Marangoni effect induced macro porous surface films prepared through a facile sol-gel route

Abstract Based on TiO2 as a model system, the sol-gel one step facile method is established to fabricate the macro-porous morphology films on the basis of Marangoni effect. In this proposed mechanism, the binary mixture of hydrophilic CuCl2 and lipophilic Ti-O network is used in sol to produce phase...

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Autores principales:	Shahid Khan, Kangkai Wang, Guangzhong Yuan, Mahmood ul Haq, Zhizheng Wu, Muhammad Usman, Chenlu Song, Gaorong Han, Yong Liu
Formato:	article
Lenguaje:	EN
Publicado:	Nature Portfolio 2017
Materias:	Medicine R Science Q
Acceso en línea:	https://doaj.org/article/4797aef1f47a4486903ab41df6e23afb
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spelling	oai:doaj.org-article:4797aef1f47a4486903ab41df6e23afb2021-12-02T15:06:00ZMarangoni effect induced macro porous surface films prepared through a facile sol-gel route10.1038/s41598-017-05506-72045-2322https://doaj.org/article/4797aef1f47a4486903ab41df6e23afb2017-07-01T00:00:00Zhttps://doi.org/10.1038/s41598-017-05506-7https://doaj.org/toc/2045-2322Abstract Based on TiO2 as a model system, the sol-gel one step facile method is established to fabricate the macro-porous morphology films on the basis of Marangoni effect. In this proposed mechanism, the binary mixture of hydrophilic CuCl2 and lipophilic Ti-O network is used in sol to produce phase separation. A suitable evaporation rate in the gel film process leads to the macro-porous film due to Marangoni effect. It is observed that the macro-porous morphology of the film sustains during the annealing process, which suggests the creation of porous surface morphology in gel film stage rather than due to annealing. To analyze the preparation mechanism, the sol-gel process and microstructure of films are examined using TG-DTA, SEM, TEM, XRD, Raman, UV-Vis, XPS and FTIR. Furthermore, the optical-thermal properties are studied for the potential applications of such porous surface films as solar selective absorber.Shahid KhanKangkai WangGuangzhong YuanMahmood ul HaqZhizheng WuMuhammad UsmanChenlu SongGaorong HanYong LiuNature PortfolioarticleMedicineRScienceQENScientific Reports, Vol 7, Iss 1, Pp 1-12 (2017)
institution	DOAJ
collection	DOAJ
language	EN
topic	Medicine R Science Q
spellingShingle	Medicine R Science Q Shahid Khan Kangkai Wang Guangzhong Yuan Mahmood ul Haq Zhizheng Wu Muhammad Usman Chenlu Song Gaorong Han Yong Liu Marangoni effect induced macro porous surface films prepared through a facile sol-gel route
description	Abstract Based on TiO2 as a model system, the sol-gel one step facile method is established to fabricate the macro-porous morphology films on the basis of Marangoni effect. In this proposed mechanism, the binary mixture of hydrophilic CuCl2 and lipophilic Ti-O network is used in sol to produce phase separation. A suitable evaporation rate in the gel film process leads to the macro-porous film due to Marangoni effect. It is observed that the macro-porous morphology of the film sustains during the annealing process, which suggests the creation of porous surface morphology in gel film stage rather than due to annealing. To analyze the preparation mechanism, the sol-gel process and microstructure of films are examined using TG-DTA, SEM, TEM, XRD, Raman, UV-Vis, XPS and FTIR. Furthermore, the optical-thermal properties are studied for the potential applications of such porous surface films as solar selective absorber.
format	article
author	Shahid Khan Kangkai Wang Guangzhong Yuan Mahmood ul Haq Zhizheng Wu Muhammad Usman Chenlu Song Gaorong Han Yong Liu
author_facet	Shahid Khan Kangkai Wang Guangzhong Yuan Mahmood ul Haq Zhizheng Wu Muhammad Usman Chenlu Song Gaorong Han Yong Liu
author_sort	Shahid Khan
title	Marangoni effect induced macro porous surface films prepared through a facile sol-gel route
title_short	Marangoni effect induced macro porous surface films prepared through a facile sol-gel route
title_full	Marangoni effect induced macro porous surface films prepared through a facile sol-gel route
title_fullStr	Marangoni effect induced macro porous surface films prepared through a facile sol-gel route
title_full_unstemmed	Marangoni effect induced macro porous surface films prepared through a facile sol-gel route
title_sort	marangoni effect induced macro porous surface films prepared through a facile sol-gel route
publisher	Nature Portfolio
publishDate	2017
url	https://doaj.org/article/4797aef1f47a4486903ab41df6e23afb
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Marangoni effect induced macro porous surface films prepared through a facile sol-gel route

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