Preparation and physicochemical studies on polymeric nanocomposites containing copper oxide nanoparticles

Alsheheri, Soad Z.; Alamshany, Zahra M.; Abdelaal, Magdy Y.

doi:10.1080/15685551.2023.2190222

Cited by 7 publications

(1 citation statement)

References 47 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…The EDS spectrum, mapping analysis, and Fig. 3 (m-n) all support the evenorientation of Cu, V, and O elements with atomic percentages of 29.30%, 23.03%, and 47.68%, respectively [28][29][30]. This suggests that CuV nanoparticles were successfully formed, as the distinctive peaks originate from the inner K shells of the corresponding elements.…”

Section: Surface Morphologymentioning

confidence: 60%

Ultrasound - assisted synthesized multi-phase copper vanadate (Cu 3 V 2 O 8 /Cu 2 V 2 O 7 /Cu 0.4 V 2 O 5 ) shape-controlled nanoparticles as electrode material for energy storage applications

Gowrisankar,

Mariappan,

Palani

et al. 2024

Preprint

View full text Add to dashboard Cite

In this novel study, complex phases of copper vanadium oxides, including Cu3V2O8, Cu2V2O7, and Cu0.4V2O5, were synthesized using an ultrasound-assisted co-precipitation technique and evaluated as suitable electrodes for energy storage devices that exhibit pseudo-capacitive behavior.The structural properties investigation of CuV, CuV + 0.3%PVP and CuV + 3%PVP nanoparticles at 400 oC. The XRD patterns confirm monoclinic crystal system with multi-phase nature of copper vanadate’s further morphology have been optimized with stabilizing and shape-directing agent Polyvinylpyrrolidone (CuV + 0.3%PVP and CuV + 3%PVP) only at elevated temperature 400℃. The electrochemical behavior of CuV + 0.3%PVP and CuV + 3%PVP were observed under cyclic voltammetry (CV),Galvanostatic charge and discharge (GCD) and Electronic impedance spectroscopy (EIS). Most significantly, the shape-controlled copper vanadate nanoparticles (CuV + 3%PVP) exhibited exceptional electrochemical performance, demonstrating a notable specific capacitance increased significantly23.2% improvement. The specific capacitances of CuV and CuV + 3%PVP nanoparticles are 211.09 F/g 260.4 F/g respectively, an impressive energy density of 107.25 Wh/kg and power density of 297.9W/kg at 0.5 A/g. Thus, copper-vanadate materials may be observed as capable short time e high voltage electrode for pseudo capacitor applications.

show abstract

Section: Surface Morphologymentioning

confidence: 60%

Ultrasound - assisted synthesized multi-phase copper vanadate (Cu 3 V 2 O 8 /Cu 2 V 2 O 7 /Cu 0.4 V 2 O 5 ) shape-controlled nanoparticles as electrode material for energy storage applications

Gowrisankar,

Mariappan,

Palani

et al. 2024

Preprint

View full text Add to dashboard Cite

show abstract

Investigation of structure and optical characteristics of irradiated PVP/CMC nanocomposite films based on ZnS/SnO₂ nanofillers

Abdel‐Kader,

Mohamed,

Almarashi

et al. 2023

Vinyl Additive Technology

View full text Add to dashboard Cite

PVP/CMC/50%ZnS‐50%SnO2 blends were formed by solid state reaction, sol‐gel methods and casting technique. The structure and the crystallite size of the nanofillers (ZnS and SnO2) were examined using x‐ray diffraction technique (XRD). The effect of laser irradiation energies compared to the proportions of loaded nanofillers on the films internal structure and morphology was studied using XRD. The high miscibility among blends has been confirmed through Fourier transform infrared spectroscopy (FTIR). The energy dispersive x‐ray spectroscopy (EDS) analysis proved the presence of the nanocomposite polymer blends constituent atoms. The blends surface morphology has been investigated through scanning electron microscope (SEM). The dual effect of both different laser energies and oxygen atoms content simultaneously, on the linear and nonlinear optical parameters of nanocomposite films were explored as well. Results showed that, the laser irradiation energy process has the highest enhancement on the optical properties. The optical band gap (Eg) values were reduced from 4.8 eV (in the case of unirradiated blend) to 3.5 eV (for blends irradiated with 150 mJ/cm2) for allowed direct transitions, but for allowed indirect transitions Eg decreased from 3.3 eV (for unirradiated) to 2.2 eV (for irradiated with 150 mJ/cm2).Highlights A comparative discussion upon the effect of excess oxygen atoms has been represented. A dominant effect for the laser exposure compared to both the particle size and excess oxygen atoms. The variations of the nanocomposite films structural and optical features were promising.

