Improved production of titanate nanotubes by hydrothermal method for adsorption of organic dyes

Abstract Background Increasing the yield of nanomaterials using the same reactor size and fixing most of the reactants and conditions will greatly improve the production process by saving time, energy and efforts. Titanate nanotubes are mainly prepared by hydrothermal process, in which TiO2 powder r...

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Autores principales:	Ayman H. Zaki, Sara Adel, Mahmoud M. Abd El-hafiez, Ahmed A. Abdel-Khalek
Formato:	article
Lenguaje:	EN
Publicado:	SpringerOpen 2021
Materias:	Titanate Nanotubes Water treatment Organic dyes Adsorbent Large-scale production Medicine (General) R5-920 Science Q
Acceso en línea:	https://doaj.org/article/00752cd241634367abed4ea48369f799
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spelling	oai:doaj.org-article:00752cd241634367abed4ea48369f7992021-12-05T12:18:55ZImproved production of titanate nanotubes by hydrothermal method for adsorption of organic dyes10.1186/s43088-021-00175-y2314-8543https://doaj.org/article/00752cd241634367abed4ea48369f7992021-12-01T00:00:00Zhttps://doi.org/10.1186/s43088-021-00175-yhttps://doaj.org/toc/2314-8543Abstract Background Increasing the yield of nanomaterials using the same reactor size and fixing most of the reactants and conditions will greatly improve the production process by saving time, energy and efforts. Titanate nanotubes are mainly prepared by hydrothermal process, in which TiO2 powder reacts with NaOH at certain conditions to form the desired nanotubes. It was reported that it is a must to use high concentrations of NaOH (10 N) to enable the tubular form formation, and the amount of NaOH from the stoichiometry point of view is much higher than that of TiO2; this means excess amounts of NaOH are not used and washed off. This work was designed to improve the production yield by making use of this excess amount of NaOH. Results More than 60 g of sodium titanate nanotubes was prepared using simple hydrothermal method. The prepared nanotubes were characterized by X-ray powder diffraction, high-resolution transmission electron microscopy, Fourier-transform infrared spectroscopy and BET surface area analysis. The adsorption capacity of these nanotubes was tested against three commonly used dyes: methyl orange, crystal violet and thymol blue. The samples showed great affinity toward crystal violet and lower activity toward methyl orange and thymol blue, where they achieved more than 90% removal efficiency under different experimental conditions. Conclusions Sodium titanate nanotubes were prepared in large amounts using modified hydrothermal method. The obtained nanotubes efficiently removed crystal violet from water. This improved synthesis of titanate nanotubes will reduce the total cost of nanomaterials production, and subsequently the treatment process, since titanate nanotubes are used in adsorption and photocatalysis processes.Ayman H. ZakiSara AdelMahmoud M. Abd El-hafiezAhmed A. Abdel-KhalekSpringerOpenarticleTitanateNanotubesWater treatmentOrganic dyesAdsorbentLarge-scale productionMedicine (General)R5-920ScienceQENBeni-Suef University Journal of Basic and Applied Sciences, Vol 10, Iss 1, Pp 1-8 (2021)
institution	DOAJ
collection	DOAJ
language	EN
topic	Titanate Nanotubes Water treatment Organic dyes Adsorbent Large-scale production Medicine (General) R5-920 Science Q
spellingShingle	Titanate Nanotubes Water treatment Organic dyes Adsorbent Large-scale production Medicine (General) R5-920 Science Q Ayman H. Zaki Sara Adel Mahmoud M. Abd El-hafiez Ahmed A. Abdel-Khalek Improved production of titanate nanotubes by hydrothermal method for adsorption of organic dyes
description	Abstract Background Increasing the yield of nanomaterials using the same reactor size and fixing most of the reactants and conditions will greatly improve the production process by saving time, energy and efforts. Titanate nanotubes are mainly prepared by hydrothermal process, in which TiO2 powder reacts with NaOH at certain conditions to form the desired nanotubes. It was reported that it is a must to use high concentrations of NaOH (10 N) to enable the tubular form formation, and the amount of NaOH from the stoichiometry point of view is much higher than that of TiO2; this means excess amounts of NaOH are not used and washed off. This work was designed to improve the production yield by making use of this excess amount of NaOH. Results More than 60 g of sodium titanate nanotubes was prepared using simple hydrothermal method. The prepared nanotubes were characterized by X-ray powder diffraction, high-resolution transmission electron microscopy, Fourier-transform infrared spectroscopy and BET surface area analysis. The adsorption capacity of these nanotubes was tested against three commonly used dyes: methyl orange, crystal violet and thymol blue. The samples showed great affinity toward crystal violet and lower activity toward methyl orange and thymol blue, where they achieved more than 90% removal efficiency under different experimental conditions. Conclusions Sodium titanate nanotubes were prepared in large amounts using modified hydrothermal method. The obtained nanotubes efficiently removed crystal violet from water. This improved synthesis of titanate nanotubes will reduce the total cost of nanomaterials production, and subsequently the treatment process, since titanate nanotubes are used in adsorption and photocatalysis processes.
format	article
author	Ayman H. Zaki Sara Adel Mahmoud M. Abd El-hafiez Ahmed A. Abdel-Khalek
author_facet	Ayman H. Zaki Sara Adel Mahmoud M. Abd El-hafiez Ahmed A. Abdel-Khalek
author_sort	Ayman H. Zaki
title	Improved production of titanate nanotubes by hydrothermal method for adsorption of organic dyes
title_short	Improved production of titanate nanotubes by hydrothermal method for adsorption of organic dyes
title_full	Improved production of titanate nanotubes by hydrothermal method for adsorption of organic dyes
title_fullStr	Improved production of titanate nanotubes by hydrothermal method for adsorption of organic dyes
title_full_unstemmed	Improved production of titanate nanotubes by hydrothermal method for adsorption of organic dyes
title_sort	improved production of titanate nanotubes by hydrothermal method for adsorption of organic dyes
publisher	SpringerOpen
publishDate	2021
url	https://doaj.org/article/00752cd241634367abed4ea48369f799
work_keys_str_mv	AT aymanhzaki improvedproductionoftitanatenanotubesbyhydrothermalmethodforadsorptionoforganicdyes AT saraadel improvedproductionoftitanatenanotubesbyhydrothermalmethodforadsorptionoforganicdyes AT mahmoudmabdelhafiez improvedproductionoftitanatenanotubesbyhydrothermalmethodforadsorptionoforganicdyes AT ahmedaabdelkhalek improvedproductionoftitanatenanotubesbyhydrothermalmethodforadsorptionoforganicdyes
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Improved production of titanate nanotubes by hydrothermal method for adsorption of organic dyes

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