Investigation of Pb(II) adsorption by amine group enriched chitosan encapsulated iron oxides doped biochar for soil remediation
We propose the possibility of using chitosan-modified magnetic biochar (CMBC) as a potential green material for treating heavy metals (HMs) that exist and persist in the environment. Different functional groups present on CMBC have been studied by surface analyses such as energy dispersive X-ray (ED...
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Elsevier
2025-04-01
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| Series: | Carbon Trends |
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| Online Access: | http://www.sciencedirect.com/science/article/pii/S266705692500015X |
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| author | Hong-Hue Thi Nguyen Yong-Ho Choi Eun-Bi Kim Yong-Hoon Jeong Jae-Wook Lee Kyung-Hee Park Young-Jun Woo Sadia Ameen Dong-Heui Kwak |
| author_facet | Hong-Hue Thi Nguyen Yong-Ho Choi Eun-Bi Kim Yong-Hoon Jeong Jae-Wook Lee Kyung-Hee Park Young-Jun Woo Sadia Ameen Dong-Heui Kwak |
| author_sort | Hong-Hue Thi Nguyen |
| collection | DOAJ |
| description | We propose the possibility of using chitosan-modified magnetic biochar (CMBC) as a potential green material for treating heavy metals (HMs) that exist and persist in the environment. Different functional groups present on CMBC have been studied by surface analyses such as energy dispersive X-ray (EDX), Fourier transform infrared spectroscopy (FTIR), and X-ray photoelectron spectroscopy (XPS). Herein, Fe serves not only as a contributor to magnetism but also as a facilitator in the formation of bonds with Pb(II). The adsorption efficiency of Pb(II) by CMBC (1 % w/v) reached to ∼97.6 % in 60 min. With 200 ppm at initial Pb(II) concentration, CMBC showed an adsorption capacity of ∼88.75 mg·g−1. The adsorption mechanism of Pb(II) by CMBC was consistent with the pseudo-second-order kinetic model with R2 = 0.9997. During the adsorption of Pb(II) by CMBC, Langmuir isotherms delivered R2 = 0.9993 which was larger than the R2 = 0.9882 of Freundlich isotherm, indicating that Pb(II) adsorption mainly occurred on the surface of CMBC with the interaction between Pb(II) and functional groups. The adsorption efficiency of soluble Pb (Pb in soil) by CMBC reached ∼24.6 % after 5 days and ∼27 % after 7 days. This finding underscores that CMBC is capable of effectively removing HMs, such as Pb, in both aqueous and soil environments. |
| format | Article |
| id | doaj-art-d81806f10c304e2e8155c8cfac31e2aa |
| institution | OA Journals |
| issn | 2667-0569 |
| language | English |
| publishDate | 2025-04-01 |
| publisher | Elsevier |
| record_format | Article |
| series | Carbon Trends |
| spelling | doaj-art-d81806f10c304e2e8155c8cfac31e2aa2025-08-20T02:12:07ZengElsevierCarbon Trends2667-05692025-04-011910046510.1016/j.cartre.2025.100465Investigation of Pb(II) adsorption by amine group enriched chitosan encapsulated iron oxides doped biochar for soil remediationHong-Hue Thi Nguyen0Yong-Ho Choi1Eun-Bi Kim2Yong-Hoon Jeong3Jae-Wook Lee4Kyung-Hee Park5Young-Jun Woo6Sadia Ameen7Dong-Heui Kwak8Department of Bioactive Material Sciences, Jeonbuk National University, Jeonju 54896, Republic of KoreaInnovative research and education center for integrated bioactive materials, Jeonju 54896, Republic of KoreaDepartment of Bio-Convergence Science, Jeonbuk National University, Jeongeup 56212, Republic of KoreaDepartment of Bio-Convergence Science, Jeonbuk National University, Jeongeup 56212, Republic of KoreaDepartment of Biochemical Engineering, Chosun University, Gwangju 61452, Republic of KoreaDepartment of Biochemical Engineering, Chosun University, Gwangju 61452, Republic of KoreaKorea Biochar Agricultural Corporation Co. Ltd., Korea University of Agriculture and Fisheries Business Incubation Center, Jeonju 54874, Republic of KoreaDepartment of Bioactive Material Sciences, Jeonbuk National University, Jeonju 54896, Republic of Korea; Department of Bio-Convergence Science, Jeonbuk National University, Jeongeup 56212, Republic of Korea; Corresponding authors.Department of Bioactive Material Sciences, Jeonbuk National University, Jeonju 54896, Republic of Korea; Department of Bio-Convergence Science, Jeonbuk National University, Jeongeup 56212, Republic of Korea; Corresponding authors.We propose the possibility of using chitosan-modified magnetic biochar (CMBC) as a potential green material for treating heavy metals (HMs) that exist and persist in the environment. Different functional groups present on CMBC have been studied by surface analyses such as energy dispersive X-ray (EDX), Fourier transform infrared spectroscopy (FTIR), and X-ray photoelectron spectroscopy (XPS). Herein, Fe serves not only as a contributor to magnetism but also as a facilitator in the formation of bonds with Pb(II). The adsorption efficiency of Pb(II) by CMBC (1 % w/v) reached to ∼97.6 % in 60 min. With 200 ppm at initial Pb(II) concentration, CMBC showed an adsorption capacity of ∼88.75 mg·g−1. The adsorption mechanism of Pb(II) by CMBC was consistent with the pseudo-second-order kinetic model with R2 = 0.9997. During the adsorption of Pb(II) by CMBC, Langmuir isotherms delivered R2 = 0.9993 which was larger than the R2 = 0.9882 of Freundlich isotherm, indicating that Pb(II) adsorption mainly occurred on the surface of CMBC with the interaction between Pb(II) and functional groups. The adsorption efficiency of soluble Pb (Pb in soil) by CMBC reached ∼24.6 % after 5 days and ∼27 % after 7 days. This finding underscores that CMBC is capable of effectively removing HMs, such as Pb, in both aqueous and soil environments.http://www.sciencedirect.com/science/article/pii/S266705692500015XChitosanMagnetic biocharHeavy metalsSoil remediation |
| spellingShingle | Hong-Hue Thi Nguyen Yong-Ho Choi Eun-Bi Kim Yong-Hoon Jeong Jae-Wook Lee Kyung-Hee Park Young-Jun Woo Sadia Ameen Dong-Heui Kwak Investigation of Pb(II) adsorption by amine group enriched chitosan encapsulated iron oxides doped biochar for soil remediation Carbon Trends Chitosan Magnetic biochar Heavy metals Soil remediation |
| title | Investigation of Pb(II) adsorption by amine group enriched chitosan encapsulated iron oxides doped biochar for soil remediation |
| title_full | Investigation of Pb(II) adsorption by amine group enriched chitosan encapsulated iron oxides doped biochar for soil remediation |
| title_fullStr | Investigation of Pb(II) adsorption by amine group enriched chitosan encapsulated iron oxides doped biochar for soil remediation |
| title_full_unstemmed | Investigation of Pb(II) adsorption by amine group enriched chitosan encapsulated iron oxides doped biochar for soil remediation |
| title_short | Investigation of Pb(II) adsorption by amine group enriched chitosan encapsulated iron oxides doped biochar for soil remediation |
| title_sort | investigation of pb ii adsorption by amine group enriched chitosan encapsulated iron oxides doped biochar for soil remediation |
| topic | Chitosan Magnetic biochar Heavy metals Soil remediation |
| url | http://www.sciencedirect.com/science/article/pii/S266705692500015X |
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