Synthesis, Characterization and Photocatalytic Performance of Calcined ZnCr-Layered Double Hydroxides

The development of new materials for performing photocatalytic processes to remove contaminants is an interesting and important research line due to the ever-increasing number of contaminants on our planet. In this sense, we developed a layered double hydroxide material based on Zn and Cr, which was...

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Autores principales: Somia Djelloul Bencherif, Juan Jesús Gallardo, Iván Carrillo-Berdugo, Abdellah Bahmani, Javier Navas
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Publicado: MDPI AG 2021
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spelling oai:doaj.org-article:37c090a279cb4a46ba6200bf0e69a8dd2021-11-25T18:32:01ZSynthesis, Characterization and Photocatalytic Performance of Calcined ZnCr-Layered Double Hydroxides10.3390/nano111130512079-4991https://doaj.org/article/37c090a279cb4a46ba6200bf0e69a8dd2021-11-01T00:00:00Zhttps://www.mdpi.com/2079-4991/11/11/3051https://doaj.org/toc/2079-4991The development of new materials for performing photocatalytic processes to remove contaminants is an interesting and important research line due to the ever-increasing number of contaminants on our planet. In this sense, we developed a layered double hydroxide material based on Zn and Cr, which was transformed into the corresponding oxide by heat treatment at 500 °C. Both materials were widely characterized for their elemental composition, and structural, morphological, optical and textural properties using several experimental techniques such as x-ray diffraction, x-ray photoelectron spectroscopy, scanning and transmission electron microscopy, Fourier transform infrared spectroscopy, UV-vis spectroscopy and physisorption techniques. In addition, the photocatalytic activity of both materials was analysed. The calcined one showed interesting photocatalytic activity in photodegradation tests using crystal violet dye. The operational parameters for the photocatalytic process using the calcined material were optimised, considering the pH, the initial concentration of the dye, the catalyst load, and the regeneration of the catalyst. The catalyst showed good photocatalytic activity, reaching a degradation of 100% in the optimised conditions and showing good performance after five photodegradation cycles.Somia Djelloul BencherifJuan Jesús GallardoIván Carrillo-BerdugoAbdellah BahmaniJavier NavasMDPI AGarticlelayered double hydroxides2D materialsmetal oxidesphotocatalysisChemistryQD1-999ENNanomaterials, Vol 11, Iss 3051, p 3051 (2021)
institution DOAJ
collection DOAJ
language EN
topic layered double hydroxides
2D materials
metal oxides
photocatalysis
Chemistry
QD1-999
spellingShingle layered double hydroxides
2D materials
metal oxides
photocatalysis
Chemistry
QD1-999
Somia Djelloul Bencherif
Juan Jesús Gallardo
Iván Carrillo-Berdugo
Abdellah Bahmani
Javier Navas
Synthesis, Characterization and Photocatalytic Performance of Calcined ZnCr-Layered Double Hydroxides
description The development of new materials for performing photocatalytic processes to remove contaminants is an interesting and important research line due to the ever-increasing number of contaminants on our planet. In this sense, we developed a layered double hydroxide material based on Zn and Cr, which was transformed into the corresponding oxide by heat treatment at 500 °C. Both materials were widely characterized for their elemental composition, and structural, morphological, optical and textural properties using several experimental techniques such as x-ray diffraction, x-ray photoelectron spectroscopy, scanning and transmission electron microscopy, Fourier transform infrared spectroscopy, UV-vis spectroscopy and physisorption techniques. In addition, the photocatalytic activity of both materials was analysed. The calcined one showed interesting photocatalytic activity in photodegradation tests using crystal violet dye. The operational parameters for the photocatalytic process using the calcined material were optimised, considering the pH, the initial concentration of the dye, the catalyst load, and the regeneration of the catalyst. The catalyst showed good photocatalytic activity, reaching a degradation of 100% in the optimised conditions and showing good performance after five photodegradation cycles.
format article
author Somia Djelloul Bencherif
Juan Jesús Gallardo
Iván Carrillo-Berdugo
Abdellah Bahmani
Javier Navas
author_facet Somia Djelloul Bencherif
Juan Jesús Gallardo
Iván Carrillo-Berdugo
Abdellah Bahmani
Javier Navas
author_sort Somia Djelloul Bencherif
title Synthesis, Characterization and Photocatalytic Performance of Calcined ZnCr-Layered Double Hydroxides
title_short Synthesis, Characterization and Photocatalytic Performance of Calcined ZnCr-Layered Double Hydroxides
title_full Synthesis, Characterization and Photocatalytic Performance of Calcined ZnCr-Layered Double Hydroxides
title_fullStr Synthesis, Characterization and Photocatalytic Performance of Calcined ZnCr-Layered Double Hydroxides
title_full_unstemmed Synthesis, Characterization and Photocatalytic Performance of Calcined ZnCr-Layered Double Hydroxides
title_sort synthesis, characterization and photocatalytic performance of calcined zncr-layered double hydroxides
publisher MDPI AG
publishDate 2021
url https://doaj.org/article/37c090a279cb4a46ba6200bf0e69a8dd
work_keys_str_mv AT somiadjelloulbencherif synthesischaracterizationandphotocatalyticperformanceofcalcinedzncrlayereddoublehydroxides
AT juanjesusgallardo synthesischaracterizationandphotocatalyticperformanceofcalcinedzncrlayereddoublehydroxides
AT ivancarrilloberdugo synthesischaracterizationandphotocatalyticperformanceofcalcinedzncrlayereddoublehydroxides
AT abdellahbahmani synthesischaracterizationandphotocatalyticperformanceofcalcinedzncrlayereddoublehydroxides
AT javiernavas synthesischaracterizationandphotocatalyticperformanceofcalcinedzncrlayereddoublehydroxides
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