Sol–gel synthesis and characterization of nanocrystalline ZnO powders

Ristić, Mira; Musić, Svetozar; Ivanda, Mile; Popović, Stanko

doi:10.1016/j.jallcom.2005.01.045

Cited by 246 publications

(113 citation statements)

References 26 publications

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“…The shape and location of Raman bands depend on particle size, as shown in the example of zinc oxide. 21 Likewise, it was found that the profile of the Raman spectrum of hematite strongly depends on the excitation radiation lines of the laser beam. 22 In the Raman spectra shown in Figure 4, the characteristic bands T 2g and A 1g corresponding to magnetite 23,24 are not visible.…”

Section: Methodsmentioning

confidence: 99%

Formation of Iron Oxides by Surface Oxidation of Iron Plate

Marciuš¹,

Ristić²,

Ivanda³

et al. 2012

Croat. Chem. Acta

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Section: Methodsmentioning

confidence: 99%

Formation of Iron Oxides by Surface Oxidation of Iron Plate

Marciuš¹,

Ristić²,

Ivanda³

et al. 2012

Croat. Chem. Acta

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“…Typically, zinc oxide (ZnO) is a well-known semiconductor with a wide bandgap (*3.37 eV) having unique optical and bio-compatible properties which make it a better candidate for bio-imaging than metal and chalcogenide NPs (Wu et al 2008). Some of the methods have been reported earlier for synthesizing the ZnO nanocrystals in aqueous solution but they either involved an alkaline media or an annealing method (Noack and Eychmuller 2002;Jin et al 2003;Wang et al 2004;Ristic et al 2005;Sahdan et al 2010;Xu and Wang 2011;Huang and Duan 2014) which makes them unsuitable for biological applications. Further, in this case, using various chemicals may produce toxicity which contaminate the NPs and make them unsuitable for biological applications.…”

Section: Introductionmentioning

confidence: 99%

Structural and optical characterization of pure and starch-capped ZnO quantum dots and their photocatalytic activity

Vidhya¹,

Saravanan

Bhoopathi³

et al. 2014

Appl Nanosci

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Among the different types of metal oxides, zinc oxide (ZnO) is a most commonly used metal oxide in a broad variety of applications. In the present investigation, a modified green synthesis route was used to synthesize pure and starch-capped ZnO (ZnO/starch) quantum dots (QDs) and studied their structural and optical characteristics. In this study, hexagonal crystal structure was observed in both pure and ZnO/starch QDs using X-ray diffraction technique. A spherical-shaped surface morphology was found with the size of 5-10 nm using transmission electron microscope technique. The interaction between ZnO QDs and starch molecules was proved via Fourier infra-red spectrometer technique. On the other hand, their fluorescence behaviors were investigated using photoluminescence technique, in that the ZnO/starch QDs showed an enhanced emission behavior when compared to the pure ZnO QDs. Further, the solar photocatalytic activity of both the ZnO QDs was examined with the dye Rhodamine B (RhB) at the end of 30, 60, 90, and 120 min. In this, ZnO/ starch QDs show a good and more decomposition of RhB than pure ZnO QDs. Collectively, in the present study, green synthesis route produced an efficient QDs (pure and ZnO/starch) and it will be very useful for many other QDs. The ZnO/starch QDs are suitable for decomposing the RhB and other toxic organic dyes.

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“…Nanocrystalline ZnO is widely used in many applications such as blue light emitting diodes (Tsukazaki et al, 2005), photo detectors (Jun et al, 2009), gas sensors (Xu et al, 2000), photocatalysts (Hariharan, 2006), and field-effect transistors (Arnold et al, 2003). Various a b chemical methods have been successfully used for synthesizing nanostructured ZnO material, such as hydrothermal (Xu et al, 2004), sol-gel processing (Ristic et al 2005;Li et al, 2005), chemical bath deposition and sonochamical synthesis (Kandjani et al, 2008).…”

Section: Zinc Oxidementioning

confidence: 99%