Photocatalytic Degradation of Methylene Blue by Magnetic Opal/Fe3O4 Colloidal Crystals under Visible Light Irradiation-Reference-Cited by-同舟云学术

Photocatalytic Degradation of Methylene Blue by Magnetic Opal/Fe3O4 Colloidal Crystals under Visible Light Irradiation

Published:2023-10-08 Issue:4 Volume:3 Page:390-407
ISSN:2673-7256
Container-title:Photochem
language:en
Short-container-title:Photochem

Author:

Carmona-Carmona Abraham Jorge¹^ORCID,Mora Enrique Sánchez²^ORCID,Flores Jesús Ivan Peña²,Márquez-Beltrán César²,Castañeda-Antonio María Dolores³^ORCID,González-Reyna Marlén Alexis⁴^ORCID,Barrera María Concepción⁵,Misaghian Khashayar⁶⁷,Lugo Jesús Eduardo¹⁶⁷,Toledo-Solano Miller⁸

Affiliation:

1. Facultad de Ciencias Físico-Matemáticas, Benemérita Universidad Autónoma de Puebla, Puebla 72570, Mexico

2. Instituto de Física “Luis Rivera Terrazas”, Benemérita Universidad Autónoma de Puebla, Puebla 72570, Mexico

3. Centro en Investigaciones en Ciencias Microbiológicas, Instituto de Ciencias BUAP, Puebla 72570, Mexico

4. Centro de Física Aplicada y Tecnología Avanzada, Universidad Autónoma de México, Campus UNAM 3001, Querétaro 76230, Mexico

5. Facultad de Ciencias Químicas, Universidad Veracruzana, Coatzacoalcos 96538, Mexico

6. Faubert Lab, Université de Montréal, Montreal, QC H3T 1P1, Canada

7. Sage-Sentinel Smart Solutions, 1919-1 Tancha, Onna-son, Kunigami-gun, Okinawa 904-0495, Japan

8. CONAHCYT-Facultad de Ciencias Físico-Matemáticas, Benemérita Universidad Autónoma de Puebla, Puebla 72570, Mexico

Abstract

In this study, opal–magnetite photocatalysts based on SiO2 artificial opal crystals infiltrated with different concentrations of Fe3O4 nanoparticles (NPs) were synthesized using a combination of lateral infiltration and co-assembly methods. By adjusting the concentration of Fe3O4 NPs in the SiO2 opal crystal, the energy band gap (Eg) was tuned to enable efficient degradation of methylene blue (MB) under visible light (410 nm and 575 nm). The photocatalytic process involved two stages: MB adsorption on the surface due to charge differences in the composite film and subsequent degradation through oxidative radicals on the catalyst’s surface. The developed material exhibited potential for applications in water remediation.

Funder

CONAHCYT

Publisher

MDPI AG

Subject

General Earth and Planetary Sciences,General Environmental Science

Link

https://www.mdpi.com/2673-7256/3/4/24/pdf

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