The synthesis of CuO and NiO nanoparticles by facile thermal decomposition of metal-Schiff base complexes and an examination of their electric, thermoelectric and magnetic Properties

Ibrahim, E.M.M.; Abdel‐Rahman, Laila H.; Abu‐Dief, Ahmed M.; Elshafaie, A.; Hamdan, Samar Kamel; Ahmed, A. M.

doi:10.1016/j.materresbull.2018.08.020

Cited by 80 publications

(21 citation statements)

References 45 publications

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“…The films average grain size (D av ) (i.e. coherently diffracting domains) is calculated by using Debye-Scherer formula [30][31][32][33][34][35][36].…”

Section: Microstructure Analysis By Xrdmentioning

confidence: 99%

Structure and optical properties of polycrystalline ZnSe thin films: validity of Swanepol’s approach for calculating the optical parameters

Hasaneen

Alrowaili

Mohamed

2020

Mater. Res. Express

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Ultrasonically cleaned glass slides are used as substrates for receiving the different thickness of Zinc selenide (ZnSe) films. The deposition processes of our investigated films were done at room temperature using physical thermal evaporation mechanism under vacuum ≈2×10 5 mbar. We investigated the optical and structural parameters of ZnSe thin films in correlation with film thickness (200-650 nm). Various techniques such as UV-vis-NIR spectrophotometer, x-ray diffraction lines and field emission scanning electron microscope were used to investigate aforementioned parameters. Structural analysis indicate that the films exhibited cubic preferred orientation along the plane (111) and the crystallinity and crystallite size of films increases linearly with film thickness. The optical band gap ranges from 2.69 to 2.81 eV and it is founded that it increases with film thickness. According to the applied Swanepoel's approach, it is possible to estimate the optical parameters and average thickness of the ZnSe thin films of different thicknesses with higher accuracy.

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“…The films average grain size (D av ) (i.e. coherently diffracting domains) is calculated by using Debye-Scherer formula [30][31][32][33][34][35][36].…”

Section: Microstructure Analysis By Xrdmentioning

confidence: 99%

Structure and optical properties of polycrystalline ZnSe thin films: validity of Swanepol’s approach for calculating the optical parameters

Hasaneen

Alrowaili

Mohamed

2020

Mater. Res. Express

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“…If the goal is to produce high-purity nanoparticles, wet-chemical methods are an interesting group of processes with many different approaches. Some of these approaches are thermal decomposition, hydrothermal, , solvothermal, coprecipitation, − or sol–gel, ,, for instance.…”

Section: Introductionmentioning

confidence: 99%

Influence of the Synthesis Route in Obtaining the Cubic or Tetragonal Copper Ferrite Phases

Rosa

Segarra

2020

Inorg. Chem.

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In this work, magnetic copper ferrite nanoparticles are synthesized by polymer-assisted sol-gel and co-precipitation methods. The obtained purity and particle size reach values of 96 % and 94 nm, respectively. Evident differences in the crystal structure have been found in the synthesized nanoparticles. A tetragonal structure is formed by the sol-gel method, while the cubic form is obtained when the co-precipitation approach is used. This work provides an experimental evidence of the formation of both phases by using the same reactants and thermal conditions, and only modifying the technical procedure. The formation and stability of each phase is analysed by temperature dependent measurements, and the observed crystal structure differences are used to propose a potential fundamental explanation to our observations based on a difference on the cations' distribution and the Jahn-Teller distortion. Moreover, different copper ferrite purity and particle sizes are found when using each of the methods. The spherical shape of the particles and their tendency to sinter forming micrometric clusters are observed by electron microscopy. Finally, the divergence in magnetization between the samples prepared by each method support our argument about the different cations' distribution and open the door to a wide range of different technological applications for these materials.

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“…The CuO-NPs are mostly used as catalysts, polymer reinforcing agents, semiconductors, solar cells, magnetic storage media, water disinfectants, gas sensors, emission devices, and food packaging materials [ 104 ]. Many methods are employed for the fabrication of CuO-NPs, such as microwave [ 105 ], auto-combustion [ 106 ], electrochemical [ 107 ], and thermal decomposition [ 108 ]. Nanocomposites have been synthesized by adding CuO-NPs, chitosan nanofibers, and bacterial nanofibers using the chemical precipitation method [ 109 ].…”

Section: Metal Oxide Nanoparticles For Food Packaging Applicationmentioning

confidence: 99%

Applications of Inorganic Nanoparticles in Food Packaging: A Comprehensive Review

Dash¹,

Deka²,

Punia

et al. 2022

Polymers

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Nanoparticles (NPs) have acquired significance in technological breakthroughs due to their unique properties, such as size, shape, chemical composition, physiochemical stability, crystal structure, and larger surface area. There is a huge demand for packaging materials that can keep food fresher for extended periods of time. The incorporation of nanoscale fillers in the polymer matrix would assists in the alleviation of packaging material challenges while also improving functional qualities. Increased barrier properties, thermal properties like melting point and glass transition temperatures, and changed functionalities like surface wettability and hydrophobicity are all features of these polymers containing nanocomposites. Inorganic nanoparticles also have the potential to reduce the growth of bacteria within the packaging. By incorporating nano-sized components into biopolymer-based packaging materials, waste material generated during the packaging process may be reduced. The different inorganic nanoparticles such as titanium oxide, zinc oxide, copper oxide, silver, and gold are the most preferred inorganic nanoparticles used in food packaging. Food systems can benefit from using these packaging materials and improve physicochemical and functional properties. The compatibility of inorganic nanoparticles and their various forms with different polymers make them excellent components for package fortification. This review article describes the various aspects of developing and applying inorganic nanoparticles in food packaging. This study provides diverse uses of metals and metal oxides nanoparticles in food packaging films for the development of improved packaging films that can extend the shelf life of food products. These packaging solutions containing nanoparticles would effectively preserve, protect, and maintain the quality of the food material.

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The synthesis of CuO and NiO nanoparticles by facile thermal decomposition of metal-Schiff base complexes and an examination of their electric, thermoelectric and magnetic Properties

Cited by 80 publications

References 45 publications

Structure and optical properties of polycrystalline ZnSe thin films: validity of Swanepol’s approach for calculating the optical parameters

Structure and optical properties of polycrystalline ZnSe thin films: validity of Swanepol’s approach for calculating the optical parameters

Influence of the Synthesis Route in Obtaining the Cubic or Tetragonal Copper Ferrite Phases

Applications of Inorganic Nanoparticles in Food Packaging: A Comprehensive Review

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