Characterization of nanostructured ZnO produced by microwave irradiation

Different molar ratios of Zn(NO3)2 to NaOH were dissolved in de-ionized water, mixed to form solutions with different pH values and heated using 180 W microwave power (80 °C) in ambient atmosphere for 20 min. Wurtzite ZnO nanostructure was detected using an X-ray diffractometer (XRD) and a selected...

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Main Authors: Thongtem T., Phuruangrat A., Thongtem S.
Format: Article
Language:English
Published: 2014
Online Access:http://www.scopus.com/inward/record.url?eid=2-s2.0-70350728410&partnerID=40&md5=1dfcaf94040f4c3815a384f9e8c6c077
http://cmuir.cmu.ac.th/handle/6653943832/6375
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spelling th-cmuir.6653943832-63752014-08-30T03:24:08Z Characterization of nanostructured ZnO produced by microwave irradiation Thongtem T. Phuruangrat A. Thongtem S. Different molar ratios of Zn(NO3)2 to NaOH were dissolved in de-ionized water, mixed to form solutions with different pH values and heated using 180 W microwave power (80 °C) in ambient atmosphere for 20 min. Wurtzite ZnO nanostructure was detected using an X-ray diffractometer (XRD) and a selected area electron diffraction (SAED) technique. The patterns were in accordance with those of the simulation. Scanning and transmission electron microscopes (SEM and TEM) revealed their nanostructures with different morphologies controlled by molar ratios of the starting agents as well as pH values of the solutions. High resolution transmission electron microscopic (HRTEM) technique shows that the crystallographic planes are aligned in lattice array. Seven different Raman wavenumbers at 334, 378, 410, 440, 541, 575 and 660 cm-1 were used to specify that the products were wurtzite structured ZnO. Photoluminescence (PL) spectra show their emission peaks at 385-394 nm due to the recombination process of free excitons. © 2009 Elsevier Ltd and Techna Group S.r.l. 2014-08-30T03:24:08Z 2014-08-30T03:24:08Z 2010 Article 2728842 10.1016/j.ceramint.2009.07.027 CINND http://www.scopus.com/inward/record.url?eid=2-s2.0-70350728410&partnerID=40&md5=1dfcaf94040f4c3815a384f9e8c6c077 http://cmuir.cmu.ac.th/handle/6653943832/6375 English
institution Chiang Mai University
building Chiang Mai University Library
country Thailand
collection CMU Intellectual Repository
language English
description Different molar ratios of Zn(NO3)2 to NaOH were dissolved in de-ionized water, mixed to form solutions with different pH values and heated using 180 W microwave power (80 °C) in ambient atmosphere for 20 min. Wurtzite ZnO nanostructure was detected using an X-ray diffractometer (XRD) and a selected area electron diffraction (SAED) technique. The patterns were in accordance with those of the simulation. Scanning and transmission electron microscopes (SEM and TEM) revealed their nanostructures with different morphologies controlled by molar ratios of the starting agents as well as pH values of the solutions. High resolution transmission electron microscopic (HRTEM) technique shows that the crystallographic planes are aligned in lattice array. Seven different Raman wavenumbers at 334, 378, 410, 440, 541, 575 and 660 cm-1 were used to specify that the products were wurtzite structured ZnO. Photoluminescence (PL) spectra show their emission peaks at 385-394 nm due to the recombination process of free excitons. © 2009 Elsevier Ltd and Techna Group S.r.l.
format Article
author Thongtem T.
Phuruangrat A.
Thongtem S.
spellingShingle Thongtem T.
Phuruangrat A.
Thongtem S.
Characterization of nanostructured ZnO produced by microwave irradiation
author_facet Thongtem T.
Phuruangrat A.
Thongtem S.
author_sort Thongtem T.
title Characterization of nanostructured ZnO produced by microwave irradiation
title_short Characterization of nanostructured ZnO produced by microwave irradiation
title_full Characterization of nanostructured ZnO produced by microwave irradiation
title_fullStr Characterization of nanostructured ZnO produced by microwave irradiation
title_full_unstemmed Characterization of nanostructured ZnO produced by microwave irradiation
title_sort characterization of nanostructured zno produced by microwave irradiation
publishDate 2014
url http://www.scopus.com/inward/record.url?eid=2-s2.0-70350728410&partnerID=40&md5=1dfcaf94040f4c3815a384f9e8c6c077
http://cmuir.cmu.ac.th/handle/6653943832/6375
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