Methylene blue removal in a batch reactor using synthesized CdO nanoparticles

Subject Areas :

Kasra Behzad ¹ , Parisa Attarzade ² , Afarin Bahrami ³

1 - Assistant Prof. in Department of Physics, Shahr-e-Qods Branch, Islamic Azad University, Tehran, Iran
2 - M.Sc. student in Department of Chemical Engineering, Shahr-e-Qods Branch, Islamic Azad University, Tehran, Iran
3 - Assistant Prof. in Department of Physics, Islamshahr Branch, Islamic Azad University, Islamshahr, Iran

Received: 2021-06-16 Accepted : 2021-06-16 Published : 2021-05-22

Keywords: Methylene Blue, CdO nanoparticles, Dye degradation, Batch reactor, UV beam,

Abstract :

In the present research, CdO nanoparticles were synthesized using the chemical reduction method at six different temperatures. Due to have different calcination temperature, the nanoparticle were synthesized in different sizes. Structural and optical properties of nanoparticles were characterized using XRD and UV-Vis spectroscopy. Based on the results, the CdO nanoparticles have cubic structure with the particles size of 27 – 60 nanometer. To investigate the photocatalytic properties of CdO nanoparticles, dye degradation effect in the presence of CdO nanoparticles and UV beam was study in a batch reactor as a function of time at three different pH values. Studies have shown that the optical absorption was decrease as a function of time. The photocatalytic reaction revealed that the dye degradation in methylene blue was speeded up with increasing the pH value.

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