Structural, optical and luminescence properties of pure, Fe-doped and glucose-capped CdO Semiconductor nanoparticles for their Antibacterial activity

Gudla, Umesh Reddy; Suryanarayana, B.; Raghavendra, Vemuri; Parajuli, D.; Murali, N.; Dominic, Shouri; Ramakrishna, Y.; Chandramouli, K.

doi:10.1007/s10854-020-05135-3

Cited by 11 publications

(6 citation statements)

References 41 publications

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“…The material selected were two elements Aluminum in cubic and Titanium in non-cubic system. They their structural properties were studies with the help of X-Ray Diffractometer using CuKα radiation with wavelength λ=540562 A o [16][17][18][19][20][21][22][23]. For the structural determination of cubic and noncubic systems, there are mainly two ways: a) Mathematical and 2) Analytical.…”

Section: Methodsmentioning

confidence: 99%

Structural Identification of Cubic Aluminum and Non-Cubic Titanium using X-Ray Diffractometer

Parajuli

Kaphle

Murali

et al. 2022

J. Lumbini Eng. Coll.

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The unknown crystalline samples like minerals, inorganic compounds etc. are identified mostly with the help of X-ray diffraction (XRD). More than 25 Nobel prizes have been awarded to the works based on it. The identification of the solids are essential for the research in various streams of science like Material, Environmental, Geo, Engineering and Biology. The XRD is based on Bragg’s law. The diffraction pattern obtained after passing the X-ray through interatomic slit is the main source of the structure. It was first demonstrated by Max von Laue (1912). The XRD is now attached with instrumental and computational tools. This paper focus on different steps for the indexing of an X-ray diffraction pattern, identifying the Bravais lattice, and calculating the lattice parameters of the cubic (Al) and non-cubic (Ti) system that are the starting elements we have used for the preparation of MXene. We have used the experimental and mathematical ways for the determinations of the intended structural values. The values obtained were in well agreement with the standard data.

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Section: Methodsmentioning

confidence: 99%

Structural Identification of Cubic Aluminum and Non-Cubic Titanium using X-Ray Diffractometer

Parajuli

Kaphle

Murali

et al. 2022

J. Lumbini Eng. Coll.

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“…Moreover, the size reduction produces the quantum confinement effect which we have studied in Metal Oxide Semiconductor especially ZnO and CdO The quantum confinement effects are significant in antibacterial activities. [22][23]. The smaller grain size is preferred for microstructural applications.…”

Section: Discussionmentioning

confidence: 99%

Morphological analysis of Cu substituted Ni\Zn in Ni-Zn ferrites

Parajuli

Samatha

2021

BIBECHANA

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Cu substituted Ni in Ni0.5-xCuxZn0.5Fe2O4 (x = 0, 0.05, 0.1, 0.15 and 0.2) samples and Cu substituted Zn in Ni0.5Zn0.5−xCuxFe2O4 (x = 0, 0.05, 0.1, 0.15 and 0.2) is synthesized using the sol-gel auto-combustion process. Recently, we have carried out their structural analysis using XRD and FTIR and found a cubic spinel structure. In this paper, we have studied their morphological and compositional structure with the help of a Scanning Electron Microscope (SEM) attached with an Energy Dispersive Spectrometer (EDS). The comparative study shows that the grain size of Cu substituted Ni is greater than Cu substituted Zn in Ni-Zn ferrite. These smaller grain-sized ferrites are preferred for many microstructural applications. Depending on the available magnetic field, sintering temperature, and atmosphere, they can have different nucleation, and hence their application mode is different. They can have a critical concentration that can tune their properties. The EDS attached with the SEM confirmed the proper composition of samples. BIBECHANA 18 (2) (2020) 80-86

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“…CdO QDs and CdSe QDs were synthesized according to former reports. 61,62 The synthesis of CdO/PtNi and CdSe/PtNi was similar to that of CdS/PtNi by just substituting CdS QDs with CdO QDs and CdSe QDs with the same concentration (5 mM), respectively. Preparation of PtNi-Sublimed S and PtNi-Organic S. PtNisublimed S was synthesized by first grinding the PtNi alloy powder with 3 mg of sublimed S and then calcinating the mixed powders at 200 °C (5 °C min −1 ) under flowing Ar gas for 4 h. PtNi-organic S was synthesized by dispersing 30 mg of PtNi powder into a 50 mL mixture with 10 mL of absolute ethanol and 40 mL of deionized water.…”

Section: Methodsmentioning

confidence: 99%

“…Briefly, 30 mg of a powder of PtNi alloy was well-dispersed in deionized water (30 mL) by ultrasonic treatment for 15 min, and then, a CdS QDs suspension (5 mM) was added dropwise at 25 °C and continuously mixed for 12 h. Eventually, the product was washed four times with a mixture solution of absolute ethanol and n -hexane, respectively, and dried in a 60 °C oven for 12 h. CdS/PtNi with different content of CdS QDs of 0.8, 1.0, 1.4, 2.2, 3.7, and 10.8 wt % were synthesized via adjusting the volume for CdS QDs of 0.05, 0.1, 0.3, 0.5, 1.0, and 3.0 mL, respectively. CdO QDs and CdSe QDs were synthesized according to former reports. , The synthesis of CdO/PtNi and CdSe/PtNi was similar to that of CdS/PtNi by just substituting CdS QDs with CdO QDs and CdSe QDs with the same concentration (5 mM), respectively.…”

Section: Methodsmentioning

confidence: 99%

Interfacial Sulfur-Sensitization of PtNi Nanoalloy for Efficient Electrocatalytic Hydrogen Production in Alkaline Simulated Seawater

Yu,

Xiao,

Chen

et al. 2023

Chem. Mater.

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Optimization of the electronic structure and surface physicochemical properties of PtNi nanoalloys by incorporation of sulfur (S) is an effective strategy for improving the efficiency of the electrocatalytic hydrogen evolution reaction (HER). However, few studies have been carried out to assess the seawater electrocatalytic performance of PtNi by incorporation of interfacial S from CdS nanocrystals. In this study, a simple method is developed to prepare CdS/PtNi, composed of a PtNi alloy supported with CdS quantum dots (QDs). Experimental data demonstrate that interfacial S-sensitization enhances the electron density of PtNi nanoalloy in CdS/PtNi. Therefore, CdS/PtNi exhibits superior performance toward HER in seawater. Specifically, CdS/PtNi displays a low overpotential of 22 mV at a current density of 10 mA cm–2, a higher specific activity of 24.7 mA cm–2 at −0.07 V, and superior durability in seawater, all of which metrics exceed those of commercial Pt/C. Theoretical calculations provide additional evidence that interfacial S-sensitization of PtNi alloy raises electron densities, lowers the d-band center, facilitates water molecule adsorption, resistances to Cl–, and reduces the hydrogen adsorption Gibbs free energy of PtNi alloy. This study provides new opportunities for the design of efficient and stable electrocatalysts for large-scale production of hydrogen from seawater.

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Structural, optical and luminescence properties of pure, Fe-doped and glucose-capped CdO Semiconductor nanoparticles for their Antibacterial activity

Cited by 11 publications

References 41 publications

Structural Identification of Cubic Aluminum and Non-Cubic Titanium using X-Ray Diffractometer

Structural Identification of Cubic Aluminum and Non-Cubic Titanium using X-Ray Diffractometer

Morphological analysis of Cu substituted Ni\Zn in Ni-Zn ferrites

Interfacial Sulfur-Sensitization of PtNi Nanoalloy for Efficient Electrocatalytic Hydrogen Production in Alkaline Simulated Seawater

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