show abstract

Enhanced sensing performance of carboxymethyl cellulose sodium to hydrogen sulphide gas and methylene blue dye by constructing CuO@ZnO core/shell heterostructure: A DFT/TD-DFT study

Badry,

Nada,

El-Nahass

et al. 2023

Opt Quant Electron

View full text Add to dashboard Cite

Anthropogenic air and water pollution are two of the world's most serious public health threats, causing around 9 million fatalities each year. Accordingly, CuO, ZnO, and CuO@ZnO core/shell structures were optimized utilizing the time-dependent density functional theory (TD-DFT) method to study the effect of CuO@ZnO core/shell on the sensitivity of carboxymethyl cellulose sodium (CMC). Absorption spectra and optical band gap (Eg) have been investigated utilizing the TD-DFT method. The calculated Eg values for CuO and ZnO equal 1.23 and 3.29 eV, respectively, which agree well with those reported in the literature. The effects of H2S gas and methylene blue dye (MB) adsorption on the electronic characteristics of dimer CMC /CuO@ZnO structures were investigated in terms of TDM, HOMO/LUMO energy, and molecular electrostatic potential (MESP). The TDM in dimer CMC/CuO@ZnO structure was increased to 72.152 and 67.606 Debye, while ΔE was reduced by 6.42% and 82.57% due to the adsorption of H2S and MB dye, respectively. This means that it has a faster response to MB than to H2S. Additionally, MESP confirms the increased reactivity of dimer CMC/CuO@ZnO due to the adsorption process. As a result, dimer CMC/CuO@ZnO structures appear to be attractive candidates for H2S and MB dye sensing applications.

show abstract

Preparation and physicochemical studies on polymeric nanocomposites containing copper oxide nanoparticles

Cited by 7 publications

References 47 publications

Ultrasound - assisted synthesized multi-phase copper vanadate (Cu 3 V 2 O 8 /Cu 2 V 2 O 7 /Cu 0.4 V 2 O 5 ) shape-controlled nanoparticles as electrode material for energy storage applications

Ultrasound - assisted synthesized multi-phase copper vanadate (Cu 3 V 2 O 8 /Cu 2 V 2 O 7 /Cu 0.4 V 2 O 5 ) shape-controlled nanoparticles as electrode material for energy storage applications

Investigation of structure and optical characteristics of irradiated PVP/CMC nanocomposite films based on ZnS/SnO₂ nanofillers

Enhanced sensing performance of carboxymethyl cellulose sodium to hydrogen sulphide gas and methylene blue dye by constructing CuO@ZnO core/shell heterostructure: A DFT/TD-DFT study

Contact Info

Product

Resources

About

Preparation and physicochemical studies on polymeric nanocomposites containing copper oxide nanoparticles

Cited by 7 publications

References 47 publications

Ultrasound - assisted synthesized multi-phase copper vanadate (Cu 3 V 2 O 8 /Cu 2 V 2 O 7 /Cu 0.4 V 2 O 5 ) shape-controlled nanoparticles as electrode material for energy storage applications

Ultrasound - assisted synthesized multi-phase copper vanadate (Cu 3 V 2 O 8 /Cu 2 V 2 O 7 /Cu 0.4 V 2 O 5 ) shape-controlled nanoparticles as electrode material for energy storage applications

Investigation of structure and optical characteristics of irradiated PVP/CMC nanocomposite films based on ZnS/SnO2 nanofillers

Enhanced sensing performance of carboxymethyl cellulose sodium to hydrogen sulphide gas and methylene blue dye by constructing CuO@ZnO core/shell heterostructure: A DFT/TD-DFT study

Contact Info

Product

Resources

About

Investigation of structure and optical characteristics of irradiated PVP/CMC nanocomposite films based on ZnS/SnO₂ nanofillers