Microbiology and Recycling of Argo‑Waste in Cold Region, College of Life Science and Biotechnology, Heilongjiang Bayi Agricultural University, Daqing, Heilongjiang 163319, China; Key Laboratory of Low‑Carbon Green Agriculture in Northeastern China, Ministry of Agriculture and Rural Affairs, China; College of Life Science and Biotechnology, Heilongjiang Bayi Agricultural University, Daqing, Heilongjiang 163319, China; Corresponding author at: Heilongjiang Provincial Key Laboratory of Environmental Microbiology and Recycling of Argo‑Waste in Cold Region, College of Life Science and Biotechnology, Heilongjiang Bayi Agricultural University, Daqing, Heilongjiang 163319, China.Heilongjiang Provincial Key Laboratory of Environmental Microbiology and Recycling of Argo‑Waste in Cold Region, College of Life Science and Biotechnology, Heilongjiang Bayi Agricultural University, Daqing, Heilongjiang 163319, ChinaHeilongjiang Provincial Key Laboratory of Environmental Microbiology and Recycling of Argo‑Waste in Cold Region, College of Life Science and Biotechnology, Heilongjiang Bayi Agricultural University, Daqing, Heilongjiang 163319, ChinaHeilongjiang Provincial Key Laboratory of Environmental Microbiology and Recycling of Argo‑Waste in Cold Region, College of Life Science and Biotechnology, Heilongjiang Bayi Agricultural University, Daqing, Heilongjiang 163319, ChinaHeilongjiang Provincial Key Laboratory of Environmental Microbiology and Recycling of Argo‑Waste in Cold Region, College of Life Science and Biotechnology, Heilongjiang Bayi Agricultural University, Daqing, Heilongjiang 163319, ChinaHeilongjiang Provincial Key Laboratory of Environmental Microbiology and Recycling of Argo‑Waste in Cold Region, College of Life Science and Biotechnology, Heilongjiang Bayi Agricultural University, Daqing, Heilongjiang 163319, ChinaColleges of Animal Science and Technology, Heilongjiang Bayi Agricultural University, Daqing, Heilongjiang 163319, ChinaCarbon-nanotube-modified biochar (CNT3-CBC) with a nanostructured surface was prepared by using cattle manure as the raw material via the impregnation method. This modified biochar was then used to adsorb petroleum and Ni(II) from aqueous solutions. Various physicochemical characterization techniques were employed, including SEM, BET analysis, FTIR, and XPS. Kinetic and isothermal adsorption characteristics were analyzed. The influence of different biochar dosages, solution pH levels, and number of adsorption cycles on the efficiency of removal of crude oil and Ni(II) was meticulously evaluated. Results indicated that modified biochar had a higher surface area, a greater number of surface functional groups, and higher interaction forces compared to biochar. Adsorption kinetics and isotherms showed that modified biochar had a strong adsorption capacity. The experimental data conformed closely to the Elovich, Langmuir, and Freundlich adsorption models, underscoring the significant contributions of both physical and chemical adsorption mechanisms. Competitive adsorption of modified biochar in the co-sorption of petroleum and nickel solutions exists, and the modified biochar demonstrated high capacities for crude oil and Ni(II) in the competitive adsorption. The modified biochar prepared at a pyrolysis temperature of 800°C exhibited a superior adsorption performance, and the adsorption capacities of crude oil and Ni(II) were 303.03 mg·g−1 and 32.87 mg·g-¹ , respectively. Modified biochar has better regeneration potential after crude oil and Ni(II) adsorption, with the removal efficiency remaining above 50 % in the fourth cycle. As an efficient and environmentally friendly adsorbent, modified biochar shows great potential for removing crude oil and Ni(II) pollutants from water.http://www.sciencedirect.com/science/article/pii/S0147651324016336Modified biocharCrude oilHeavy metal Ni(II)Competitive adsorption |
| spellingShingle | Di Cao Ruiyan Niu Guanglu Mo Huiwen Deng Rui Liu Jie Liu Jialin Fan Adsorption properties and competitive adsorption mechanism exhibited by carbon-nanotube-modified biochar for removal of crude oil and Ni(II) pollutants from water Ecotoxicology and Environmental Safety Modified biochar Crude oil Heavy metal Ni(II) Competitive adsorption |
| title | Adsorption properties and competitive adsorption mechanism exhibited by carbon-nanotube-modified biochar for removal of crude oil and Ni(II) pollutants from water |
| title_full | Adsorption properties and competitive adsorption mechanism exhibited by carbon-nanotube-modified biochar for removal of crude oil and Ni(II) pollutants from water |
| title_fullStr | Adsorption properties and competitive adsorption mechanism exhibited by carbon-nanotube-modified biochar for removal of crude oil and Ni(II) pollutants from water |
| title_full_unstemmed | Adsorption properties and competitive adsorption mechanism exhibited by carbon-nanotube-modified biochar for removal of crude oil and Ni(II) pollutants from water |
| title_short | Adsorption properties and competitive adsorption mechanism exhibited by carbon-nanotube-modified biochar for removal of crude oil and Ni(II) pollutants from water |
| title_sort | adsorption properties and competitive adsorption mechanism exhibited by carbon nanotube modified biochar for removal of crude oil and ni ii pollutants from water |
| topic | Modified biochar Crude oil Heavy metal Ni(II) Competitive adsorption |
| url | http://www.sciencedirect.com/science/article/pii/S0147651324016336 |
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