The effect of reaction and annealing temperatures on physicochemical properties of highly stable ZnO nanoparticles synthesized via a green route using Plumeria obtusa L.

Abstract

ZnO NPs are promising options due to their versatile application range in almost every field of science and technology including biomedical sciences. Obtaining stable and structured ZnO NPs is still...

An Eco-friendly Approach to ZnO NP Synthesis Using Citrus reticulata Blanco Peel/Extract: Characterization and Antibacterial and Photocatalytic Activity

“…It is noted that the PL spectrum of ZnO NPs mainly consists of an emission band at about 372–400 nm in the UV region, which corresponds to the near-band-edge emissions (NBE), and a broad deep-level emission (DLE) located at about 400–700 nm belonging to the visible region. , As can be concluded from Figure b, the near-band-edge emission of ZnO resulting from the recombination of photoinduced charge carriers (sharp band near 380 nm) is missing. Strong emissions were observed in the blue and green ranges of the visible spectra with peaks at 437 and 454 nm (blue), 509 nm (blue-green), and 546 nm (green), which are attributed to intrinsic defects due to oxygen vacancies and zinc interstitial sites . There is a difference in peak intensity depending on the used precursor (acetate or nitrate) and extract type.…”

“…Strong emissions were observed in the blue and green ranges of the visible spectra with peaks at 437 and 454 nm (blue), 509 nm (bluegreen), and 546 nm (green), which are attributed to intrinsic defects due to oxygen vacancies and zinc interstitial sites. 43 There is a difference in peak intensity depending on the used precursor (acetate or nitrate) and extract type. The lowest peak intensity was observed for ZnNExtrMan NPs, which is due to the smallest average particle size, as the synthesis process did not include a calcination step (Figure 11b).…”

Influence of pH on Room-Temperature Synthesis of Zinc Oxide Nanoparticles for Flexible Gas Sensor Applications

“…Zn(CH 3 COO) 2 is dissolved in the polyol, and the mixture is heated to obtain ZnO NPs. Nevertheless, challenges arise as a reducing agent can affect the purity of the ZnO NPs [51,52]. Vapor phase synthesis is another method involving a vapor phase reaction to synthesize high-quality ZnO NPs with a narrow size distribution with a particle size range of 10-118 nm [53,54].…”