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Photocatalytic degradation of aniline in water using CuO nanoparticles
The removal of aniline as a carcinogen from aqueous environments is highly significant. In the present study, the feasibility of photocatalytic degradation of aniline by CuO nanoparticles was evaluated. A batch reactor with an internal UV lamp was used and the effects of the parameters of pH (3-11), dosage of catalyst (0.01-0.1 g/L), initial concentration of aniline (50-250 mg/L), and duration of reaction (15-90 min) were investigated. The remaining concentration of aniline was determined by spectrophotometer at the wavelength of 198 nm. The Langmuir-Hinshelwood model was used for examining the kinetics of the reaction. The results showed that the degradation of aniline is maximum at pH 7. Also, the removal efficiency of 90.16% after 90 minutes of reaction in the case of initial concentration of 50 mg/L was obtained. The aniline degradation was elevated from 40 to 82% by increasing CuO nanoparticles’ dosage from 0.01 to 0.1 g/L. In addition, the obtained data properly fit with the Langmuir-Hinshelwood kinetic model and showed that the Kapp decreased from 0.029 to 0.016 min−1 by increasing of the initial concentration of aniline. Considering the obtained results, the UV/CuO process can be an effective method for removing aniline from aqueous solution.
Photocatalytic degradation of aniline in water using CuO nanoparticles
The removal of aniline as a carcinogen from aqueous environments is highly significant. In the present study, the feasibility of photocatalytic degradation of aniline by CuO nanoparticles was evaluated. A batch reactor with an internal UV lamp was used and the effects of the parameters of pH (3-11), dosage of catalyst (0.01-0.1 g/L), initial concentration of aniline (50-250 mg/L), and duration of reaction (15-90 min) were investigated. The remaining concentration of aniline was determined by spectrophotometer at the wavelength of 198 nm. The Langmuir-Hinshelwood model was used for examining the kinetics of the reaction. The results showed that the degradation of aniline is maximum at pH 7. Also, the removal efficiency of 90.16% after 90 minutes of reaction in the case of initial concentration of 50 mg/L was obtained. The aniline degradation was elevated from 40 to 82% by increasing CuO nanoparticles’ dosage from 0.01 to 0.1 g/L. In addition, the obtained data properly fit with the Langmuir-Hinshelwood kinetic model and showed that the Kapp decreased from 0.029 to 0.016 min−1 by increasing of the initial concentration of aniline. Considering the obtained results, the UV/CuO process can be an effective method for removing aniline from aqueous solution.
Photocatalytic degradation of aniline in water using CuO nanoparticles
Norzaee, Samira (author) / Djahed, Babak / Khaksefidi, Razieh / Mostafapour, Ferdos Kord
2017
Article (Journal)
English
Photocatalytic degradation of aniline in water using CuO nanoparticles
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