Enhanced Degradation of Rhodamine B by Metallic Organic Frameworks Based on NH<sub>2</sub>-MIL-125(Ti) under Visible Light
Samples of the bimetallic-based NH<sub>2</sub>-MIL-125(Ti) at a ratio of M<sup>n+</sup>/Ti<sup>4+</sup> is 0.15 (M<sup>n+</sup>: Ni<sup>2+</sup>, Co<sup>2+</sup> and Fe<sup>3+</sup>) were first synthesized using the...
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2021-12-01
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| Online Access: | https://www.mdpi.com/1996-1944/14/24/7741 |
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| author | Hong-Tham Nguyen Thi Kim-Ngan Tran Thi Ngoc Bich Hoang Bich Thuy Tran Trung Sy Do Chi Sy Phung Kim-Oanh Nguyen Thi |
| author_facet | Hong-Tham Nguyen Thi Kim-Ngan Tran Thi Ngoc Bich Hoang Bich Thuy Tran Trung Sy Do Chi Sy Phung Kim-Oanh Nguyen Thi |
| author_sort | Hong-Tham Nguyen Thi |
| collection | DOAJ |
| description | Samples of the bimetallic-based NH<sub>2</sub>-MIL-125(Ti) at a ratio of M<sup>n+</sup>/Ti<sup>4+</sup> is 0.15 (M<sup>n+</sup>: Ni<sup>2+</sup>, Co<sup>2+</sup> and Fe<sup>3+</sup>) were first synthesized using the solvothermal method. Their fundamental properties were analyzed by X-ray diffraction (XRD), Fourier transform infrared spectroscopy (FTIR), Raman spectra, scanning electron microscopy (SEM), N<sub>2</sub> adsorption–desorption measurements, and UV–Vis diffuse reflectance spectroscopy (UV-Vis DRS). The as-acquired materials were used as high-efficiency heterogeneous photocatalysts to remove Rhodamine B (RhB) dye under visible light. The results verified that 82.4% of the RhB (3 × 10<sup>−5</sup> M) was degraded within 120 min by 15% Fe/Ti−MOFs. Furthermore, in the purpose of degrading Rhodamine B (RhB), the rate constant for the 15% Fe/Ti-MOFs was found to be 2.6 times as fast as that of NH<sub>2</sub>-MIL-125(Ti). Moreover, the 15% Fe/Ti-MOFs photocatalysts remained stable after three consecutive cycles. The trapping test demonstrated that the major active species in the degradation of the RhB process were hydroxyl radicals (HO<sup>∙</sup>) and holes (h<sup>+</sup>). |
| first_indexed | 2024-03-10T03:38:58Z |
| format | Article |
| id | doaj.art-4983ecfa646341b9b4cb1c7d8bc5a721 |
| institution | Directory Open Access Journal |
| issn | 1996-1944 |
| language | English |
| last_indexed | 2024-03-10T03:38:58Z |
| publishDate | 2021-12-01 |
| publisher | MDPI AG |
| record_format | Article |
| series | Materials |
| spelling | doaj.art-4983ecfa646341b9b4cb1c7d8bc5a7212023-11-23T09:22:35ZengMDPI AGMaterials1996-19442021-12-011424774110.3390/ma14247741Enhanced Degradation of Rhodamine B by Metallic Organic Frameworks Based on NH<sub>2</sub>-MIL-125(Ti) under Visible LightHong-Tham Nguyen Thi0Kim-Ngan Tran Thi1Ngoc Bich Hoang2Bich Thuy Tran3Trung Sy Do4Chi Sy Phung5Kim-Oanh Nguyen Thi6Institute of Environmental Sciences, Nguyen Tat Thanh University, Ho Chi Minh City 70000, VietnamInstitute of Environmental Sciences, Nguyen Tat Thanh University, Ho Chi Minh City 70000, VietnamInstitute of Environmental Sciences, Nguyen Tat Thanh University, Ho Chi Minh City 70000, VietnamInstitute of Environmental Science, Engineering and Management, Industrial University of Ho Chi Minh City, Ho Chi Minh City 70000, VietnamInstitute of Chemistry, Vietnam Academy of Science and Technology, Hanoi City 10000, VietnamInstitute of Environmental Sciences, Nguyen Tat Thanh University, Ho Chi Minh City 70000, VietnamInstitute of Environmental Sciences, Nguyen Tat Thanh University, Ho Chi Minh City 70000, VietnamSamples of the bimetallic-based NH<sub>2</sub>-MIL-125(Ti) at a ratio of M<sup>n+</sup>/Ti<sup>4+</sup> is 0.15 (M<sup>n+</sup>: Ni<sup>2+</sup>, Co<sup>2+</sup> and Fe<sup>3+</sup>) were first synthesized using the solvothermal method. Their fundamental properties were analyzed by X-ray diffraction (XRD), Fourier transform infrared spectroscopy (FTIR), Raman spectra, scanning electron microscopy (SEM), N<sub>2</sub> adsorption–desorption measurements, and UV–Vis diffuse reflectance spectroscopy (UV-Vis DRS). The as-acquired materials were used as high-efficiency heterogeneous photocatalysts to remove Rhodamine B (RhB) dye under visible light. The results verified that 82.4% of the RhB (3 × 10<sup>−5</sup> M) was degraded within 120 min by 15% Fe/Ti−MOFs. Furthermore, in the purpose of degrading Rhodamine B (RhB), the rate constant for the 15% Fe/Ti-MOFs was found to be 2.6 times as fast as that of NH<sub>2</sub>-MIL-125(Ti). Moreover, the 15% Fe/Ti-MOFs photocatalysts remained stable after three consecutive cycles. The trapping test demonstrated that the major active species in the degradation of the RhB process were hydroxyl radicals (HO<sup>∙</sup>) and holes (h<sup>+</sup>).https://www.mdpi.com/1996-1944/14/24/7741metal–organic frameworkRhBbimetallicdegradationkinetic |
| spellingShingle | Hong-Tham Nguyen Thi Kim-Ngan Tran Thi Ngoc Bich Hoang Bich Thuy Tran Trung Sy Do Chi Sy Phung Kim-Oanh Nguyen Thi Enhanced Degradation of Rhodamine B by Metallic Organic Frameworks Based on NH<sub>2</sub>-MIL-125(Ti) under Visible Light Materials metal–organic framework RhB bimetallic degradation kinetic |
| title | Enhanced Degradation of Rhodamine B by Metallic Organic Frameworks Based on NH<sub>2</sub>-MIL-125(Ti) under Visible Light |
| title_full | Enhanced Degradation of Rhodamine B by Metallic Organic Frameworks Based on NH<sub>2</sub>-MIL-125(Ti) under Visible Light |
| title_fullStr | Enhanced Degradation of Rhodamine B by Metallic Organic Frameworks Based on NH<sub>2</sub>-MIL-125(Ti) under Visible Light |
| title_full_unstemmed | Enhanced Degradation of Rhodamine B by Metallic Organic Frameworks Based on NH<sub>2</sub>-MIL-125(Ti) under Visible Light |
| title_short | Enhanced Degradation of Rhodamine B by Metallic Organic Frameworks Based on NH<sub>2</sub>-MIL-125(Ti) under Visible Light |
| title_sort | enhanced degradation of rhodamine b by metallic organic frameworks based on nh sub 2 sub mil 125 ti under visible light |
| topic | metal–organic framework RhB bimetallic degradation kinetic |
| url | https://www.mdpi.com/1996-1944/14/24/7741 |
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