A novel heterometallic compound for design and study of electrical properties of silver nanoparticles-decorated lead compounds

Nassar, A. M.; Zeid, E. F. Abo; Elseman, Ahmed Mourtada; Alotaibi, Nasser F.

doi:10.1039/c7nj03682e

Cited by 25 publications

(9 citation statements)

References 48 publications

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“…This behavior may be ascribed to the increase of crystal lattice defects because of doping of metal ions and smaller particle size formation. Depending on the FWHM values at the preferred orientations (−111) at 2θ=35.59°, the samples crystallite size was evaluated using Scherer formula [27].…”

Section: Resultsmentioning

confidence: 99%

Study the influence of silver and cobalt on the photocatalytic activity of copper oxide nanoparticles for the degradation of methyl orange and real wastewater dyes

Zeid

Ibrahem

Mohamed

et al. 2020

Mater. Res. Express

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CuO (S1) Single pure component nanoparticles (SPCNPs), Ag/CuO (S2) binary component hybrid nanoparticles (BCHNPS), Co1/Ag/CuO (S3), and Co2/Ag/CuO (S4) ternary component hybrid nanoparticles (TCHNPS) were synthesized via co-precipitation method. Several spectroscopic methods investigated the characterization of the prepared catalysts. Based on Crystal properties, CuO exhibit a monoclinic phase (tenorite); the grain size of the prepared samples was 28.15 nm, 29.42 nm, 27.86 nm, and 26.67 nm for S1, S2, S3, and S4 respectively. The addition of different content from Co as a dopant to silver decorated CuO gives a clear change to a flake shape. The presence of the IR absorption peaks in the region 400-600 cm −1 matched to the distinctive stretching vibrations of Cu-O bonds in the monoclinic phase structure of CuO. Disappearance of the Raman peaks of CuO and appearing of the new characteristic peaks of cobalt oxide confirms the doping process. Using DRS analysis, arrange of the bandgap values were S1 > S2 > S3 > S4. For the synthetic methyl orange and raw industrial dye, the photodegradation parameters were measured. The results show the excellent activity of Co2/Ag/CuO NPS compared with other samples. Electrical studies of the catalysts show a higher value for the dielectric constant in the higher and lower frequency regions for the sample S4. The hopping process of the charge carrier's improving as a result of the increase of applied field frequency which leads to an increase in the material conductivity.

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Section: Resultsmentioning

confidence: 99%

Study the influence of silver and cobalt on the photocatalytic activity of copper oxide nanoparticles for the degradation of methyl orange and real wastewater dyes

Zeid

Ibrahem

Mohamed

et al. 2020

Mater. Res. Express

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“…The conductivity behaviour for Poly 65 is shown in figure 8a. It was observed that the electrical conductivity has lower values in the range of 34−298 • C. As the temperature increases from 298 to 393 • C, the electrical conductivity sharply increases to a higher value [56]. On the other hand, figure 8b reveals the characteristic of the MgSi 25 sample.…”

Section: Conductivity Propertiesmentioning

confidence: 95%

Tunable optical and dielectric properties of polymeric composite materials based on magneso-silicate

et al. 2019

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Magneso-silicate (MgSi) as an inorganic ion exchange material was synthesized by a precipitation technique. Then, the MgSi was impregnated into polyacrylamide acrylic acid and its composites (Poly) by condensation polymerization. To study the effect of γ-radiation, the polyacrylamide acrylic acid and its MgSi samples were synthesized using γ-irradiating systems at 25, 65 and 90 kGy. The variations in the radiation dose and amorphous structure were altered and confirmed by X-ray diffraction (XRD). Moreover, the absorbance and band-gap energy were enhanced by inserting MgSi into the polymeric composites (Poly). Furthermore, variations in temperature with dielectric constant, dielectric loss and conductivity of the samples at various frequencies from 100, 500, 1000, 2000 to 4000 Hz have been explained.

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“…These dispersed dye molecules block sunlight from reaching the lower depths of the water, reduce the dissolved oxygen level in the water, and thereby inhibit the growth and development of marine plants and animals [ 5 , 6 , 7 ]. Most seriously, most of these dyes are mutagenic and carcinogenic and cause severe damage to human life [ 8 , 9 , 10 ]. Therefore, it is necessary to remove the dyes from wastewater for environmental protection and remediation.…”

Section: Introductionmentioning

confidence: 99%

Highly Efficient, Low-Cost, and Magnetically Recoverable FePt–Ag Nanocatalysts: Towards Green Reduction of Organic Dyes

et al. 2018

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Nowadays, synthetic organic dyes and pigments discharged from numerous industries are causing unprecedentedly severe water environmental pollution, and conventional water treatment processes are hindered due to the corresponding sophisticated aromatic structures, hydrophilic nature, and high stability against light, temperature, etc. Herein, we report an efficient fabrication strategy to develop a new type of highly efficient, low-cost, and magnetically recoverable nanocatalyst, i.e., FePt–Ag nanocomposites, for the reduction of methyl orange (MO) and rhodamine B (RhB), by a facile seed deposition process. X-ray diffraction results elaborate that the as-synthesized FePt–Ag nanocomposites are pure disordered face-centered cubic phase. Transmission electron microscopy studies demonstrate that the amount of Ag seeds deposited onto the surfaces of FePt nanocrystals increases when increasing the additive amount of silver colloids. The linear correlation of the MO and RhB concentration versus reaction time catalyzed by FePt–Ag nanocatalysts is in line with pseudo-first-order kinetics. The reduction rate constants of MO and RhB increase with the increase of the amount of Ag seeds. FePt–Ag nanocomposites show good separation ability and reusability, and could be repeatedly applied for nearly complete reduction of MO and RhB for at least six successive cycles. Such cost-effective and recyclable nanocatalysts provide a new material family for use in environmental protection applications.

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A novel heterometallic compound for design and study of electrical properties of silver nanoparticles-decorated lead compounds

Abstract: A novel Ag-NPs decorated on hexagonal-like PbCO3 was constructed with a novel heterometallic compound (AgPb(C2O4)(NO3)) through thermal heating at 523 K.

Cited by 25 publications

References 48 publications

Study the influence of silver and cobalt on the photocatalytic activity of copper oxide nanoparticles for the degradation of methyl orange and real wastewater dyes

Study the influence of silver and cobalt on the photocatalytic activity of copper oxide nanoparticles for the degradation of methyl orange and real wastewater dyes

Tunable optical and dielectric properties of polymeric composite materials based on magneso-silicate

Highly Efficient, Low-Cost, and Magnetically Recoverable FePt–Ag Nanocatalysts: Towards Green Reduction of Organic Dyes

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