Effect of different types of activated carbon on the adsorption- reduction of Cr(Ⅵ) by mZVI/activated carbon
Based on the excellent adsorption performance of activated carbon(AC) and its characteristic of forming a microelectrolysis system with micro zero-valent iron(mZVI), various mZVI/ACs composite materials were synthesized by ball milling(BM) method, and the removal efficiencies of Cr(Ⅵ) by these mater...
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| Format: | Article |
| Language: | zho |
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Editorial Office of Industrial Water Treatment
2025-02-01
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| Series: | Gongye shui chuli |
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| Online Access: | https://www.iwt.cn/CN/10.19965/j.cnki.iwt.2024-0039 |
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| author | WANG Wenhao CHENG Yexing WANG Yuyin HOU Tingting WU Xiaofeng LI Yucai |
| author_facet | WANG Wenhao CHENG Yexing WANG Yuyin HOU Tingting WU Xiaofeng LI Yucai |
| author_sort | WANG Wenhao |
| collection | DOAJ |
| description | Based on the excellent adsorption performance of activated carbon(AC) and its characteristic of forming a microelectrolysis system with micro zero-valent iron(mZVI), various mZVI/ACs composite materials were synthesized by ball milling(BM) method, and the removal efficiencies of Cr(Ⅵ) by these materials were explored. The mechanism of the optimal composite material for Cr(Ⅵ) removal was analyzed. The results indicated that BM could effectively combine AC with mZVI, and mZVI/AC(wood) had a better removal effect on Cr(Ⅵ) under short-term ball milling conditions. Cr(Ⅵ) in the solution was mainly reduced by secondary Fe2+, and AC not only enhanced the adsorption of Cr(Ⅵ) by mZVI/AC, but also promoted the corrosion of mZVI, thereby enhancing the removal of Cr(Ⅵ). By monitoring the concentration changes of Cr(Ⅵ) and total Cr, and combining with solid-phase XPS analysis, it was speculated that the potential removal pathways of Cr(Ⅵ) by mZVI/AC(wood) involved adsorption-reduction process and reduction-chelation-precipitation process. |
| format | Article |
| id | doaj-art-2a5238e7b1d647858c620c049e2246df |
| institution | DOAJ |
| issn | 1005-829X |
| language | zho |
| publishDate | 2025-02-01 |
| publisher | Editorial Office of Industrial Water Treatment |
| record_format | Article |
| series | Gongye shui chuli |
| spelling | doaj-art-2a5238e7b1d647858c620c049e2246df2025-08-20T02:45:02ZzhoEditorial Office of Industrial Water TreatmentGongye shui chuli1005-829X2025-02-0145215015810.19965/j.cnki.iwt.2024-00391005-829X（2025）02-0150-09Effect of different types of activated carbon on the adsorption- reduction of Cr(Ⅵ) by mZVI/activated carbonWANG Wenhao0CHENG Yexing1WANG Yuyin2HOU Tingting3WU Xiaofeng4LI Yucai5Civil Engineering Department, Yancheng Institute of Technology, Yancheng 224051, ChinaCivil Engineering Department, Yancheng Institute of Technology, Yancheng 224051, ChinaCivil Engineering Department, Yancheng Institute of Technology, Yancheng 224051, ChinaCivil Engineering Department, Yancheng Institute of Technology, Yancheng 224051, ChinaCivil Engineering Department, Yancheng Institute of Technology, Yancheng 224051, ChinaYunnan Design Institute Group Co., Ltd., Kunming 650100, ChinaBased on the excellent adsorption performance of activated carbon(AC) and its characteristic of forming a microelectrolysis system with micro zero-valent iron(mZVI), various mZVI/ACs composite materials were synthesized by ball milling(BM) method, and the removal efficiencies of Cr(Ⅵ) by these materials were explored. The mechanism of the optimal composite material for Cr(Ⅵ) removal was analyzed. The results indicated that BM could effectively combine AC with mZVI, and mZVI/AC(wood) had a better removal effect on Cr(Ⅵ) under short-term ball milling conditions. Cr(Ⅵ) in the solution was mainly reduced by secondary Fe2+, and AC not only enhanced the adsorption of Cr(Ⅵ) by mZVI/AC, but also promoted the corrosion of mZVI, thereby enhancing the removal of Cr(Ⅵ). By monitoring the concentration changes of Cr(Ⅵ) and total Cr, and combining with solid-phase XPS analysis, it was speculated that the potential removal pathways of Cr(Ⅵ) by mZVI/AC(wood) involved adsorption-reduction process and reduction-chelation-precipitation process.https://www.iwt.cn/CN/10.19965/j.cnki.iwt.2024-0039cr(ⅵ)micro zero valent ironactivated carboncorrosionadsorption-reduction |
| spellingShingle | WANG Wenhao CHENG Yexing WANG Yuyin HOU Tingting WU Xiaofeng LI Yucai Effect of different types of activated carbon on the adsorption- reduction of Cr(Ⅵ) by mZVI/activated carbon Gongye shui chuli cr(ⅵ) micro zero valent iron activated carbon corrosion adsorption-reduction |
| title | Effect of different types of activated carbon on the adsorption- reduction of Cr(Ⅵ) by mZVI/activated carbon |
| title_full | Effect of different types of activated carbon on the adsorption- reduction of Cr(Ⅵ) by mZVI/activated carbon |
| title_fullStr | Effect of different types of activated carbon on the adsorption- reduction of Cr(Ⅵ) by mZVI/activated carbon |
| title_full_unstemmed | Effect of different types of activated carbon on the adsorption- reduction of Cr(Ⅵ) by mZVI/activated carbon |
| title_short | Effect of different types of activated carbon on the adsorption- reduction of Cr(Ⅵ) by mZVI/activated carbon |
| title_sort | effect of different types of activated carbon on the adsorption reduction of cr vi by mzvi activated carbon |
| topic | cr(ⅵ) micro zero valent iron activated carbon corrosion adsorption-reduction |
| url | https://www.iwt.cn/CN/10.19965/j.cnki.iwt.2024-0039 |
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