Production of zirconia materials from zircon for dye removal from wastewater

Document Type : Original Article

Authors

1 Water Pollution Research Department, Environmental Sciences Division, National Research Centre (NRC), Egypt

2 Water Pollution Research Department, National Research Center, El-Buhouth St., Dokki, Cairo, Egypt ‎P.O. 12622‎

3 Water Pollution Control Department, National Research Center, Dokki, Cairo, Egypt

4 Water Pollution Research Department, National Research Center, El-Buhouth St., Dokki, Cairo, ‎Egypt ‎

5 Chemistry Department, Faculty of Science, Helwan University, Ain-Helwan, Cairo, Egypt.

6 Renewable Energy Science and Engineering Department, Faculty of Postgraduate Studies for Advanced Sciences (PSAS), Beni-Suef University, Ain Helwan, Cairo, Egypt.

Abstract

Zirconia (ZrO2) is a noteworthy metal oxide because of its characteristics. It can be implemented in different applications; adsorption of pollutant, and photocatalytic oxidation.  The main focus of this research was to synthesize ZrO2 from low cost and locally available materials; zircon. As well the preparation of ZrO2 was conducted at different temperature procedures. Characterization of prepared materials was performed using X-ray diffraction (XRD), Fourier transform infrared spectra (FTIR) and scanning electron microscope (SEM) which confirmed the production of homogeneous spherical crystalline ZrO2 compared with commercial ZrO2. Moreover, ZrO2-500 was examined for removal of dye using adsorption and photocatalytic activities. The removal adsorptive capacity of ZrO2-500 for red dye 195 was decreased from 37.1 to 2.2 mg/g with increasing dose up to 3 g/L. Meanwhile, red dye was removed with rate constant of 0.132 - 0.324 h-1 under solar simulator. Finally, zirconia was successively prepared from low cost materials with lower energy and materials consumption.   

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