Studies on Characterization and Optimization Parameters of Zinc Oxide Nanoparticles Synthesis

Sirohi, Sandeep; Rao, Chinta Koteswara; Rajesh, Andanamala Vijay; Sruthi, T.; Prakash, DV Surya

doi:10.31782/ijcrr.2022.14302

Cited by 4 publications

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“…Similar observations for the optimization of nanoparticles with different metal ion concentrations have also been reported elsewhere [28]. Furthermore, the pH value of the reaction solution has a fundamental role in ZnO nanoparticles' synthesis [24,27]. Based on conducted studies, ZnO nanoparticles synthesized at lower solution pH values (in acidic conditions), irrespective of the synthetic approach and reaction conditions, are characterized by smaller crystallite sizes compared with those produced in neutral or alkaline conditions.…”

Section: Introductionsupporting

confidence: 67%

“…Similarly, the crystallite size of the zinc oxide nanoparticles also increases as the concentration of the precipitating agents increases [24]. In another study [27], it was observed that increasing the concentration of the Zn precursor salt beyond a certain limit (>0.3 M) led to a decrease in the formation of zinc oxide nanoparticles. Similar observations for the optimization of nanoparticles with different metal ion concentrations have also been reported elsewhere [28].…”

Section: Introductionmentioning

confidence: 88%

“…The size of ZnO crystallites varies based on the nucleation time, as reported by various researchers [24]. In particular, extended nucleation periods result in the creation of larger crystallite sizes [27]. This may be attributed to particles having an ample amount of time to merge, leading to the generation of larger ZnO particles through subsequent fusion [24].…”

Section: Introductionmentioning

confidence: 90%

“…In general, varying morphologies of ZnO nanoparticles have been observed at different solution pH levels, with the crystallite size being dependent on the pH of the solution [24]. Temperature proves to be another crucial factor during the synthesis of ZnO nanoparticles [24,27]. In most reported cases, the crystallite size of ZnO nanoparticles tends to grow larger as the synthesis temperature increases.…”

Section: Introductionmentioning

confidence: 99%

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Optimization of ZnO Nanoparticles’ Synthesis via Precipitation Method Applying Taguchi Robust Design

Gatou,

Kontoliou,

Volla

et al. 2023

Catalysts

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Zinc oxide (ZnO) possesses exceptional potential to be utilized in water and wastewater treatment applications, either as a photocatalyst or in membrane incorporation. In the present study, ZnO nanoparticles were synthesized using the precipitation method. The Taguchi approach with the L32b orthogonal array was utilized in order to optimize the experimental conditions for the synthesis of the nanoparticles and to ensure that relatively smaller-sized particles were obtained. The design was characterized by ten factors, where nine of them possessed four levels, while one had two levels. This study’s design factors were the type of Zn precursor, the concentration of the Zn precursor, the type of precipitating agent, the precipitation agent’s concentration, the type of utilized solvent, the pH value of the solvent, the temperature used during the synthetic procedure, the calcination temperature, the time of stirring during synthesis, as well as the stirring speed. The influences of those factors on the selected response parameters (the average crystallite size, degree of crystallinity, energy band gap (Eg), and photodegradation constant (k)) were then evaluated. XRD analysis and the calculated Eg values indicated that the hexagonal wurtzite structure was the only crystalline phase present in the produced samples. The photocatalytic efficiency of all ZnO nanoparticles was examined in the degradation of rhodamine B under UV light irradiation. The optimal conditions were achieved using zinc acetate dihydrate as the Zn precursor at a concentration equal to 0.3 M, sodium hydroxide as the precipitating agent (1.5 M), methanol as the solvent (the pH value of the solvent was equal to 13), a temperature during the synthetic procedure of 70 °C, 600 °C as calcination temperature, a 90 min stirring time, and 700 rpm as the stirring speed. The optimized ZnO sample was synthesized based on the aforementioned conditions and thoroughly characterized. The acquired results confirmed the prediction of the Taguchi approach, and the most enhanced k-value was observed.

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Section: Introductionsupporting

confidence: 67%

Section: Introductionmentioning

confidence: 88%

Section: Introductionmentioning

confidence: 90%

Section: Introductionmentioning

confidence: 99%

See 2 more Smart Citations

Optimization of ZnO Nanoparticles’ Synthesis via Precipitation Method Applying Taguchi Robust Design

Gatou,

Kontoliou,

Volla

et al. 2023

Catalysts

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Green synthesis and characterization of zinc oxide nanoparticles using Monoon longifolium leave extract for biological applications

Bekele,

Ganta,

Endashaw

2024

Discov. Chem.

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The present study deals with the biosynthesis of zinc oxide nanoparticles (ZnO NPs) using the Monoonlongifolium (M. longifolium) leaf extract. The prepared ZnO NPs were characterized by XRD, FTIR, UV–Vis, TGA/DTA, and SEM. The synthesis parameters, such as plant extract volume (10–50 mL), heating duration (15 min), zinc nitrate concentration (1 mM), reaction time (1 h), and temperature (60 °C), were optimized. The synthesized ZnO NPs exhibited significant antibacterial activity against Staphylococcusaureus (22 ± 0.57 mm) and Escherichiacoli (19 ± 1 mm), as well as antifungal activity against Candidaalbicans (21 ± 0.16 mm), as determined by the agar-well-diffusion method. The minimum inhibitory concentration (MIC) of ZnO-NPs against S. aureus (6.25µg/mL) and E. coli (12.5 µg/mL), respectively, while the minimum fungicidal concentration (MFC) was 25 µg/mL against Candidaalbicans. Additionally, the antioxidant activity of the ZnO NPs ranged from 0 to 78% (IC50 = 12.5 μg/mL). These results demonstrate the potential of the synthesized ZnO NPs as effective antibacterial, antifungal, and antioxidant agents.

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Biogenic Synthesis, Optimization, and characterization of zinc oxide nanoparticles using Rumex abyssinicus Jacq root extract for antioxidant and antibacterial activities

Wendu Digisu,

Berhe Yaebyo,

Lakew Kebede

et al. 2024

Results in Chemistry

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Studies on Characterization and Optimization Parameters of Zinc Oxide Nanoparticles Synthesis

Cited by 4 publications

References 0 publications

Optimization of ZnO Nanoparticles’ Synthesis via Precipitation Method Applying Taguchi Robust Design

Optimization of ZnO Nanoparticles’ Synthesis via Precipitation Method Applying Taguchi Robust Design

Green synthesis and characterization of zinc oxide nanoparticles using Monoon longifolium leave extract for biological applications

Biogenic Synthesis, Optimization, and characterization of zinc oxide nanoparticles using Rumex abyssinicus Jacq root extract for antioxidant and antibacterial activities

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