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Organo/Zn-Al LDH Nanocomposites for Cationic Dye Removal from Aqueous Media
Cationic dye sorption by Zn-Al-layered double hydroxides (LDHs) modified with anionic surfactants was examined using methylene blue (MB) dye as a compound model in aqueous solutions. The modification of Zn-Al LDHs was performed by reconstruction method using dodecyl sulfate anion (DS) solutions. DS...
Autores principales: | , , |
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Formato: | Online Artículo Texto |
Lenguaje: | English |
Publicado: |
Springer US
2016
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Materias: | |
Acceso en línea: | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC4848282/ https://www.ncbi.nlm.nih.gov/pubmed/27119156 http://dx.doi.org/10.1186/s11671-016-1402-0 |
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author | Starukh, G. Rozovik, O. Oranska, O. |
author_facet | Starukh, G. Rozovik, O. Oranska, O. |
author_sort | Starukh, G. |
collection | PubMed |
description | Cationic dye sorption by Zn-Al-layered double hydroxides (LDHs) modified with anionic surfactants was examined using methylene blue (MB) dye as a compound model in aqueous solutions. The modification of Zn-Al LDHs was performed by reconstruction method using dodecyl sulfate anion (DS) solutions. DS contained Zn-Al LDHs were characterized by XRD, FTIR, thermogravimetric, and SEM analysis. The reconstructed organo/Zn-Al LDHs comprise the crystalline phases (DS-intercalated LDHs, hydrotalcite), and the amorphous phase. The intercalation of DS ions into the interlayer galleries and DS adsorption on the surface of the LDHs occurred causing the MB adsorption on the external and its sorption in the internal surfaces of modified LDHs. The presence of DS greatly increased the affinity of organo/Zn-Al LDHs for MB due to hydrophobic interactions between the surfactants and the dye molecules. The optical properties of sorbed MB were studied. |
format | Online Article Text |
id | pubmed-4848282 |
institution | National Center for Biotechnology Information |
language | English |
publishDate | 2016 |
publisher | Springer US |
record_format | MEDLINE/PubMed |
spelling | pubmed-48482822016-05-16 Organo/Zn-Al LDH Nanocomposites for Cationic Dye Removal from Aqueous Media Starukh, G. Rozovik, O. Oranska, O. Nanoscale Res Lett Nano Express Cationic dye sorption by Zn-Al-layered double hydroxides (LDHs) modified with anionic surfactants was examined using methylene blue (MB) dye as a compound model in aqueous solutions. The modification of Zn-Al LDHs was performed by reconstruction method using dodecyl sulfate anion (DS) solutions. DS contained Zn-Al LDHs were characterized by XRD, FTIR, thermogravimetric, and SEM analysis. The reconstructed organo/Zn-Al LDHs comprise the crystalline phases (DS-intercalated LDHs, hydrotalcite), and the amorphous phase. The intercalation of DS ions into the interlayer galleries and DS adsorption on the surface of the LDHs occurred causing the MB adsorption on the external and its sorption in the internal surfaces of modified LDHs. The presence of DS greatly increased the affinity of organo/Zn-Al LDHs for MB due to hydrophobic interactions between the surfactants and the dye molecules. The optical properties of sorbed MB were studied. Springer US 2016-04-27 /pmc/articles/PMC4848282/ /pubmed/27119156 http://dx.doi.org/10.1186/s11671-016-1402-0 Text en © Starukh et al. 2016 Open AccessThis article is distributed under the terms of the Creative Commons Attribution 4.0 International License (http://creativecommons.org/licenses/by/4.0/), which permits unrestricted use, distribution, and reproduction in any medium, provided you give appropriate credit to the original author(s) and the source, provide a link to the Creative Commons license, and indicate if changes were made. |
spellingShingle | Nano Express Starukh, G. Rozovik, O. Oranska, O. Organo/Zn-Al LDH Nanocomposites for Cationic Dye Removal from Aqueous Media |
title | Organo/Zn-Al LDH Nanocomposites for Cationic Dye Removal from Aqueous Media |
title_full | Organo/Zn-Al LDH Nanocomposites for Cationic Dye Removal from Aqueous Media |
title_fullStr | Organo/Zn-Al LDH Nanocomposites for Cationic Dye Removal from Aqueous Media |
title_full_unstemmed | Organo/Zn-Al LDH Nanocomposites for Cationic Dye Removal from Aqueous Media |
title_short | Organo/Zn-Al LDH Nanocomposites for Cationic Dye Removal from Aqueous Media |
title_sort | organo/zn-al ldh nanocomposites for cationic dye removal from aqueous media |
topic | Nano Express |
url | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC4848282/ https://www.ncbi.nlm.nih.gov/pubmed/27119156 http://dx.doi.org/10.1186/s11671-016-1402-0 |
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