Green synthesis of zinc oxide nanoparticles using tomato<i>(Lycopersicon esculentum)</i>extract and its photovoltaic application

Sutradhar, Prasanta; Saha, Mitali

doi:10.1080/17458080.2015.1059504

Cited by 107 publications

(34 citation statements)

References 25 publications

(9 reference statements)

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“…while, Joel reported that chemically fabricated zinc oxide nanoparticles were commonly white and the greensynthesized nanoparticles were brown in color (Joel.C & Badhusha, 2016). The results of existing studies indicate that zinc oxide nanoparticles often have adsorption peaks between 305-375 nm (Dhanemozhi, Rajeswari, & Sathyajothi, 2017;Senthilkumar & Sivakumar, 2014;Sutradhar & Saha, 2016;Yedurkar, Maurya, & Mahanwar, 2016). The 330 nm absorption peak obtained in this study is in complete agreement with the previously published works.…”

Section: Discussionsupporting

confidence: 91%

Acute Toxicity of Zinc Oxide Nanoparticles from Satureja hortensis on Rainbow Trout (Oncorhynchus mykiss)

Taherian¹,

Jafari²,

Etminan³

et al. 2020

Turk. J. Fish. Aquat. Sci.

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Nanoparticles are commonly synthesized chemically and because of their risk for living organisms and environment, safer synthesis methods are highly considered. This work was carried out to evaluate the acute toxicity of zinc oxide nanoparticles synthesized from Satureja hortensis on rainbow trout (Oncorhynchus mykiss) by static bioassay test. The average weight and length of trout fish used in the study were 20±3 g and 15±2 cm respectively. Three groups of the experimented fish were exposed to different concentrations (1, 10 and 100 mg/L) of ZnO nanoparticles. All the exposed fish were daily observed and dead fishes were immediately removed and recorded. The obtained data were statistically analyzed using probit regression method. The LC50 value at 96 h was found to be 25.50 mg/L for trout fish which makes this nanoparticle as a low toxicity substance in terms of toxicity classification. According to the results lifetime reduced with increasing the concentration of ZnO. Based on the obtained LC50 for the synthesized ZnO from Satureja plant in this study and comparison with that of the chemically fabricated in others work, it was revealed that the green nanoparticles synthesis is much less hazardous and a good alternative technique.

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Section: Discussionsupporting

confidence: 91%

Acute Toxicity of Zinc Oxide Nanoparticles from Satureja hortensis on Rainbow Trout (Oncorhynchus mykiss)

Taherian¹,

Jafari²,

Etminan³

et al. 2020

Turk. J. Fish. Aquat. Sci.

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“…They proved that green NPs showed enhanced performance compared to chemical ZnO NPs. There have been several similar works on the synthesis of ZnO NPs via green methods . In most of these methods, the researchers tended to use natural compounds (such as gelatin, C. citriodora and Aloe) or water‐soluble chemicals; therefore, these procedures can be considered as an environmental threat.…”

Section: Introductionmentioning

confidence: 99%

Water‐based synthesis of ZnO nanoparticles via decomposition of a ternary zinc complex containing Schiff‐base, chelating, and Phen ligands

Gharagozlou

Naghibi

Ataei

2018

J Chinese Chemical Soc

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The recent environmental awareness has been the motivation for the growing preference for environmentally friendly and water‐based systems in chemical synthesis. In the present work, ZnO nanoparticles were synthesized via a novel method without any water‐insoluble compounds. At the first step, a binary Zn Schiff‐base complex was prepared from sodium salicylaldehyde‐5‐sulfonate, L‐alanine, and zinc acetate. Then, a ternary Zn complex containing the Schiff‐base, chelating, and Phen ligands was synthesized from the as‐synthesized binary Zn Schiff base and 1,10‐phenanthroline monohydrate. This intermediate product showed high water solubility and long‐term stability. Finally, ZnO nanoparticles were synthesized through the calcination of the ternary complex powder at 400, 500, and 600 °C. Combining X‐ray diffraction (XRD) and energy dispersive spectroscopy (EDS) results, it was concluded that the samples contained the ZnO phase without any impurity phases, but Fourier transform infrared (FTIR) spectra implied the presence of a remaining impurity. According to the XRD, FTIR, and photoluminescence (PL) analyses, the as‐synthesized samples differed in terms of the defect content and lattice strain. The sample calcined at 500 °C possessed the lowest defect content and lattice strain. Transmission electron microscopy (TEM) imaging revealed the formation of ZnO nanoparticles with particles sizes of <20, ~50, and ~100 nm for samples heat‐treated at the different temperatures.

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“…However, during the enlarged syntheses, reproducibility is critically important for the potential technological applications of GQDs. In continuation of our research work [27][28][29], in this work we have reported that the pyrolysis of citric acid was carried out which on further addition of sodium hydroxide for maintaining the pH produced GQDs. The effect of different pH on the formation of GQDs was studied in detail.…”

Section: Introductionmentioning

confidence: 99%

Molecular scale rapid synthesis of graphene quantum dots (GQDs)

2017

Self Cite

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Graphene quantum dots (GQDs) as a new series of nanomaterials have drawn great attention in recent years owning to their unique properties. Here we report the single-step synthesis of GQDs using pyrolysis of citric acid which produced GQDs at different pH. The effect of different pH was studied in detail to optimize the conditions of the formation of GQDs. UV-Visible absorption and normalized fluorescence spectra were applied to analyze the optical properties of GQDs. The particle size distribution of the GQDs in case of varying pH was determined to optimize the synthesis conditions. The surface morphology and microstructures were studied by atomic force microscope (AFM).

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Green synthesis of zinc oxide nanoparticles using tomato(Lycopersicon esculentum)extract and its photovoltaic application

Cited by 107 publications

References 25 publications

Acute Toxicity of Zinc Oxide Nanoparticles from Satureja hortensis on Rainbow Trout (Oncorhynchus mykiss)

Acute Toxicity of Zinc Oxide Nanoparticles from Satureja hortensis on Rainbow Trout (Oncorhynchus mykiss)

Water‐based synthesis of ZnO nanoparticles via decomposition of a ternary zinc complex containing Schiff‐base, chelating, and Phen ligands

Molecular scale rapid synthesis of graphene quantum dots (GQDs)

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