UV/Vis-Based Persulphate Activation for p-Nitrophenol Degradation
نویسندگان
چکیده
In the present work, degradation of p-nitrophenol (PNP) and its mineralization by a UV/Vis-based persulphate activation process was investigated. Firstly, screening processes as direct photolysis, alone activated radiation performed. The incidence demonstrated to have an important role in oxidant activation, allowing achieve highest PNP total organic carbon (TOC) removals. maximum oxidation (100%) (61.6%)—both after 2 h reaction time—were reached when using T = 70 °C, (S2O82?) 6.4 g/L I 500 W/m2. influence type (ultraviolet/visible, visible or simulated solar light) also evaluated, being found that source with emission ultraviolet (UV/visible) allowed best efficiency; however, very-good performance. According quenching experiments, sulphate radical is key process, but hydroxyl plays role.
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ژورنال
عنوان ژورنال: Catalysts
سال: 2021
ISSN: ['2073-4344']
DOI: https://doi.org/10.3390/catal11040480