Optical and morphological properties of ZnO- and TiO2-derived nanostructures synthesized via a microwave-assisted hydrothermal method

Nosipho Moloto; Siyasanga Mpelane; Lucky M. Sikhwivhilu; Suprakas Sinha Ray

doi:10.1155/2012/189069

Optical and morphological properties of ZnO- and TiO₂-derived nanostructures synthesized via a microwave-assisted hydrothermal method

Nosipho Moloto, Siyasanga Mpelane, Lucky M. Sikhwivhilu, Suprakas Sinha Ray

Chemical Sciences

Research output: Contribution to journal › Article › peer-review

25 Citations (Scopus)

Abstract

A microwave-assisted hydrothermal method was used to synthesize ZnO and TiO₂ nanostructures. The experimental results show that the method resulted in crystalline monodispersed ZnO nanorods that have pointed tips with hexagonal crystal phase. TiO₂ nanotubes were also formed with minimum bundles. The mechanism for the formation of the tubes was validated by HRTEM results. The optical properties of both ZnO and TiO₂ nanostructures showed characteristics of strong quantum confinement regime. The photoluminescence spectrum of TiO₂ nanotubes shows good improvement from previously reported data.

Original language	English
Article number	189069
Journal	International Journal of Photoenergy
Volume	2012
DOIs	https://doi.org/10.1155/2012/189069
Publication status	Published - 2012

ASJC Scopus subject areas

General Chemistry
Atomic and Molecular Physics, and Optics
Renewable Energy, Sustainability and the Environment
General Materials Science

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abstract = "A microwave-assisted hydrothermal method was used to synthesize ZnO and TiO2 nanostructures. The experimental results show that the method resulted in crystalline monodispersed ZnO nanorods that have pointed tips with hexagonal crystal phase. TiO2 nanotubes were also formed with minimum bundles. The mechanism for the formation of the tubes was validated by HRTEM results. The optical properties of both ZnO and TiO2 nanostructures showed characteristics of strong quantum confinement regime. The photoluminescence spectrum of TiO2 nanotubes shows good improvement from previously reported data.",

author = "Nosipho Moloto and Siyasanga Mpelane and Sikhwivhilu, {Lucky M.} and {Sinha Ray}, Suprakas",

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AU - Moloto, Nosipho

AU - Mpelane, Siyasanga

AU - Sikhwivhilu, Lucky M.

AU - Sinha Ray, Suprakas

PY - 2012

Y1 - 2012

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AB - A microwave-assisted hydrothermal method was used to synthesize ZnO and TiO2 nanostructures. The experimental results show that the method resulted in crystalline monodispersed ZnO nanorods that have pointed tips with hexagonal crystal phase. TiO2 nanotubes were also formed with minimum bundles. The mechanism for the formation of the tubes was validated by HRTEM results. The optical properties of both ZnO and TiO2 nanostructures showed characteristics of strong quantum confinement regime. The photoluminescence spectrum of TiO2 nanotubes shows good improvement from previously reported data.

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DO - 10.1155/2012/189069

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JO - International Journal of Photoenergy

JF - International Journal of Photoenergy

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Optical and morphological properties of ZnO- and TiO₂-derived nanostructures synthesized via a microwave-assisted hydrothermal method

Abstract

ASJC Scopus subject areas

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