Optical and Morphological Properties of ZnO- and TiO2-Derived Nanostructures Synthesized via a Microwave-Assisted Hydrothermal Method | Zendy

Nosipho Moloto | Zendy; Siyasanga Mpelane | Zendy; Lucky Sikhwivhilu | Zendy; Suprakas Sinha Ray | Zendy

Open Access

Optical and Morphological Properties of ZnO- and TiO₂-Derived Nanostructures Synthesized via a Microwave-Assisted Hydrothermal Method

Author(s) -

Nosipho Moloto,

Siyasanga Mpelane,

Lucky Sikhwivhilu,

Suprakas Sinha Ray

Publication year - 2012

Publication title -

international journal of photoenergy

Language(s) - English

Resource type - Journals

SCImago Journal Rank - 0.426

H-Index - 51

eISSN - 1687-529X

pISSN - 1110-662X

DOI - 10.1155/2012/189069

Subject(s) - nanorod , hydrothermal circulation , materials science , photoluminescence , high resolution transmission electron microscopy , nanostructure , nanotechnology , microwave , chemical engineering , phase (matter) , hydrothermal synthesis , hexagonal phase , hexagonal crystal system , photocatalysis , crystal (programming language) , optoelectronics , transmission electron microscopy , crystallography , chemistry , catalysis , physics , programming language , organic chemistry , quantum mechanics , computer science , engineering , biochemistry

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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