Synthesis and characterization MXene-Ferrite nanocomposites and its application for dying and shielding

Parajuli, D.; Uppugalla, Susmitha; Murali, N.; Ramakrishna, A.; Suryanarayana, B.; Samatha, K.

doi:10.1016/j.inoche.2022.110319

Cited by 28 publications

(28 citation statements)

References 161 publications

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“…The Scherer's Formula is, 𝐷 = 𝑘𝜆 𝛽𝑐𝑜𝑠𝜃 where, D = crystallites size (nm) for k = 0.9 (Scherer's constant), λ=0.15406 nm (wavelength of the x-ray sources), β=FWHM (radians) and 𝜃 = Peak position (radians). The peak position and FWHM are determined from XRD data [13,[29][30][31][32][33][34][35][36].…”

Section: Crystallites Size From Scherer's Equationmentioning

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: Crystallites Size From Scherer's Equationmentioning

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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“…This decrease becomes evident after 2 h of reaction. In addition, the intensification of the peak around 3450 cm −1 points to concrete evidence of the formation of the OH group in the sample 43,44 . However, the formation of the carboxylic group was unclear, as no CO stretch peak was observed in 1710–1780 cm −1 45 .…”

Section: Resultsmentioning

confidence: 97%

“…In addition, the intensification of the peak around 3450 cm À1 points to concrete evidence of the formation of the OH group in the sample. 43,44 However, the formation of the carboxylic group was unclear, as no C O stretch peak was observed in 1710-1780 cm À1 . 45 This same bond formed can be observed from 1680 to 1630 cm À1 .…”

Section: Reaction Time With Naoh and Acid Stepmentioning

confidence: 99%

Functionalized polyacrylonitrile particles as a promising support for the immobilization of laccase fromTrametes versicolor

Vieira

Henriques

Gurgel

et al. 2023

J of Applied Polymer Sci

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This work evaluates the potential of polyacrylonitrile particles (PAN) as support for laccase from Trametes versicolor immobilization. The slurry polymerization method forms mesoporous particles with low surface area and low maximum pore volume in desorption. The particles were chemically modified by consecutive alkaline and acid hydrolysis, followed by amination and activation with glutaraldehyde to enzyme immobilization. The laccase immobilization yield was 99.48% and 14.29% using the functionalized and non-functionalized particles, respectively. The enzyme activity was measured by the oxidation of 2,2 0 -azino-bis (3-ethylbenzthiazoline-6-sulfonic acid) at different pHs and temperatures. The PAN/laccase derivative was hyperactivated at pH 3, up to 3 times higher than the free enzyme, and performed better at 50 C after 6 h of incubation, with relative activity up to 33% higher than the free enzyme. However, both enzymes denatured when the conditions reached pH 8 and 70 C. The PAN/laccase retained 89% of the initial activity after 30 days of storage at 5 C. It was possible to reuse the enzymatic derivative for 5 cycles, with up to 50% residual activity, under 50 C and pH 3. These results show the potential of this new support for laccase immobilization and further applications of industrial interest.

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“…While the CA2 specimen shows resistivity values per square of 42.2 ± 0.3 Ω/□ which indicates a conductive behavior once the current in the circuit is applied. For those samples, the temperature was not a consideration, and samples were measured at room temperature but Parajuli et al 28 explain that the resistivity decreases with temperature, then other experiments at different temperature ranges could be performed.…”

Section: Resultsmentioning

confidence: 99%

Development of a facile aerogel‐based ion‐selective electrode using cellulose and carbon nanotubes as transducer materials for potentiometric application

Gallegos-Cerda

Chanona-Pérez

Hernández‐Varela

et al. 2023

J of Applied Polymer Sci

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Facile, lightweight, and sustainable aerogels have been a growing interest in their applications as support matrixes in the current environmental and energy challenges. In this study, a cellulose aerogel (CA) is fabricated using a homogeneous dispersion of cellulose fibers in an alkali‐urea aqueous solution and a carbon nanotube ink (CNT‐ink) to increase its electrical and conductive behavior in a potentiometric analysis. The physicochemical and morphological properties of the resultant composite aerogels (CA, CA1, and CA2) are investigated by thermal, water resistance, mechanical, FTIR, and SEM analysis. The prepared material exhibits a structured solid network that is visualized through SEM in which fibers are functionalized with CNTs. The results from compressive tests reveal that CA2 has excellent mechanical properties. A saturated CA with CNT‐ink can turn on a white LED and potentiometric measurements by preparing an aerogel‐based ion‐selective electrode (CA2 ‐ ISE) with a potassium ion‐selective membrane (K+ − ISM) reveal good sensitivity at room temperature for the detection in a specific electrolyte solution.

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Synthesis and characterization MXene-Ferrite nanocomposites and its application for dying and shielding

Cited by 28 publications

References 161 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

Functionalized polyacrylonitrile particles as a promising support for the immobilization of laccase fromTrametes versicolor

Development of a facile aerogel‐based ion‐selective electrode using cellulose and carbon nanotubes as transducer materials for potentiometric application

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