Synthesis of NiFe₂O₄-LDH composites with high adsorption and photocatalytic activity for methyl orange degradation

Valencia López, Cristian Daniel and Zafra Calvo, Mario and Martín de Vidales Calvo, María José and Blanco Gutiérrez, Verónica and Atanes Sánchez, Evangelina and Merayo Cuevas, Noemí and Fernández Martínez, Francisco and Nieto-Márquez Ballesteros, Antonio and Santos García, Antonio Juan dos (2018). Synthesis of NiFe₂O₄-LDH composites with high adsorption and photocatalytic activity for methyl orange degradation. "Inorganics", v. 6 (n. 98); pp. 1-10. ISSN 2304-6740. https://doi.org/10.3390/inorganics6030098.

Description

Title: Synthesis of NiFe₂O₄-LDH composites with high adsorption and photocatalytic activity for methyl orange degradation
Author/s:
  • Valencia López, Cristian Daniel
  • Zafra Calvo, Mario
  • Martín de Vidales Calvo, María José
  • Blanco Gutiérrez, Verónica
  • Atanes Sánchez, Evangelina
  • Merayo Cuevas, Noemí
  • Fernández Martínez, Francisco
  • Nieto-Márquez Ballesteros, Antonio
  • Santos García, Antonio Juan dos
Item Type: Article
Título de Revista/Publicación: Inorganics
Date: 2018
ISSN: 2304-6740
Volume: 6
Subjects:
Freetext Keywords: Magnetic adsorbents; Magnetic nanoparticles; Photocatalysis; Layered Double Hydroxides; Water pollution; Methyl Orange degradation
Faculty: E.T.S.I. Diseño Industrial (UPM)
Department: Ingeniería Mecánica, Química y Diseño Industrial
Creative Commons Licenses: Recognition - No derivative works - Non commercial

Full text

[img]
Preview
PDF - Requires a PDF viewer, such as GSview, Xpdf or Adobe Acrobat Reader
Download (2MB) | Preview

Abstract

The presence of hazardous chemicals in wastewater produced by industrial activities and human metropoles is threating the availability of safe drinking water. The development of a multifunctional material coupling adsorption and photocatalytic activity is hereby particularly promising for the removal of pollutants. We have proved the adsorption and catalytic activity of NiFe₂O₄-layered double hydroxide (LDH) composite through the degradation of methyl orange (MO) at room temperature under visible light. This degradation is enhanced by using a set of small light-emitting diodes (LEDs) providing a uniform 405 nm UV light. The remediation process is based on a first-step rapid adsorption of MO molecules by the LDH structures followed by the photocatalytic oxidation of the pollutant by the (∙OH) radicals produced by the NiFe₂O₄ semiconductor nanoparticles (NPs). The magnetic properties of the ferrite NPs allow a facile separation of the composite from the liquid media via a simple magnet. NiFe₂O₄-LDH composite could find wide application as a highly effective adsorbent/oxidizing catalyst operating under visible or near UV light.

Funding Projects

TypeCodeAcronymLeaderTitle
Government of SpainMAT2017-84385-RUnspecifiedFacultad de Ciencias Químicas, Universidad ComplutenseMateriales funcionales: magnéticos y nanoestructurados

More information

Item ID: 66014
DC Identifier: https://oa.upm.es/66014/
OAI Identifier: oai:oa.upm.es:66014
DOI: 10.3390/inorganics6030098
Official URL: https://www.mdpi.com/2304-6740/6/3/98
Deposited by: Memoria Investigacion
Deposited on: 03 Feb 2021 11:01
Last Modified: 04 Feb 2021 08:06
  • Logo InvestigaM (UPM)
  • Logo GEOUP4
  • Logo Open Access
  • Open Access
  • Logo Sherpa/Romeo
    Check whether the anglo-saxon journal in which you have published an article allows you to also publish it under open access.
  • Logo Dulcinea
    Check whether the spanish journal in which you have published an article allows you to also publish it under open access.
  • Logo de Recolecta
  • Logo del Observatorio I+D+i UPM
  • Logo de OpenCourseWare UPM