Opto-electric and physio-chemical changes in oxygen ion irradiated natural Vermiculite mineral

Kaur, Sukhnandan; Singh, Surinder; Singh, Lakhwant

doi:10.1016/j.apradiso.2019.03.004

Cited by 5 publications

(3 citation statements)

References 20 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Further, two bands at 680 and 1003 cm −1 were associated with Si-O-M (M=Al, Fe, Mg) bending vibrations and Si-O stretching vibrations, respectively [42,43]. An absorption band at 1642 cm −1 was attributed to -OH bending vibrations due to water molecules hydration [44]. The broad band at 3428 cm −1 and a small band at 3720 cm −1 were attributed to stretching vibrations of -OH related to water molecules in the interlayer and Si-OH, respectively [32], and these peaks were associated with VER structural characteristics.…”

Section: Spectroscopymentioning

confidence: 95%

Enhanced Single and Simultaneous As(III) Adsorption in Pearl River Delta Water by Hexylamine Functionalized Vermiculite

Ahmed

et al. 2021

Water

View full text Add to dashboard Cite

Enhanced As(III) removal (>99.7) was achieved by a novel organoclay (HEX-VER) adsorbent in Pearl River Delta water. Single and simultaneous As(III) removal in the presence of Cd(II) and/or Pb(II) by batch adsorption tests was analyzed. Spectroscopic, spectrometric, microscopic, and potentiometric techniques were used for characterization of the adsorbents. The parameters affecting As(III) adsorption, including pH, kinetic, isotherm, thermodynamic, and co-existing ions (Cl−, F−, NO3−, CO32−, SO42−, Ca2+ and Mg2+) were also investigated. The results showed that HEX-VER owned different morphology and larger average pore diameter after functionalization, resulting in an improvement of As (III) adsorption capacity. Further analysis confirmed that adsorption was of the monomolecular layer, well-described by the Langmuir isotherm model. The dominant mechanisms for As(III) removal were ion-exchange and complexation. Moreover, HEX-VER was regenerated for five consecutive cycles, and the removal ratio was ≈ 92%, showing its great regeneration potential. These findings suggest that the proposed inexpensive adsorbent has potential for practical applications of As(III) removal from river water.

show abstract

Section: Spectroscopymentioning

confidence: 95%

Enhanced Single and Simultaneous As(III) Adsorption in Pearl River Delta Water by Hexylamine Functionalized Vermiculite

Ahmed

et al. 2021

Water

View full text Add to dashboard Cite

show abstract

“…Thin sheets of a natural vermiculite were irradiated at room temperature with 80 MeV O6+ ions at varying fluence with a 15 UD Pelltron accelerator in the Material Science Beam line at the Inter University Accelerator Centre, New Delhi, India; the influence of irradiation on optical, dielectric, structural, chemical and thermoluminescence (TL) properties was studied [157] and a decrease was found in mean crystallite size and an increase in micro-strain with increasing ion fluence.…”

Section: Muscovite Illite Vermiculitementioning

confidence: 99%

Applications of X-ray Powder Diffraction Microstructural Analysis in Applied Clay Mineralogy

Bastida,

Pardo-Ibañez

2024

Minerals

View full text Add to dashboard Cite

Clay minerals and sheet silicates are the main constituents of lutites and clays. These materials are relevant in earth science research as well as in economic geology because of the great variety of applications, based on their particular features at different levels of aggregation in mineral assemblages and on the microstructural and structural characteristics of the mineral constituents frequently characterized by micro- and nanocrystalline appearance. Thus, X-ray diffraction is a main tool for fundamental and applied research of these materials. The present review concerns their microstructural research from powder X-ray diffraction data.

show abstract

“…The Fourier Transform Infrared (FTIR) reading technique has been used to measure the sample surface absorbance in evaluating plastic detectors. The FTIR has been applied recently in several areas [15][16][17][18][19][20].…”

Section: Introductionmentioning

confidence: 99%

Plastic bottle caps as radiation detectors for high gamma radiation doses

Oliveira¹,

Nascimento²,

Antonio³

et al. 2022

Braz. J. Rad. Sci.

View full text Add to dashboard Cite

Dosimetric evaluation is indicated for material characterization seeking to identify possible applications; still, proper preprocessing techniques are critical features of this process. This work aimed to determine the linearity response of plastic samples irradiated with gamma rays using the Fourier Transform Infrared (FTIR) measurements. The plastic samples were analyzed using Derivatives and Principal Component Analysis (PCA) methods. They applied linear and Principal Component Regression (PCR) methods to obtain linearity. The methods obtained good results for linearity and also showed the evolution of each technique. In conclusion, the results indicate that the applied methods can be useful in radiation physics and for plastic samples as interesting potential radiation detectors.

show abstract

Opto-electric and physio-chemical changes in oxygen ion irradiated natural Vermiculite mineral

Cited by 5 publications

References 20 publications

Enhanced Single and Simultaneous As(III) Adsorption in Pearl River Delta Water by Hexylamine Functionalized Vermiculite

Enhanced Single and Simultaneous As(III) Adsorption in Pearl River Delta Water by Hexylamine Functionalized Vermiculite

Applications of X-ray Powder Diffraction Microstructural Analysis in Applied Clay Mineralogy

Plastic bottle caps as radiation detectors for high gamma radiation doses

Contact Info

Product

Resources

About