Synthesis of cubic p-NiO/n-In2O3 heterostructure as efficient photocatalyst for degradation of apramycin: Optimization of operating conditions

Karim Dizani, Sara; Torkian, Leila; Khodadadi, Zahra; Fazaeli, Reza; Safa, Saeed

doi:10.21608/ejchem.2022.110726.5044

Synthesis of cubic p-NiO/n-In2O3 heterostructure as efficient photocatalyst for degradation of apramycin: Optimization of operating conditions

Document Type : Original Article

Authors

¹ Department of applied chemistry, South Tehran Branch, Islamic Azad University, Tehran, Iran

² Department of Chemistry, South Tehran Branch, Islamic Azad University, Tehran, Iran

10.21608/ejchem.2022.110726.5044

Abstract

In this research, Indium oxide (In2O3), nickel oxide (NiO) and NiO/In2O3 heterostructure were synthesized and characterized using X-ray diffraction (XRD), Fourier-transform infrared spectroscopy (FTIR), scanning electron microscope (SEM), energy dispersive X-ray spectrometry (EDS)/Map, Brunauer, Emmett, Teller (BET)/Barrett, Joyner, Halenda (BJH) and UV–vis diffuse reflectance spectroscopy (DRS) techniques. The photocatalytic degradation of Apramycin (APR) from aqueous solutions studied by photocatalysts synthesized. In order to investigate the effect of parameters in degradation of APR, were used from response surface methodology (RSM). The effect of NiO/In2O3 (0.5:1) catalyst mass (g), time (min) and pH on degradation of APR evaluated. Design expert software is the best point to achieve the maximum degradation efficiency of APR 99.99%, in optimum conditions at pH 5.01, time 27.54 (min), mass of catalyst 0.03 (g).

Keywords