Degradation of rhodamine dye using a modified flow photocatalytic reactor in the presence of external oxidants DOI Open Access
Manisha V. Bagal,

Vijay B. Mane,

Harshal Ambulkar

et al.

The Canadian Journal of Chemical Engineering, Journal Year: 2024, Volume and Issue: unknown

Published: Dec. 10, 2024

Abstract The current work addresses the challenge of effectively degrading Rhodamine B dye, a common environmental pollutant using modified zig‐zag flow type photocatalytic reactor with main objective process intensification. A detailed study into effect initial dye concentration and operating solution pH on degradation elucidated that Rh was higher at lower (pH 2) an optimum (20 ppm) concentration. Among different photocatalysts studied including TiO 2 , ZnO, CaO, maximum seen for 83.3% loading (1 g/L). Lower degradations 76.2% 1.5 g/L ZnO 65.9% CaO were other photocatalysts. Additionally, introduction oxidants such as hydrogen peroxide Fenton reagent further intensified degradation, combined UV/Fenton achieving 94.8% highest COD removal 68.4%. Overall, it is recommended to utilize design Fenton's optimal degradation.

Language: Английский

Degradation of rhodamine dye using a modified flow photocatalytic reactor in the presence of external oxidants DOI Open Access
Manisha V. Bagal,

Vijay B. Mane,

Harshal Ambulkar

et al.

The Canadian Journal of Chemical Engineering, Journal Year: 2024, Volume and Issue: unknown

Published: Dec. 10, 2024

Abstract The current work addresses the challenge of effectively degrading Rhodamine B dye, a common environmental pollutant using modified zig‐zag flow type photocatalytic reactor with main objective process intensification. A detailed study into effect initial dye concentration and operating solution pH on degradation elucidated that Rh was higher at lower (pH 2) an optimum (20 ppm) concentration. Among different photocatalysts studied including TiO 2 , ZnO, CaO, maximum seen for 83.3% loading (1 g/L). Lower degradations 76.2% 1.5 g/L ZnO 65.9% CaO were other photocatalysts. Additionally, introduction oxidants such as hydrogen peroxide Fenton reagent further intensified degradation, combined UV/Fenton achieving 94.8% highest COD removal 68.4%. Overall, it is recommended to utilize design Fenton's optimal degradation.

Language: Английский

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