Low-temperature growth of well-aligned zinc oxide nanorod arrays on silicon substrate and their photocatalytic application

Ameer Azam,1 Saeed Salem Babkair21Center of Nanotechnology, King Abdulaziz University, Jeddah, Saudi Arabia; 2Center of Nanotechnology, Department of Physics, Faculty of Science, King Abdulaziz University, Jeddah, Saudi ArabiaAbstract: Well-aligned and single-crystalline zinc oxide (ZnO) nanorod ar...

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Autores principales:	Azam A, Babkair SS
Formato:	article
Lenguaje:	EN
Publicado:	Dove Medical Press 2014
Materias:	Medicine (General) R5-920
Acceso en línea:	https://doaj.org/article/fe3f2a62203e49d5a9dd2d4ac9d64025
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spelling	oai:doaj.org-article:fe3f2a62203e49d5a9dd2d4ac9d640252021-12-02T02:10:30ZLow-temperature growth of well-aligned zinc oxide nanorod arrays on silicon substrate and their photocatalytic application1178-2013https://doaj.org/article/fe3f2a62203e49d5a9dd2d4ac9d640252014-04-01T00:00:00Zhttp://www.dovepress.com/low-temperature-growth-of-well-aligned-zinc-oxide-nanorod-arrays-on-si-a16579https://doaj.org/toc/1178-2013 Ameer Azam,1 Saeed Salem Babkair21Center of Nanotechnology, King Abdulaziz University, Jeddah, Saudi Arabia; 2Center of Nanotechnology, Department of Physics, Faculty of Science, King Abdulaziz University, Jeddah, Saudi ArabiaAbstract: Well-aligned and single-crystalline zinc oxide (ZnO) nanorod arrays were grown on silicon (Si) substrate using a wet chemical route for the photodegradation of organic dyes. Structural analysis using X-ray diffraction, high-resolution transmission electron microscopy, and selected area electron diffraction confirmed the formation of ZnO nanorods grown preferentially oriented in the (001) direction and with a single phase nature with a wurtzite structure. Field emission scanning electron microscopy and transmission electron microscopy micrographs showed that the length and diameter of the well-aligned rods were about ~350–400 nm and ~80–90 nm, respectively. Raman scattering spectra of ZnO nanorod arrays revealed the characteristic E2 (high) mode that is related to the vibration of oxygen atoms in the wurtzite ZnO. The photodegradation of methylene blue (MB) using ZnO nanorod arrays was performed under ultraviolet light irradiation. The results of photodegradation showed that ZnO nanorod arrays were capable of degrading ~80% of MB within 60 minutes of irradiation, whereas ~92% of degradation was achieved in 120 minutes. Complete degradation of MB was observed after 270 minutes of irradiation time. Owing to enhanced photocatalytic degradation efficiency and low-temperature growth method, prepared ZnO nanorod arrays may open up the possibility for the successful utilization of ZnO nanorod arrays as a future photocatalyst for environmental remediation.Keywords: ZnO, nanorods, XRD, photodegradationAzam ABabkair SSDove Medical PressarticleMedicine (General)R5-920ENInternational Journal of Nanomedicine, Vol 2014, Iss Issue 1, Pp 2109-2115 (2014)
institution	DOAJ
collection	DOAJ
language	EN
topic	Medicine (General) R5-920
spellingShingle	Medicine (General) R5-920 Azam A Babkair SS Low-temperature growth of well-aligned zinc oxide nanorod arrays on silicon substrate and their photocatalytic application
description	Ameer Azam,1 Saeed Salem Babkair21Center of Nanotechnology, King Abdulaziz University, Jeddah, Saudi Arabia; 2Center of Nanotechnology, Department of Physics, Faculty of Science, King Abdulaziz University, Jeddah, Saudi ArabiaAbstract: Well-aligned and single-crystalline zinc oxide (ZnO) nanorod arrays were grown on silicon (Si) substrate using a wet chemical route for the photodegradation of organic dyes. Structural analysis using X-ray diffraction, high-resolution transmission electron microscopy, and selected area electron diffraction confirmed the formation of ZnO nanorods grown preferentially oriented in the (001) direction and with a single phase nature with a wurtzite structure. Field emission scanning electron microscopy and transmission electron microscopy micrographs showed that the length and diameter of the well-aligned rods were about ~350–400 nm and ~80–90 nm, respectively. Raman scattering spectra of ZnO nanorod arrays revealed the characteristic E2 (high) mode that is related to the vibration of oxygen atoms in the wurtzite ZnO. The photodegradation of methylene blue (MB) using ZnO nanorod arrays was performed under ultraviolet light irradiation. The results of photodegradation showed that ZnO nanorod arrays were capable of degrading ~80% of MB within 60 minutes of irradiation, whereas ~92% of degradation was achieved in 120 minutes. Complete degradation of MB was observed after 270 minutes of irradiation time. Owing to enhanced photocatalytic degradation efficiency and low-temperature growth method, prepared ZnO nanorod arrays may open up the possibility for the successful utilization of ZnO nanorod arrays as a future photocatalyst for environmental remediation.Keywords: ZnO, nanorods, XRD, photodegradation
format	article
author	Azam A Babkair SS
author_facet	Azam A Babkair SS
author_sort	Azam A
title	Low-temperature growth of well-aligned zinc oxide nanorod arrays on silicon substrate and their photocatalytic application
title_short	Low-temperature growth of well-aligned zinc oxide nanorod arrays on silicon substrate and their photocatalytic application
title_full	Low-temperature growth of well-aligned zinc oxide nanorod arrays on silicon substrate and their photocatalytic application
title_fullStr	Low-temperature growth of well-aligned zinc oxide nanorod arrays on silicon substrate and their photocatalytic application
title_full_unstemmed	Low-temperature growth of well-aligned zinc oxide nanorod arrays on silicon substrate and their photocatalytic application
title_sort	low-temperature growth of well-aligned zinc oxide nanorod arrays on silicon substrate and their photocatalytic application
publisher	Dove Medical Press
publishDate	2014
url	https://doaj.org/article/fe3f2a62203e49d5a9dd2d4ac9d64025
work_keys_str_mv	AT azama lowtemperaturegrowthofwellalignedzincoxidenanorodarraysonsiliconsubstrateandtheirphotocatalyticapplication AT babkairss lowtemperaturegrowthofwellalignedzincoxidenanorodarraysonsiliconsubstrateandtheirphotocatalyticapplication
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Low-temperature growth of well-aligned zinc oxide nanorod arrays on silicon substrate and their photocatalytic application

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