Preparation of ZnO nanoparticles by thermal decomposition of zinc alginate

Sotirios Baskoutas, Panayotis Giabouranis, Spyros N. Yannopoulos, Vassilios Dracopoulos, L. Tóth, Athanassios Chrissanthopoulos, Nikolaos Bouropoulos

Research output: Contribution to journalArticle

83 Citations (Scopus)

Abstract

A new method to produce zinc oxide nanocrystals is presented. The method is based on the thermal decomposition of zinc alginate gels. The gels were produced in the form of beads by ionic gelation between a zinc solution and sodium alginate. The wet beads were heated at 800 and 450 °C for 24 h and the products were characterized by X-ray diffraction (XRD), Scanning Electron Microscopy (SEM) and Transmission electron microscopy (TEM) and micro-Raman spectroscopy. XRD analysis showed that all obtained samples are of wurtzite structure. TEM analysis combined with electron diffraction also showed the presence of single crystals indexed as ZnO hexagonal phase. Crystal size was determined by measuring individual crystals from SEM pictures. It was found that heating temperature and the kind of zinc agent influence the crystal size. Raman scattering revealed the existence of defects in the structure of nanoparticles whose cringing was discussed in the context of recent studies in this field.

Original languageEnglish
Pages (from-to)8461-8464
Number of pages4
JournalThin Solid Films
Volume515
Issue number24 SPEC. ISS.
DOIs
Publication statusPublished - Oct 15 2007

Fingerprint

Alginate
thermal decomposition
Zinc
Pyrolysis
zinc
Nanoparticles
beads
nanoparticles
preparation
Crystals
Gels
gels
Transmission electron microscopy
crystals
Zinc Oxide
Sodium alginate
transmission electron microscopy
Scanning electron microscopy
scanning electron microscopy
gelation

Keywords

  • Nanocrystals
  • Semiconductors
  • Synthesis
  • Zinc oxide

ASJC Scopus subject areas

  • Surfaces, Coatings and Films
  • Condensed Matter Physics
  • Surfaces and Interfaces

Cite this

Baskoutas, S., Giabouranis, P., Yannopoulos, S. N., Dracopoulos, V., Tóth, L., Chrissanthopoulos, A., & Bouropoulos, N. (2007). Preparation of ZnO nanoparticles by thermal decomposition of zinc alginate. Thin Solid Films, 515(24 SPEC. ISS.), 8461-8464. https://doi.org/10.1016/j.tsf.2007.03.150

Preparation of ZnO nanoparticles by thermal decomposition of zinc alginate. / Baskoutas, Sotirios; Giabouranis, Panayotis; Yannopoulos, Spyros N.; Dracopoulos, Vassilios; Tóth, L.; Chrissanthopoulos, Athanassios; Bouropoulos, Nikolaos.

In: Thin Solid Films, Vol. 515, No. 24 SPEC. ISS., 15.10.2007, p. 8461-8464.

