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https://doi.org/10.5562/cca3121

The Effect of Gum Arabic on the Nano / Microstructure and Optical Properties of Precipitated ZnO

Željka Petrović ; Division of Materials Chemistry, Ruđer Bošković Institute, Bijenička cesta 54, HR-10002 Zagreb, Croatia
Mira Ristić   ORCID icon orcid.org/0000-0003-0033-9840 ; Division of Materials Chemistry, Ruđer Bošković Institute, Bijenička cesta 54, HR-10002 Zagreb, Croatia
Svetozar Musić ; Division of Materials Chemistry, Ruđer Bošković Institute, Bijenička cesta 54, HR-10002 Zagreb, Croatia
Martin Fabián ; Institute of Geotechnics, Slovak Academy of Sciences, SK-04001 Košice, Slovakia

Puni tekst: engleski, pdf (7 MB) str. 135-143 preuzimanja: 442* citiraj
APA 6th Edition
Petrović, Ž., Ristić, M., Musić, S. i Fabián, M. (2017). The Effect of Gum Arabic on the Nano / Microstructure and Optical Properties of Precipitated ZnO. Croatica Chemica Acta, 90 (2), 135-143. https://doi.org/10.5562/cca3121
MLA 8th Edition
Petrović, Željka, et al. "The Effect of Gum Arabic on the Nano / Microstructure and Optical Properties of Precipitated ZnO." Croatica Chemica Acta, vol. 90, br. 2, 2017, str. 135-143. https://doi.org/10.5562/cca3121. Citirano 13.11.2019.
Chicago 17th Edition
Petrović, Željka, Mira Ristić, Svetozar Musić i Martin Fabián. "The Effect of Gum Arabic on the Nano / Microstructure and Optical Properties of Precipitated ZnO." Croatica Chemica Acta 90, br. 2 (2017): 135-143. https://doi.org/10.5562/cca3121
Harvard
Petrović, Ž., et al. (2017). 'The Effect of Gum Arabic on the Nano / Microstructure and Optical Properties of Precipitated ZnO', Croatica Chemica Acta, 90(2), str. 135-143. https://doi.org/10.5562/cca3121
Vancouver
Petrović Ž, Ristić M, Musić S, Fabián M. The Effect of Gum Arabic on the Nano / Microstructure and Optical Properties of Precipitated ZnO. Croatica Chemica Acta [Internet]. 2017 [pristupljeno 13.11.2019.];90(2):135-143. https://doi.org/10.5562/cca3121
IEEE
Ž. Petrović, M. Ristić, S. Musić i M. Fabián, "The Effect of Gum Arabic on the Nano / Microstructure and Optical Properties of Precipitated ZnO", Croatica Chemica Acta, vol.90, br. 2, str. 135-143, 2017. [Online]. https://doi.org/10.5562/cca3121

Sažetak
The development of the nano/microstructure of ZnO particles precipitated from zinc acetylacetonate showed dependence on the presence of gum arabic. In the absence of gum arabic in near-neutral pH range ZnO rods, some of them hollow, precipitated, whereas in alkaline (NH4OH) medium the multipods (stars) were obtained. A strong effect of gum arabic was noticed both in the near-neutral pH range and in alkaline (NH4OH) medium. In both cases ZnO particles consisted of 1D subunits. The FT-IR spectra of ZnO particles precipitated in the presence of gum arabic showed the IR bands due to the residual content of this biopolymer. Gum arabic formed the corona on ZnO particles and played a key role in the precipitation process from nucleation to the final ZnO product. UV/Vis spectra were also recorded. The PL spectra of ZnO powders dispersed in pure ethanol were very similar. In the presence of ethanol characteristic peaks in the blue emission region were diminishing, thus softening the intrinsic defects responsible for this emission. It was assumed that this effect was due to the covering of oxygen vacancies (VO) at the interface ZnO/C2H5OH with the oxygen atoms present in ethanol.

Creative Commons License This work is licensed under a Creative Commons Attribution 4.0 International License.

Ključne riječi
ZnO; gum arabic; nano/microstructure; optical properties

Hrčak ID: 183713

URI
https://hrcak.srce.hr/183713

Posjeta: 596 *