Synthesis and characterization of a narrow size distribution of zinc oxide nanoparticles

Zak, A. Khorsand; Razali, R.; Majid, WH Abd; Darroudi, Majid

doi:10.2147/ijn.s19693

Cited by 243 publications

(117 citation statements)

References 18 publications

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“…spectrum of biosynthesized Cu 4 O 3 NPs and Razma seed extract energy and find the maximum in the derivative spectrum at lower-energy sides[34,35].…”

mentioning

confidence: 95%

Biosynthesis of Cu4O3 nanoparticles using Razma seeds: application to antibacterial and cytotoxicity activities

Thanuja

Udayabhanu²,

Nagaraju³

et al. 2019

SN Appl. Sci.

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In the present work, Cu 4 O 3 nanoparticles were prepared by biosynthesis method using Razma seeds and copper sulfate as a precursors. The synthesized Cu 4 O 3 nanoparticles were characterized using various analytical tools such as XRD, FTIR, UV-Vis, SEM and TEM. The average crystallite size of the prepared Cu 4 O 3 nanoparticles was calculated by Debye-Scherrer's equation and found to be 13 nm. The TEM images clearly reveal the average size of the particles is 27 nm. Antibacterial activity of Cu 4 O 3 nanoparticles was tested against Gram-positive (Staphylococcus aureus) and Gram-negative (Escherichia coli) bacteria by agar well diffusion method. The cytotoxic activity of synthesized Cu 4 O 3 nanoparticles was examined against human prostate cancer cells (PC-3). The prepared NPs show the significant antioxidant activity through scavenging of 1,1-diphenyl-2-picrylhydrazyl free radicals.

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“…spectrum of biosynthesized Cu 4 O 3 NPs and Razma seed extract energy and find the maximum in the derivative spectrum at lower-energy sides[34,35].…”

mentioning

confidence: 95%

Biosynthesis of Cu4O3 nanoparticles using Razma seeds: application to antibacterial and cytotoxicity activities

Thanuja

Udayabhanu²,

Nagaraju³

et al. 2019

SN Appl. Sci.

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show abstract

“…Besides, this process has been widely used specially to synthesize metal oxides NPs since it is more reliable, affordable, and undergo simpler process of synthesis. 23 Wu et al 17 also described that solvothermal synthesis method is free from using surfactant in which this offers a better potential for environmental friendly synthesis that can be produce in large quantities. Besides, solvothermal synthesis is considered one of the most promising approach to synthesize NPs.…”

Section: Introductionmentioning

confidence: 99%

“…20 In solvothermal synthesis, organic solvent mainly alcohol such as ethanol as being used by previous researchers to synthesize ZnO NPs. 4,23,24 Furthermore, NPs characterization using XRD, TEM, BET, EDX, FT-IR spectroscopy, and UV-Vis spectroscopy are fundamental steps especially for examining NPs surface properties and functionality. It is important to characterize NPs in order to determine the behaviour of NPs for further study such as toxicological studies.…”

Section: Introductionmentioning

confidence: 99%

Synthesis and Characterization of Zinc Oxide Nanoparticles with Small Particle Size Distribution

Shamhari¹,

Wee²,

Chin³

et al. 2018

ACSi

154

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Solvothermal synthesis has shown to have a great potential to synthesize Zinc Oxide nanoparticles (ZnO NPs) with less than 10 nm size. In this study, we present a rapid synthesis of ZnO NPs in which ZnO NPs with more uniform shape and highly dispersed were synthesized using zinc acetate dihydrate (Zn(CH 3 COO) 2 2H 2 O) and potassium hydroxide (KOH) as a precursor and absolute ethanol as solvent via solvothermal method. Few techniques were exploited to characterize synthesized ZnO NPs including X-ray diffraction (XRD), transmission electron microscope (TEM), Brunauer-Emmett-Teller (BET), energy-dispersive X-ray spectroscopy (EDX), fourier transform infrared (FT-IR) spectroscopy, and ultraviolet visible (UV-Vis) spectroscopy. Synthesized ZnO NPs that were prepared via solvothermal synthesis method at 60 °C for 3 hours exhibited a wurtzite structure with a crystalline size of 10.08 nm and particle size of 7.4 ± 1.2 nm. The UV-vis absorption spectrum has shown peak at 357 nm indicate the presence of ZnO NPs. Hence, better quality with uniform size ZnO NPs can be easily synthesized with reduced amount of time via solvothermal synthesis method rather than using other complicated and lengthy synthesis methods.

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“…5 exhibits three absorption bands centered at 367, 312 and 240 nm. The position of the first band suggest that can be assigned to the intrinsic band-gap absorption of zincate due to the electron transitions from the valence band to the conduction band (O2p → Zn3d) [20], interaction to the exciton emission from zincate group [21] while the peak at 240 nm is due to charge transfer (O2p → Ca 2+ ). The Eg values for band gap materials were calculated from the plot (αhυ) 2 versus photon energy (hυ) and by extrapolation of the linear portion of the curves until they intercept the…”

Section: Scanning Electronic Microscopy (Sem)mentioning

confidence: 99%

Ca-hydroxyzincate: Synthesis and Enhanced Photocatalytic Activity for the Degradation of Methylene Blue Under UV-Light Irradiation

et al. 2019

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This paper involves the investigation of the calcined Ca-hydroxyzincate dehydrate (CHZ) as solid base catalysts for photocatalytic degradation of methylene blue. X-ray powder diffraction (XRD), scanning electron microscopy (SEM), thermogravimetric analysis (TG-DTA), and UV-Vis spectroscopy were carried out to characterize and evaluate the as-prepared samples. The calcined catalysts performances were promising compared to non-calcined material. All the photocatalysts prepared under different processing temperatures (200, 400 and 600 °C) displayed 100% methylene blue degradation compared to the non-calcined sample with 100% dye removal.

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Synthesis and characterization of a narrow size distribution of zinc oxide nanoparticles

Cited by 243 publications

References 18 publications

Biosynthesis of Cu4O3 nanoparticles using Razma seeds: application to antibacterial and cytotoxicity activities

Biosynthesis of Cu4O3 nanoparticles using Razma seeds: application to antibacterial and cytotoxicity activities

Synthesis and Characterization of Zinc Oxide Nanoparticles with Small Particle Size Distribution

Ca-hydroxyzincate: Synthesis and Enhanced Photocatalytic Activity for the Degradation of Methylene Blue Under UV-Light Irradiation

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