Degradation of tetracycline by a novel MIL-101(Fe)/TiO2 composite with persulfate
| Autor: | Qingming Jia, Yanan Dong, Yaqin Zhang, Shaoyun Shan, Lei He, Yane Zheng |
|---|---|
| Rok vydání: | 2019 |
| Předmět: |
Materials science
Tetracycline Mechanical Engineering Radical Composite number 02 engineering and technology 010402 general chemistry 021001 nanoscience & nanotechnology Persulfate 01 natural sciences 0104 chemical sciences Catalysis Wastewater Mechanics of Materials medicine Degradation (geology) General Materials Science Irradiation 0210 nano-technology medicine.drug Nuclear chemistry |
| Zdroj: | Journal of Porous Materials. 26:1839-1850 |
| ISSN: | 1573-4854 1380-2224 |
| DOI: | 10.1007/s10934-019-00778-y |
| Popis: | An effective catalyst of MIL-101(Fe)/TiO2 composite was synthesized by solvothermal method. The resultant MIL-101(Fe)/TiO2 was used for advanced oxidation degradation of tetracycline (TC) for the first time. The results indicated that the MIL-101(Fe)/TiO2 showed higher TC degradation efficiency than pure MIL-101(Fe) or TiO2 with the persulfate. Using 1 g L−1 MIL-101(Fe)/TiO2 and persulfate at pH 7, 90.15% degradation rate was achieved under xenon lamp irradiation in 5 min for 20 mg L−1 TC. TiO2 introduced in the composite played an important role in the degradation process, in which TiO2 had a synergetic effect with Fe3+ to generate Fe2+, Ti3+ and radicals. Fe2+ reacted with persulfate to produce Fe3+ and a number of ·OH to degrade TC. This reaction process was so fast that MIL-101(Fe)/TiO2 with persulfate could degrade TC fairly rapidly. A novel TiO2-based metal–organic frameworks (MOFs) composite was more efficient for degrading pharmaceutical wastewater. |
| Databáze: | OpenAIRE |
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