Comparative Study of the Photocatalytic Degradation of Crystal Violet Using Ferromagnetic Magnesium Oxide Nanoparticles and MgO-Bentonite Nanocomposite-Reference-Cited by-同舟云学术

Comparative Study of the Photocatalytic Degradation of Crystal Violet Using Ferromagnetic Magnesium Oxide Nanoparticles and MgO-Bentonite Nanocomposite

Published:2023-02-12 Issue:2 Volume:9 Page:56
ISSN:2312-7481
Container-title:Magnetochemistry
language:en
Short-container-title:Magnetochemistry

Author:

Elashery Sally E. A.¹,Ibrahim Islam²,Gomaa Hassanien³^ORCID,El-Bouraie Mohamed M.⁴^ORCID,Moneam Ihab A.⁵⁶,Fekry Shimaa S.⁴,Mohamed Gehad G.¹⁷

Affiliation:

1. Chemistry Department, Faculty of Science, Cairo University, Giza 12613, Egypt

2. Department of Chemistry, Faculty of Science, Al-Azhar University, Nasr City, Cairo 11884, Egypt

3. Department of Chemistry, Faculty of Science, Al-Azhar University, Assiut 71524, Egypt

4. Central Laboratory for Environmental Quality Monitoring (CLEQM), National Water Research Center (NWRC), El-Qanater El-Khairiya 13621, Egypt

5. Supplementary General Sciences Department, Faculty of Dentistry, Future University, New Cairo 11835, Egypt

6. Clinical Laboratory Sciences Department, College of Pharmacy, Al Maaqal University, Al Basrah 61015, Iraq

7. Nanoscience Department, Basic and Applied Sciences Institute, Egypt-Japan University of Science and Technology, New Borg El Arab, Alexandria 21932, Egypt

Abstract

In this work, the exploitation of the synthesized magnesium oxide nanoparticles and MgO-bentonite nanocomposite as an effective photocatalyst has been reported. They were utilized to study their applicability for the photocatalytic degradation of crystal violet in wastewater. Fourier-transform infrared (FTIR) spectra, X-ray powder diffraction (XRPD), energy-dispersive X-ray spectroscopy (EDX), and transmission electron microscope (TEM) were used for characterization. The photocatalytic efficiency of the synthesized photocatalysts for CV decomposition has been optimized in terms of several factors such as pH, contact time, the dose of the catalyst, and the dye concentration. The maximum degradation efficiency of CV was found to be 99.19% at the optimum state of pH value of 7, using 0.2 g of MgO NPs, while in the case of MgO-bentonite nanocomposite, the maximum degradation efficiency was decreased to 83.38%. The photocatalytic reaction mechanism was investigated using the scavenging reaction process, revealing that holes were majorly responsible for the degradation of CV. The kinetic data were suitable and best fitted by the pseudo-first-order kinetic model.

Funder

Academy of Scientific Research and Technology

Publisher

MDPI AG

Subject

Materials Chemistry,Chemistry (miscellaneous),Electronic, Optical and Magnetic Materials

Link

https://www.mdpi.com/2312-7481/9/2/56/pdf

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