Research output: Contribution to journalArticle

Baskoutas, S, Giabouranis, P, Yannopoulos, SN, Dracopoulos, V, Tóth, L, Chrissanthopoulos, A & Bouropoulos, N 2007, 'Preparation of ZnO nanoparticles by thermal decomposition of zinc alginate', Thin Solid Films, vol. 515, no. 24 SPEC. ISS., pp. 8461-8464. https://doi.org/10.1016/j.tsf.2007.03.150
Baskoutas S, Giabouranis P, Yannopoulos SN, Dracopoulos V, Tóth L, Chrissanthopoulos A et al. Preparation of ZnO nanoparticles by thermal decomposition of zinc alginate. Thin Solid Films. 2007 Oct 15;515(24 SPEC. ISS.):8461-8464. https://doi.org/10.1016/j.tsf.2007.03.150
Baskoutas, Sotirios ; Giabouranis, Panayotis ; Yannopoulos, Spyros N. ; Dracopoulos, Vassilios ; Tóth, L. ; Chrissanthopoulos, Athanassios ; Bouropoulos, Nikolaos. / Preparation of ZnO nanoparticles by thermal decomposition of zinc alginate. In: Thin Solid Films. 2007 ; Vol. 515, No. 24 SPEC. ISS. pp. 8461-8464.
@article{54b37ad5cb3445ddacb66d602da4bc8e,
title = "Preparation of ZnO nanoparticles by thermal decomposition of zinc alginate",
abstract = "A new method to produce zinc oxide nanocrystals is presented. The method is based on the thermal decomposition of zinc alginate gels. The gels were produced in the form of beads by ionic gelation between a zinc solution and sodium alginate. The wet beads were heated at 800 and 450 °C for 24 h and the products were characterized by X-ray diffraction (XRD), Scanning Electron Microscopy (SEM) and Transmission electron microscopy (TEM) and micro-Raman spectroscopy. XRD analysis showed that all obtained samples are of wurtzite structure. TEM analysis combined with electron diffraction also showed the presence of single crystals indexed as ZnO hexagonal phase. Crystal size was determined by measuring individual crystals from SEM pictures. It was found that heating temperature and the kind of zinc agent influence the crystal size. Raman scattering revealed the existence of defects in the structure of nanoparticles whose cringing was discussed in the context of recent studies in this field.",
keywords = "Nanocrystals, Semiconductors, Synthesis, Zinc oxide",
author = "Sotirios Baskoutas and Panayotis Giabouranis and Yannopoulos, {Spyros N.} and Vassilios Dracopoulos and L. T{\'o}th and Athanassios Chrissanthopoulos and Nikolaos Bouropoulos",
year = "2007",
month = "10",
day = "15",
doi = "10.1016/j.tsf.2007.03.150",
language = "English",
volume = "515",
pages = "8461--8464",
journal = "Thin Solid Films",
issn = "0040-6090",
publisher = "Elsevier",
number = "24 SPEC. ISS.",

}

TY - JOUR

T1 - Preparation of ZnO nanoparticles by thermal decomposition of zinc alginate

AU - Baskoutas, Sotirios

AU - Giabouranis, Panayotis

AU - Yannopoulos, Spyros N.

AU - Dracopoulos, Vassilios

AU - Tóth, L.

AU - Chrissanthopoulos, Athanassios

AU - Bouropoulos, Nikolaos

PY - 2007/10/15

Y1 - 2007/10/15

N2 - A new method to produce zinc oxide nanocrystals is presented. The method is based on the thermal decomposition of zinc alginate gels. The gels were produced in the form of beads by ionic gelation between a zinc solution and sodium alginate. The wet beads were heated at 800 and 450 °C for 24 h and the products were characterized by X-ray diffraction (XRD), Scanning Electron Microscopy (SEM) and Transmission electron microscopy (TEM) and micro-Raman spectroscopy. XRD analysis showed that all obtained samples are of wurtzite structure. TEM analysis combined with electron diffraction also showed the presence of single crystals indexed as ZnO hexagonal phase. Crystal size was determined by measuring individual crystals from SEM pictures. It was found that heating temperature and the kind of zinc agent influence the crystal size. Raman scattering revealed the existence of defects in the structure of nanoparticles whose cringing was discussed in the context of recent studies in this field.

AB - A new method to produce zinc oxide nanocrystals is presented. The method is based on the thermal decomposition of zinc alginate gels. The gels were produced in the form of beads by ionic gelation between a zinc solution and sodium alginate. The wet beads were heated at 800 and 450 °C for 24 h and the products were characterized by X-ray diffraction (XRD), Scanning Electron Microscopy (SEM) and Transmission electron microscopy (TEM) and micro-Raman spectroscopy. XRD analysis showed that all obtained samples are of wurtzite structure. TEM analysis combined with electron diffraction also showed the presence of single crystals indexed as ZnO hexagonal phase. Crystal size was determined by measuring individual crystals from SEM pictures. It was found that heating temperature and the kind of zinc agent influence the crystal size. Raman scattering revealed the existence of defects in the structure of nanoparticles whose cringing was discussed in the context of recent studies in this field.

KW - Nanocrystals

KW - Semiconductors

KW - Synthesis

KW - Zinc oxide

UR - http://www.scopus.com/inward/record.url?scp=34548827603&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=34548827603&partnerID=8YFLogxK

U2 - 10.1016/j.tsf.2007.03.150

DO - 10.1016/j.tsf.2007.03.150

M3 - Article

AN - SCOPUS:34548827603

VL - 515

SP - 8461

EP - 8464

JO - Thin Solid Films

JF - Thin Solid Films

SN - 0040-6090

IS - 24 SPEC. ISS.

ER -