Effects of NH4F and distilled water on structure of pores in TiO2 nanotube arrays

Abstract In this study, we report the influences of distilled water and ammonium fluoride (NH4F) on morphology of pores in honeycomb-like titanium dioxide (TiO2) nanotube arrays. We observed the structure and arrangement of pores in the TiO2 nanotube arrays based on scanning electron microscopy imag...

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Autores principales:	Jaegyu Kim, Bongsoo Kim, Chungik Oh, Jeongjae Ryu, Hongjun Kim, Eugene Park, Kwangsoo No, Seungbum Hong
Formato:	article
Lenguaje:	EN
Publicado:	Nature Portfolio 2018
Materias:	Medicine R Science Q
Acceso en línea:	https://doaj.org/article/a646cb713c1149d1a448d22cc193a747
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spelling	oai:doaj.org-article:a646cb713c1149d1a448d22cc193a7472021-12-02T15:08:22ZEffects of NH4F and distilled water on structure of pores in TiO2 nanotube arrays10.1038/s41598-018-30668-32045-2322https://doaj.org/article/a646cb713c1149d1a448d22cc193a7472018-08-01T00:00:00Zhttps://doi.org/10.1038/s41598-018-30668-3https://doaj.org/toc/2045-2322Abstract In this study, we report the influences of distilled water and ammonium fluoride (NH4F) on morphology of pores in honeycomb-like titanium dioxide (TiO2) nanotube arrays. We observed the structure and arrangement of pores in the TiO2 nanotube arrays based on scanning electron microscopy images and analyzed the spatial distribution of the pores using fast Fourier transform and Voronoi diagram. We studied the individual pore properties including pore diameter, wall thickness, and interpore distance and found that locally connected ordering defects decreased with increasing distilled water concentration. Furthermore, we found that the optimum conditions of well-ordered hexagonal pore arrangement were 2 and 10 vol% distilled water with 0.2 and 0.4 wt% NH4F, respectively. Throughout this study, we provide a better understanding about the roles of distilled water and NH4F in forming well-ordered nanoscale pore structure with less ordering defects in the honeycomb-like TiO2 nanotube arrays.Jaegyu KimBongsoo KimChungik OhJeongjae RyuHongjun KimEugene ParkKwangsoo NoSeungbum HongNature PortfolioarticleMedicineRScienceQENScientific Reports, Vol 8, Iss 1, Pp 1-8 (2018)
institution	DOAJ
collection	DOAJ
language	EN
topic	Medicine R Science Q
spellingShingle	Medicine R Science Q Jaegyu Kim Bongsoo Kim Chungik Oh Jeongjae Ryu Hongjun Kim Eugene Park Kwangsoo No Seungbum Hong Effects of NH4F and distilled water on structure of pores in TiO2 nanotube arrays
description	Abstract In this study, we report the influences of distilled water and ammonium fluoride (NH4F) on morphology of pores in honeycomb-like titanium dioxide (TiO2) nanotube arrays. We observed the structure and arrangement of pores in the TiO2 nanotube arrays based on scanning electron microscopy images and analyzed the spatial distribution of the pores using fast Fourier transform and Voronoi diagram. We studied the individual pore properties including pore diameter, wall thickness, and interpore distance and found that locally connected ordering defects decreased with increasing distilled water concentration. Furthermore, we found that the optimum conditions of well-ordered hexagonal pore arrangement were 2 and 10 vol% distilled water with 0.2 and 0.4 wt% NH4F, respectively. Throughout this study, we provide a better understanding about the roles of distilled water and NH4F in forming well-ordered nanoscale pore structure with less ordering defects in the honeycomb-like TiO2 nanotube arrays.
format	article
author	Jaegyu Kim Bongsoo Kim Chungik Oh Jeongjae Ryu Hongjun Kim Eugene Park Kwangsoo No Seungbum Hong
author_facet	Jaegyu Kim Bongsoo Kim Chungik Oh Jeongjae Ryu Hongjun Kim Eugene Park Kwangsoo No Seungbum Hong
author_sort	Jaegyu Kim
title	Effects of NH4F and distilled water on structure of pores in TiO2 nanotube arrays
title_short	Effects of NH4F and distilled water on structure of pores in TiO2 nanotube arrays
title_full	Effects of NH4F and distilled water on structure of pores in TiO2 nanotube arrays
title_fullStr	Effects of NH4F and distilled water on structure of pores in TiO2 nanotube arrays
title_full_unstemmed	Effects of NH4F and distilled water on structure of pores in TiO2 nanotube arrays
title_sort	effects of nh4f and distilled water on structure of pores in tio2 nanotube arrays
publisher	Nature Portfolio
publishDate	2018
url	https://doaj.org/article/a646cb713c1149d1a448d22cc193a747
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_version_	1718388204398182400

Effects of NH4F and distilled water on structure of pores in TiO2 nanotube arrays

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