A SnO(2)/CeO(2) Nano-Composite Catalyst for Alizarin Dye Removal from Aqueous Solutions

A new SnO(2)/CeO(2) 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),...

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Detalles Bibliográficos
Autores principales: Hassan, Saad S. M., Kamel, Ayman H., Hassan, Amr A., Amr, Abd El-Galil E., El-Naby, Heba Abd, Elsayed, Elsayed A.
Formato: Online Artículo Texto
Lenguaje:English
Publicado: MDPI 2020
Materias:
Article
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC7075236/
https://www.ncbi.nlm.nih.gov/pubmed/32024060
http://dx.doi.org/10.3390/nano10020254
Descripción
Sumario:A new SnO(2)/CeO(2) 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.

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