Growth, structural, optical, thermal, mechanical and electrical properties of potassium chromium sulphate single crystals

Thilaga, K.; Selvarajan, P.; Kader, S.M. Abdul

doi:10.1007/s10854-021-07592-w

Cited by 5 publications

(3 citation statements)

References 21 publications

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“…The results suggest that the grown KHS crystals have considerable mechanical strength. Further, the high value of the stiffness constant corroborates that the binding forces between the ions and atoms of KHS are remarkably strong [10].…”

Section: Microhardness Studiesmentioning

confidence: 54%

Growth, Surface Morphology and Mechanical Properties of Potassium Hydrogen Sulphate Single Crystals for Antimicrobial and Third-Order NLO Applications

Thilaga,

Selvarajan,

Kader

2023

Phys. Chem. Sol. State

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A good quality single crystal of potassium hydrogen sulphate (KHS) has been grown and subjected to characterization techniques including single crystal X-ray diffraction, scanning electron microscope, hardness test, Z-scan and antimicrobial test. The single crystal X-ray diffraction study discloses the orthorhombic system of the KHS crystals. The SEM analysis shows the formation of tiny hillocks in the KHS crystal. Vickers microhardness test was utilized for testing the mechanical hardness of the grown KHS crystals. Moreover, the mechanical parameters such as elastic stiffness constant and yield strength were also determined. The nonlinear optical properties such as nonlinear susceptibility, nonlinear refractive index, and nonlinear absorption coefficient were estimated by Z scan analysis. In addition, antimicrobial activity was performed against certain pathogens for medication applications.

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Section: Microhardness Studiesmentioning

confidence: 54%

Growth, Surface Morphology and Mechanical Properties of Potassium Hydrogen Sulphate Single Crystals for Antimicrobial and Third-Order NLO Applications

Thilaga,

Selvarajan,

Kader

2023

Phys. Chem. Sol. State

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“…All the synthesized samples exhibit maximum absorbance around 400 nm. The blue shift in the absorption spectrum is mainly attributed to the confinement of charge carriers on the surface of the synthesized nano oxides[20,21]. All the synthesized samples show an increase in the optical parameters with increase in wavelength showing a peak at the absorption wavelength.…”

mentioning

confidence: 88%

Investigations on Chemically Synthesized Pure and Doped Manganese Dioxide Nanoparticles for Dye Removal and Photocatalytic Applications

Chellappan,

Thangaraj,

Muthukurumban

et al. 2024

J Fluoresc

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Pure and Mg 2+ , Ni 2+ , Cd 2+ doped MnO2 nanoparticles were synthesized by chemical coprecipitation method. These samples were characterised by PXRD, SEM, EDX, FTIR, UV-Vis-NIR, PL, Antibacterial, Cyclic Voltammetry, dye degradation and Photocatalytic studies. From the powder XRD studies, the crystallite size of the particle was calculated using Scherer formula and found that the synthesized nanoparticles were in the range from 10 to 12 nm. The morphology of all the synthesized samples was viewed from SEM micrograph. The composition and purity of the samples were identified from EDX studies. In FTIR spectra metal-oxygen stretching and bending modes of vibrations were observed. From the absorption spectra of UV-Vis optical analysis values of absorption coefficient, extinction coefficient, refractive index, real and imaginary part of optical dielectric constant and optical conductivity were compared. The energy band gap obtained from tauc's plot shows semiconducting nature of the pure and doped samples. Investigations on photoluminecsence spectrum reveals blue shift in wavelength for doped nanooxides compared to pure MnO2. Antimicrobial activity of synthesised samples against gram positive and gram negative bacteria was determined. The obtained results reveal very high bacterial resistance in Cd 2+ doped MnO2 nanoparticles. The specific capacitance values were determined from Cyclic Voltammetry studies. Using the batch method of dye removing technique the percentage of malachite green dye removal was calculated. Also the photocatalytic efficiency of all the synthesized MnO2 samples in removing malachite green dye was studied by exposing to sunlight for different dosage and contact time.

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mentioning

confidence: 88%

Investigations on chemically synthesized pure and doped manganese dioxide nanoparticles for dye removal and photocatalytic applications

Chellappan,

Thangaraj,

et al. 2023

Preprint

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Pure and Mg2+, Ni2+, Cd2+ doped MnO2 nanoparticles were synthesized by chemical co-precipitation method. These samples were characterised by PXRD, SEM, EDX, FTIR, UV-Vis-NIR, PL, Antibacterial, Cyclic Voltammetry, dye degradation and Photocatalytic studies. From the powder XRD studies, the crystallite size of the particle was calculated using Scherer formula and found that the synthesized nanoparticles were in the range from 10 to 12 nm. The morphology of all the synthesized samples was viewed from SEM micrograph. The composition and purity of the samples were identified from EDX studies. In FTIR spectra metal-oxygen stretching and bending modes of vibrations were observed. From the absorption spectra of UV-Vis optical analysis values of absorption coefficient, extinction coefficient, refractive index, real and imaginary part of optical dielectric constant and optical conductivity were compared. The energy band gap obtained from tauc’s plot shows semiconducting nature of the pure and doped samples. Investigations on photoluminecsence spectrum reveals blue shift in wavelength for doped nanooxides compared to pure MnO2. Antimicrobial activity of synthesised samples against gram positive and gram negative bacteria was determined. The obtained results reveal very high bacterial resistance in Cd2+ doped MnO2 nanoparticles. The specific capacitance values were determined from Cyclic Voltammetry studies. Using the batch method of dye removing technique the percentage of malachite green dye removal was calculated. Also the photocatalytic efficiency of all the synthesized MnO2 samples in removing malachite green dye was studied by exposing to sunlight for different dosage and contact time.

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Growth, structural, optical, thermal, mechanical and electrical properties of potassium chromium sulphate single crystals

Cited by 5 publications

References 21 publications

Growth, Surface Morphology and Mechanical Properties of Potassium Hydrogen Sulphate Single Crystals for Antimicrobial and Third-Order NLO Applications

Growth, Surface Morphology and Mechanical Properties of Potassium Hydrogen Sulphate Single Crystals for Antimicrobial and Third-Order NLO Applications

Investigations on Chemically Synthesized Pure and Doped Manganese Dioxide Nanoparticles for Dye Removal and Photocatalytic Applications

Investigations on chemically synthesized pure and doped manganese dioxide nanoparticles for dye removal and photocatalytic applications

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