Adsorption and Photodegradation of Lanasol Yellow 4G in Aqueous Solution by Natural Zeolite Treated by CO2-Laser Radiation

Author:

Correa-Coyac David1ORCID,Michtchenko Alexandre1ORCID,Zacahua-Tlacuatl Gregorio2ORCID,Cruz-Narváez Yair2ORCID,Castro-Arellano José J.2ORCID,Sanpedro-Díaz Monserrat2ORCID,Rivera-Talamantes Carlos F. de J.1ORCID,Shulga Yury M.3ORCID

Affiliation:

1. Instituto Politécnico Nacional, SEPI-ESIME-Zacatenco, Av. IPN S/N, Ed.5, 3-r piso, Ciudad de México 07738, Mexico

2. Laboratorio de Posgrado e Investigación de Operaciones Unitarias-ESIQIE, Instituto Politécnico Nacional, Zacatenco, UPALM, Zacatenco, Col. Lindavista, Ciudad de México 07738, Mexico

3. Federal Research Center of Problem of Chemical Physics and Medicinal Chemistry, Russian Academy of Sciences, Moscow 142432, Russia

Abstract

Natural zeolite is a widely used material with excellent environmental cleaning performance, especially in water and wastewater treatment. Natural zeolite (Zini) calcined by CO2-laser radiation (ZL) was tested as a catalyst for the photodegradation and the adsorption of industrial azo dye Lanasol Yellow 4G (LY4G) in water. Morphology, chemical structure, and surface composition of Zini and ZL were analyzed by XRD, SEM, EDS, and XPS. UV/Visible spectrophotometry was used to evaluate the photocatalytic activity of Zini and ZL. The photocatalytic activity of the studied zeolites was associated with the presence of Fe oxides in their composition. Laser-treated natural zeolite showed higher efficiency as a photocatalyst compared to untreated natural zeolite.

Funder

Instituto Politécnico Nacional

Consejo Nacional de Ciencia y Tecnología in the 2019 call “Apoyos para adquisición y mantenimiento de infraestructura en instituciones y laboratorios de investigación especializada”

call “Ciencia de Frontera”

Publisher

MDPI AG

Subject

General Materials Science

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