What question did this study set out to answer?

To synthesize zinc oxide (ZnO) nanoparticles through direct precipitation at low temperatures and characterize their structural, morphological, and optical bandgap properties.

January 1, 2014Journal of NanomaterialsOpen Access

Direct Precipitation and Characterization of ZnO Nanoparticles

View Full Paper

Ask AI

Bookmark

To synthesize zinc oxide (ZnO) nanoparticles through direct precipitation at low temperatures and characterize their structural, morphological, and optical bandgap properties.
Synthesized ZnO nanoparticles via hydrolysis and condensation of zinc acetate dihydrate using potassium hydroxide in an alcoholic medium at low temperatures.
Characterized sample decomposition, crystal structure, morphology, and optical absorption using thermal gravimetric analysis (TGA), X-ray diffraction (XRD), transmission electron microscopy (TEM), and UV-visible spectroscopy with Tauc's relation.
XRD and TEM analysis revealed a predominant hexagonal crystal structure (a = 3.2459 Å, c = 5.1999 Å) with an average nanoparticle size of 22.4 ± 0.6 nm via Scherrer's formula.
Optical characterization yielded an absorption peak at 298 nm (markedly blue-shifted from bulk ZnO at 360 nm) and an optical energy gap of 3.52 eV, demonstrating a strong quantum confinement effect.

Discussion

No takes yet. Share an insight, caveat, or question.

Implication

Experimental analysis demonstrates low-temperature precipitation of zinc oxide nanoparticles, indicating strong quantum confinement via significant optical bandgap widening.

Cite This Study

Moharram et al. (2014) studied this question.

synapsesocial.com/papers/6a98d8744433737514aa8c28 https://doi.org/10.1155/2014/716210

View Full Paper

Ask AI

Bookmark

Implication

Experimental analysis demonstrates low-temperature precipitation of zinc oxide nanoparticles, indicating strong quantum confinement via significant optical bandgap widening.

Direct Precipitation and Characterization of ZnO Nanoparticles

Key Points

Discussion

Implication

Cite This Study

Direct Precipitation and Characterization of ZnO Nanoparticles

Key Points

Discussion

Implication

Cite This Study

Also Consider

Also Consider