Degradation of Diclofenac in Aqueous Solutions under Conditions of Combined Homogeneous and Heterogeneous Photocatalysis
| Autor: | Maria V. Sherstoboeva, K. A. Dychko, L. N. Skvortsova, K. A. Bolgaru |
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| Rok vydání: | 2020 |
| Předmět: |
Aqueous solution
Materials science chemistry.chemical_element Sorption 02 engineering and technology 010402 general chemistry 021001 nanoscience & nanotechnology Ceramic matrix composite Heterogeneous catalysis 01 natural sciences 0104 chemical sciences Catalysis chemistry Chemical engineering Photocatalysis Degradation (geology) Physical and Theoretical Chemistry 0210 nano-technology Boron |
| Zdroj: | Russian Journal of Physical Chemistry A. 94:1248-1253 |
| ISSN: | 1531-863X 0036-0244 |
| DOI: | 10.1134/s0036024420060242 |
| Popis: | The sorption and photocatalytic activities of metal–ceramic composites synthesized via self-propagating high-temperature synthesis (SHS) in the degradation of diclofenac (DCF) is studied. The phase composition and optical properties of the composites are studied, along with the bandgap energy of semiconductors that form part of a ceramic matrix were determined from electronic absorption spectra. The effects the phase composition, UV irradiation time, amount and nature of the added catalyst (H2C2O4, H2O2), and the composite’s weight have on the oxidative destruction of organic contaminant are studied to optimize the catalytic process. The combination of heterogeneous catalysis using composites based on boron and sialon with the homogeneous photo-Fenton system demonstrate the highest efficiency in the degradation of diclofenac. |
| Databáze: | OpenAIRE |
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