Preparation of NiO nanoparticles from metal-organic frameworks via a solid-state decomposition route

Salavati‐Niasari, Masoud; Mohandes, Fatemeh; Davar, Fatemeh; Mazaheri, Mehdi; Monemzadeh, M.; Yavarinia, Nooshin

doi:10.1016/j.ica.2009.04.025

Cited by 121 publications

(33 citation statements)

References 35 publications

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“…These sizes are in good agreement with that calculated by XRD. Comparing with reported results [36], it is observed that the relatively higher calcination temperature is responsible for the agglomeration of the nanoparticles. It is expected that using less thermally stable doped polymers will enable decomposing the precursors at relatively lower temperature and hence, agglomeration will be avoided [37].…”

Section: Corrosion Inhibitionsupporting

confidence: 51%

Synthesis of Fe2O3, Co3O4 and NiO nanoparticles by thermal decomposition of doped polyaniline precursors

Zoromba

Hosny

2014

J Therm Anal Calorim

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Polyaniline (PANI) was synthesized by the oxidative polymerization of aniline with potassium dichromate as an oxidant. PANI was characterized by IR, UV, and TG. The effect of inclusion of CoCl 2 , NiCl 2 , and FeCl 3 on the thermal and optical properties of polyaniline has been studied. The results showed that the doped PANIs are thermally more stable than the pure PANI. The optical band gap of the doped PANIs is smaller than the pure polymer. PANI has higher corrosion inhibition of Al than the doped polymers. Doped PANIs have been used as molecular precursors for the production of Co 3 O 4 , NiO, and Fe 2 O 3 nanoparticles by thermal decomposition route. The structures of the obtained metal oxides have been characterized by XRD and TEM. The average sizes of the prepared nanoparticles were estimated as 22, 17, and 13 nm for Co 3 O 4 , NiO, and Fe 2 O 3 samples, respectively.

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Section: Corrosion Inhibitionsupporting

confidence: 51%

Synthesis of Fe2O3, Co3O4 and NiO nanoparticles by thermal decomposition of doped polyaniline precursors

Zoromba

Hosny

2014

J Therm Anal Calorim

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“…The strong absorption peak at 359.3 nm indicates the formation of NiO and this strong band is due to the electronic transition from valence band to the conduction band in the NiO semiconductor 20 . But in case of bulk NiO powder does not show any observable absorption band.…”

Section: Resultsmentioning

confidence: 99%

Synthesis, Characterization and In Vitro Antibacterial Effect of 4H-Benzo[g]chromene Derivatives using Nano-NiO

2017

Chem Sci Trans

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Abstract:The domino Knoevenagel cyclocondensation reactions via substituted aldehydes, activated methylene reagent and 2-hydroxy-1, 4-naphthoquinone gives benzo[g]chromenes in presence of nano-NiO using acetonitrile as a solvent at ambient temperature. This method gives the desired products from good to excellent yield. The salient features of this atom economical procedure are ease of manipulation, simpler workup, high yield processing, easy handling, inexpensiveness, reusability of catalyst and tolerance to a wide range of functional groups. The synthesized chromene derivatives are screened for antibacterial activity and antifungal activity using Kirby-Bauer method. The synthesized compounds 3a-3k exhibits significant inhibition to antibacterial and antifungal activity compared with the standard drug Ciprofloxacin and Flucanazole respectively.

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“…The FTIR spectra at room temperature in the range of (200-4000) cm -1 for the annealed NiONPs samples at 400 0 C and 600 0 C are shown in Fig.4.The absorption band at 439 cm -1 is assigned to Ni-O stretching mode, which is a clear evidence for the presence of the crystalline NiO (Gondal et al, 2012;Rahdar et al, 2015 andSalavati-Niasari et al, 2009).The broadness of the absorption band indicates that the NiO powders are nanocrystals (Qiao et al, 2009). The absorption bands at 555 cm -1 and 3389 cm -1 attributed to Ni-O-H and O-H stretching bonds, respectively (Rahdar et al, 2015).…”

Section: The Fourier Transformed Infrared (Ftir)mentioning

confidence: 90%

“…In addition, it was used in many potential applications such as in battery electrodes, gas sensors, photo-electronic devices….etc. (Gondal et al, 2012;Qiao et al, 2009 andSalavati-Niasari et al, 2009). S.A.…”

Section: Introductionmentioning

confidence: 99%

Biosynthesis of Nickel Oxide Nanoparticles Using Fusarium verticillioides (Sacc.) and Their Biological Activity against Some Causative Agents of Mycotic Keratitis

2017

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IN THE present study, Nickel oxide (NiO) nanoparticles (NiONPs) were bio-synthesized extracellularly by the fungus Fusarium verticillioides (F. verticillioides) using Nickel Nitrate Hexahydrate Ni(NO 3 ) 2 .6H 2 O as a starting material. The formed NiONPs were precipitated in the form of a dark precipitate after adding the fungal filtrate to Ni(NO 3 ) 2 .6H 2 O solution. The properties of this formed precipitate were characterized by X-ray diffraction (XRD), transmission electron microscopy (TEM) and Fourier transformed infrared (FTIR). The XRD pattern indicated that the NiONPs had a face-centered cubic (FCC) structure and their average crystallite size was found to be 8-17.7 nm. The average particle size found to be 8.5-20.7 nm from TEM image, which was compatible with XRD result. The FTIR analysis bands revealed the chemical composition bonding of the formed nano-NiO compound.The antifungal activity of the formed NiONPs was tested against some human pathogenic fungi which were isolated from mycotic keratitis patients, inpatient department of ophthalmology hospital, Tanta University, Egypt. The best results obtained against Candida albicans, C. tropicalis and Aspergillus niger where the minimum inhibitory concentration (MIC) was 12.5, 25 and 25 mg/ml, respectively. Further confirmation of NiONPs biological activity was employed by measurement of their concentration at different intervals within skin, blood and liver of experimental animals, showing a promising absorption and washing out rates from mice tissues; these results indicated that the NiONPs did not accumulated within mice bodies.

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Preparation of NiO nanoparticles from metal-organic frameworks via a solid-state decomposition route

Cited by 121 publications

References 35 publications

Synthesis of Fe2O3, Co3O4 and NiO nanoparticles by thermal decomposition of doped polyaniline precursors

Synthesis of Fe2O3, Co3O4 and NiO nanoparticles by thermal decomposition of doped polyaniline precursors

Synthesis, Characterization and In Vitro Antibacterial Effect of 4H-Benzo[g]chromene Derivatives using Nano-NiO

Biosynthesis of Nickel Oxide Nanoparticles Using Fusarium verticillioides (Sacc.) and Their Biological Activity against Some Causative Agents of Mycotic Keratitis

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