Bi-metalic ZIFs(Zn-M) (M: Co, Ni) for photocatalytic removal of organic pollutants in aqueous solutions
In this study, we successfully synthesised bi-metallic ZIF(Zn-M) of 2-methyl imidazole with a second metal (cobalt or nickel) binding to the ZIF network. All ZIF samples were synthesised at room temperature and characterised by using XRD, FT-IR, SEM, DRS, and nitrogen adsorption and desorption isot...
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| Format: | Article |
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HUJOS
2023-06-01
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| Series: | Tạp chí Khoa học Đại học Huế: Khoa học Tự nhiên |
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| Online Access: | https://jos.hueuni.edu.vn/index.php/hujos-ns/article/view/6886 |
| _version_ | 1797302305166458880 |
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| author | Hoang Phuc Nguyen Thanh Nhan Nguyen Soo-Wohn Lee Anh Son Pham Mai Ha Hoang |
| author_facet | Hoang Phuc Nguyen Thanh Nhan Nguyen Soo-Wohn Lee Anh Son Pham Mai Ha Hoang |
| author_sort | Hoang Phuc Nguyen |
| collection | DOAJ |
| description |
In this study, we successfully synthesised bi-metallic ZIF(Zn-M) of 2-methyl imidazole with a second metal (cobalt or nickel) binding to the ZIF network. All ZIF samples were synthesised at room temperature and characterised by using XRD, FT-IR, SEM, DRS, and nitrogen adsorption and desorption isotherms. The materials have high crystallinity with a large surface area. The materials’ photocatalytic ability was examined via the degradation of indigo carmine under a sun-light simulator. The second metal enhanced the photon harvesting ability of ZIF(Zn) because the materials can absorb photons in both UV and visible regions. Of the two catalysts, ZIF(Zn-Co) exhibited high photocatalytic ability when it removed 100% of indigo carmine from an aqueous solution. The catalyst adsorbed 45% of indigo carmine after 2 h and entirely degraded the remaining dye dring 1.5 h of solar irradiation. While Co2+ increased the catalyst’s surface area, Ni2+ reduced it, leading to lower photocatalytic efficiency.
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| first_indexed | 2024-03-07T23:34:53Z |
| format | Article |
| id | doaj.art-ccdac2976a7a42c9bf8b8690ebb068b1 |
| institution | Directory Open Access Journal |
| issn | 1859-1388 2615-9678 |
| language | English |
| last_indexed | 2024-03-07T23:34:53Z |
| publishDate | 2023-06-01 |
| publisher | HUJOS |
| record_format | Article |
| series | Tạp chí Khoa học Đại học Huế: Khoa học Tự nhiên |
| spelling | doaj.art-ccdac2976a7a42c9bf8b8690ebb068b12024-02-20T09:14:54ZengHUJOSTạp chí Khoa học Đại học Huế: Khoa học Tự nhiên1859-13882615-96782023-06-011321B10.26459/hueunijns.v132i1B.6886Bi-metalic ZIFs(Zn-M) (M: Co, Ni) for photocatalytic removal of organic pollutants in aqueous solutionsHoang Phuc Nguyen0Thanh Nhan Nguyen1Soo-Wohn Lee2Anh Son Pham3Mai Ha Hoang4Graduate University of Science and Technology, Vietnam Academy of Science and Technology, 18 Hoang Quoc Viet, Cau Giay, Hanoi, VietnamInstitute of Chemistry, Vietnam Academy of Science and Technology, 18 Hoang Quoc Viet, Cau Giay, Hanoi, VietnamDepartment of Environmental & Bio-Chemical Engineering, Sun Moon University, Asan, South KoreaDepartment of Inorganic Chemistry, VNU University of Science, Vietnam National University, Hanoi, 19 Le Thanh Tong, Hoan Kiem, Hanoi, VietnamInstitute of Chemistry, Vietnam Academy of Science and Technology, 18 Hoang Quoc Viet, Cau Giay, Hanoi, Vietnam In this study, we successfully synthesised bi-metallic ZIF(Zn-M) of 2-methyl imidazole with a second metal (cobalt or nickel) binding to the ZIF network. All ZIF samples were synthesised at room temperature and characterised by using XRD, FT-IR, SEM, DRS, and nitrogen adsorption and desorption isotherms. The materials have high crystallinity with a large surface area. The materials’ photocatalytic ability was examined via the degradation of indigo carmine under a sun-light simulator. The second metal enhanced the photon harvesting ability of ZIF(Zn) because the materials can absorb photons in both UV and visible regions. Of the two catalysts, ZIF(Zn-Co) exhibited high photocatalytic ability when it removed 100% of indigo carmine from an aqueous solution. The catalyst adsorbed 45% of indigo carmine after 2 h and entirely degraded the remaining dye dring 1.5 h of solar irradiation. While Co2+ increased the catalyst’s surface area, Ni2+ reduced it, leading to lower photocatalytic efficiency. https://jos.hueuni.edu.vn/index.php/hujos-ns/article/view/6886ZIF(Zn-Co)bimetallic ZIFphotocatalytic removalindigo carmineorganic pollutant |
| spellingShingle | Hoang Phuc Nguyen Thanh Nhan Nguyen Soo-Wohn Lee Anh Son Pham Mai Ha Hoang Bi-metalic ZIFs(Zn-M) (M: Co, Ni) for photocatalytic removal of organic pollutants in aqueous solutions Tạp chí Khoa học Đại học Huế: Khoa học Tự nhiên ZIF(Zn-Co) bimetallic ZIF photocatalytic removal indigo carmine organic pollutant |
| title | Bi-metalic ZIFs(Zn-M) (M: Co, Ni) for photocatalytic removal of organic pollutants in aqueous solutions |
| title_full | Bi-metalic ZIFs(Zn-M) (M: Co, Ni) for photocatalytic removal of organic pollutants in aqueous solutions |
| title_fullStr | Bi-metalic ZIFs(Zn-M) (M: Co, Ni) for photocatalytic removal of organic pollutants in aqueous solutions |
| title_full_unstemmed | Bi-metalic ZIFs(Zn-M) (M: Co, Ni) for photocatalytic removal of organic pollutants in aqueous solutions |
| title_short | Bi-metalic ZIFs(Zn-M) (M: Co, Ni) for photocatalytic removal of organic pollutants in aqueous solutions |
| title_sort | bi metalic zifs zn m m co ni for photocatalytic removal of organic pollutants in aqueous solutions |
| topic | ZIF(Zn-Co) bimetallic ZIF photocatalytic removal indigo carmine organic pollutant |
| url | https://jos.hueuni.edu.vn/index.php/hujos-ns/article/view/6886 |
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