Synthesis of Quantum Confined Nickel Oxide and Differentially Doped Nickel Oxide Nanostructure and Their Antifungal Activities

Soni, Atul; Kumar, Sunil; Kaushal, Deepika; Sharotri, Nidhi; Maurya, Inderesh Kumar; Sharma, Jadab; Sharma, Anjna; Kumar, Manish

doi:10.1166/asem.2019.2379

“…Presently, our group is focused on the synthesis of transition metal oxide NPs and enhancing their properties by doping transition metals in these metal oxides (Kumar et al 2016(Kumar et al , 2017Atul et al 2019;Soni et al 2019Soni et al , 2022. Taking in the consideration, the features of co-precipitation method and cobalt oxide; here we initially targeted the synthesis of bare and doped cobalt oxide NPs employing the coprecipitation method.…”

Section: Introductionmentioning

confidence: 99%

Fe-Doped Nano-Cobalt Oxide Green Catalysts for Sulfoxidation and Photo Degradation

Soni

¹

,

Maru

²

,

Behal

³

et al. 2023

Preprint

Self Cite

0

View full text Add to dashboard Cite

Nanoparticles (NPs) of cobalt oxide and Fe/Ni-doped cobalt oxide has been prepared by the co-precipitation method. XPS analysis established the chemical nature of these NPs in terms of atomic as well as molecular formulations and EDAX analysis complemented the XPS results displaying the presence of Fe and Ni atoms in the cobalt oxide NPs revealing successful doping of Fe and Ni in cobalt oxide NPs. The impact of Fe and Ni-doping on the structure and physico-chemical properties of cobalt oxide NPs was also established by XPS analysis. The presence of metal-oxide bonds was further established by FTIR (Fourier transform infrared spectroscopy) and HRTEM (High resolution transmission electron microscopy) analysis confirmed the formation of NPs. Among bare and Fe/Ni-doped cobalt oxide NPs, Fe-doped cobalt oxide NPs showed maximum photocatalytic activity against methylene blue as well as Fe-doped cobalt oxide NPs also acted as an excellent catalyst for the sulfoxidation of sulphides with 99 % conversion, and 95 % selectivity under green reaction conditions utilising water as a solvent.

show abstract

“…Presently, our group is focused on the synthesis of transition metal oxide NPs and enhancing their properties by doping transition metals in these metal oxides (Kumar et al 2016(Kumar et al , 2017Atul et al 2019;Soni et al 2019Soni et al , 2022. Taking in the consideration, the features of co-precipitation method and cobalt oxide; here we initially targeted the synthesis of bare and doped cobalt oxide NPs employing the coprecipitation method.…”

Section: Introductionmentioning

confidence: 99%

Fe-doped nano-cobalt oxide green catalysts for sulfoxidation and photo degradation

Soni,

Maru,

Patel

et al. 2023

Clean Techn Environ Policy

3

0

View full text Add to dashboard Cite

Nanoparticles (NPs) of cobalt oxide and Fe/Ni-doped cobalt oxide has been prepared by the coprecipitation method. XPS analysis established the chemical nature of these NPs in terms of atomic as well as molecular formulations and EDAX analysis complemented the XPS results displaying the presence of Fe and Ni atoms in the cobalt oxide NPs revealing successful doping of Fe and Ni in cobalt oxide NPs. The impact of Fe and Ni-doping on the structure and physico-chemical properties of cobalt oxide NPs was also established by XPS analysis. The presence of metal-oxide bonds was further established by FTIR (Fourier transform infrared spectroscopy) and HRTEM (High resolution transmission electron microscopy) analysis con rmed the formation of NPs. Among bare and Fe/Ni-doped cobalt oxide NPs, Fe-doped cobalt oxide NPs showed maximum photocatalytic activity against methylene blue as well as Fe-doped cobalt oxide NPs also acted as an excellent catalyst for the sulfoxidation of sulphides with 99 % conversion, and 95 % selectivity under green reaction conditions utilising water as a solvent.

show abstract

Molecular interaction investigation of some alkaline earth metal salts in aqueous citric acid at various temperatures by physiochemical studies

Kumar

¹

,

Kant

²

,

Kaushal

³

2021

Zeitschrift Für Physikalische Chemie

3

0

View full text Add to dashboard Cite

Densities, ultrasonic velocity, conductance and viscosity of some alkaline earth metal chlorides such as magnesium chloride (MgCl2) and calcium chloride (CaCl2) were calculated in the concentration range (0.01–0.12 mol kg−1) in 0.01 mol kg−1 aqueous solution of citric acid (CA + H2O) at four varying temperatures T 1 = 303.15 K, T 2 = 308.15 K, T 3 = 313.15 K and T 4 = 318.15 K. The parameters like apparent molar volume (ϕ v ), limiting apparent molar volume ( ϕ v o ${\phi }_{v}^{o}$ ) and transfer volume (Δtr ϕ v o ${\phi }_{v}^{o}$ ) were calculated from density data. Viscosity data have been employed to calculate Falkenhagen coefficient (A), Jone–Dole’s coefficient (B), relative viscosity (η r ), and relaxation time (τ) whereas limiting molar conductance ( Λ m o ${{\Lambda}}_{m}^{o}$ ) has been evaluated from conductance studies. Using these parameters, various type of interactions occurred in the molecules have been discussed. Values of Hepler’s constant (d 2 ϕ v o ${\phi }_{v}^{o}$ /dT 2) p , (dB/dT) and d( Λ m o ${{\Lambda}}_{m}^{o}$ η o )/dT suggests that both MgCl2 and CaCl2 behave as structure breaker in (CA + H2O) system. The positive value of transfer volume exclusively tells about solute–solvent interactions which further indicate that both metal chlorides distort the structure of water and act as structure breaker. These studies are helpful in understanding the nature of interactions occurs in biological systems as CA and metal salts are essential for normal functioning of body.

show abstract

Synthesis of Quantum Confined Nickel Oxide and Differentially Doped Nickel Oxide Nanostructure and Their Antifungal Activities

Cited by 5 publications

References 0 publications

Fe-Doped Nano-Cobalt Oxide Green Catalysts for Sulfoxidation and Photo Degradation

Fe-Doped Nano-Cobalt Oxide Green Catalysts for Sulfoxidation and Photo Degradation

Fe-doped nano-cobalt oxide green catalysts for sulfoxidation and photo degradation

Molecular interaction investigation of some alkaline earth metal salts in aqueous citric acid at various temperatures by physiochemical studies

Contact Info

Product

Resources

About