Study of degradation of p-toluic acid by photo-oxidation, peroxidation, photo-peroxidation and photo-fenton processes
| Autor: | Susmita A. Mandavgane |
|---|---|
| Rok vydání: | 2020 |
| Předmět: |
inorganic chemicals
010302 applied physics Terephthalic acid Aqueous solution genetic structures 02 engineering and technology 021001 nanoscience & nanotechnology First order 01 natural sciences p-Toluic acid chemistry.chemical_compound Mercury vapour chemistry Wastewater 0103 physical sciences Degradation (geology) sense organs 0210 nano-technology Photodegradation Nuclear chemistry |
| Zdroj: | Materials Today: Proceedings. 29:1213-1216 |
| ISSN: | 2214-7853 |
| DOI: | 10.1016/j.matpr.2020.05.478 |
| Popis: | p-Toluic acid is a major content of terephthalic acid wastewater and is a cause of secondary water pollution. p-Toluic acid in aqueous solution was degraded by using photo-fenton, photo-peroxidation, photo-oxidation and peroxidation processes. A low-pressure mercury vapour lamp was taken in combination with different oxidants to degrade p- toluic acid in this study. Substrate concentration was fixed by utilizing a UV–Visible spectrophotometer. The results indicated that photo-fenton process achieved degradation rate due to synergistic effect between UV and Fe2+/H2O2. The degradation rate follow the sequence: photofenton (UV/ Fe2+/H2O2) > photo-peroxidation (UV/H2O2) > photo-oxidation (UV) > peroxidation (H2O2). The photodegradation processes were adhered to first order dynamics. |
| Databáze: | OpenAIRE |
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