A SnO2/CeO2 Nano-Composite Catalyst for Alizarin Dye Removal from Aqueous Solutions

Saad  S. M. Hassan; Ayman  H. Kamel; Amr  A. Hassan; Abd  El-Galil E. Amr; Heba  Abd El-Naby; Elsayed  A. Elsayed

doi:10.3390/nano10020254

Nanomaterials (Feb 2020)

A SnO2/CeO2 Nano-Composite Catalyst for Alizarin Dye Removal from Aqueous Solutions

Saad S. M. Hassan,
Ayman H. Kamel,
Amr A. Hassan,
Abd El-Galil E. Amr,
Heba Abd El-Naby,
Elsayed A. Elsayed

Affiliations

Saad S. M. Hassan: Chemistry Department, Faculty of Science, Ain Shams University, Abbasia 11566, Cairo, Egypt
Ayman H. Kamel: Chemistry Department, Faculty of Science, Ain Shams University, Abbasia 11566, Cairo, Egypt
Amr A. Hassan: Chemistry Department, Faculty of Science, Ain Shams University, Abbasia 11566, Cairo, Egypt
Abd El-Galil E. Amr: Pharmaceutical Chemistry Department, Drug Exploration & Development Chair (DEDC), College of Pharmacy, King Saud University, Riyadh 11451, Saudi Arabia
Heba Abd El-Naby: Chemistry Department, Faculty of Science, Ain Shams University, Abbasia 11566, Cairo, Egypt
Elsayed A. Elsayed: Bioproducts Research Department, Zoology Department, Faculty of Science, King Saud University, Riyadh 11451, Saudi Arabia

DOI: https://doi.org/10.3390/nano10020254
Journal volume & issue: Vol. 10, no. 2
p. 254

Abstract

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A new SnO2/CeO2 nano-composite catalyst was synthesized, characterized and used for the removal of alizarin dyes from aqueous solutions. The composite material was prepared using a precipitation method. X-ray powder diffractometry (XRD), high resolution transmission electron microscopy (HR-TEM), Brunauer−Emmett−Teller methodology (BET) and Fourier Transform Infrared Spectrometry (ATR-FTIR) were utilized for the characterization of the prepared composite. The prepared nano-composite revealed high affinity for the adsorption and decomposition of alizarin dyes. The adsorption capacity under different experimental conditions (adsorbate concentration, contact time, adsorbent dose and pH) was examined. Under optimized experimental conditions, the removal of alizarin yellow, alizarin red and alizarin-3-methylimino-diacetic acid dyes from aqueous solutions was about 96.4%,87.8% and 97.3%, respectively. The adsorption isotherms agreed with the models of Langmuir, Freundlich and Temkin isotherms.

Published in Nanomaterials

ISSN: 2079-4991 (Online)
Publisher: MDPI AG
Country of publisher: Switzerland
LCC subjects: Science: Chemistry
Website: https://www.mdpi.com/journal/nanomaterials

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