Iron selenide nanorods for light-activated anticancer and catalytic applications

Mohan, Tarun; Kumar, Jitender; Roy, Indrajit

doi:10.1039/d2nj05094c

Cited by 4 publications

(2 citation statements)

References 51 publications

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“…It is evident that samples treated with higher MgCl 2 concentrations (AAO/C/Mg-50, for example) demonstrate a more pronounced increase in relative intensity over time, indicating a potentially higher CO 2 capture efficiency compared to those with lower MgCl 2 concentrations (AAO/C/Mg-10). Based on the literature, the k constant was computed [ 53 ]. The rate constant ‘k’ for CO 2 capture was meticulously computed, revealing a notable dependence on the magnesium content within the samples, as detailed in Table 1 .…”

Section: Resultsmentioning

confidence: 99%

Bryophyte-Bioinspired Nanoporous AAO/C/MgO Composite for Enhanced CO2 Capture: The Role of MgO

Cortés-Valadez,

Baños-López,

Hernández-Rodríguez

et al. 2024

Nanomaterials

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A composite material composed of anodized aluminum oxide (AAO), carbon (C), and magnesium oxide (MgO) was developed for CO2 capture applications. Inspired by the bryophyte organism, the AAO/C/MgO composite mirrors two primary features of these species—(1) morphological characteristics and (2) elemental composition—specifically carbon, oxygen, and magnesium. The synthesis process involved two sequential steps: electroanodization of aluminum foil followed by a hydrothermal method using a mixture of glucose and magnesium chloride (MgCl2). The concentration of MgCl2 was systematically varied as the sole experimental variable across five levels—1 mM, 2 mM, 3 mM, 4 mM, and 5 mM—to investigate the impact of MgO formation on the samples’ chemical and physical properties, and consequently, their CO2 capture efficiency. Thus, scanning electron microscopy analysis revealed the AAO substrate’s porous structure, with pore diameters measuring 250 ± 30 nm. The growth of MgO on the AAO substrate resulted in spherical structures, whose diameter expanded from 15 nm ± 3 nm to 1000 nm ± 250 nm with increasing MgCl2 concentration from the minor to major concentrations explored, respectively. X-ray photoelectron spectroscopy (XPS) analysis indicated that carbon serves as a linking agent between AAO and MgO within the composite. Notably, the composite synthesized with a 4 mM MgCl2 concentration exhibited the highest CO2 capture efficiency, as determined by UV-Vis absorbance studies using a sodium carbonate solution as the CO2 source. This efficiency was quantified with a ‘k’ constant of 0.10531, significantly higher than those of other studied samples. The superior performance of the 4 mM MgCl2 sample in CO2 capture is likely due to the optimal density of MgO structures formed on the sample’s surface, enhancing its adsorptive capabilities as suggested by the XPS results.

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Section: Resultsmentioning

confidence: 99%

Bryophyte-Bioinspired Nanoporous AAO/C/MgO Composite for Enhanced CO2 Capture: The Role of MgO

Cortés-Valadez,

Baños-López,

Hernández-Rodríguez

et al. 2024

Nanomaterials

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“…These thin films exhibit unique physical and electronic properties that make them highly desirable for numerous applications. [1][2][3] One of the key areas where iron selenide thin films are extensively studied is in the field of superconductivity. Iron selenide has been found to exhibit high-temperature superconductivity, which is of great interest for developing efficient and practical superconducting materials for energy transmission and storage applications.…”

Section: Introductionmentioning

confidence: 99%

Iron Selenide Nanowire Bundles for Microwave Communication Technology

Qasrawi,

Toubasi

2023

Physica Status Solidi (a)

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Herein stacked layers of FeSe2 deposited onto ytterbium substrates using the thermal evaporation technique under a vacuum pressure of 10‐5 mbar are observed to form nanowire bundles (NB). Structural investigations on these NBs have shown the preferred growth of orthorhombic FeSe2 in addition to hexagonal ytterbium selenide as a minor phase in the structure of FeSe2. Impedance spectroscopy analyses conducted in the frequency domain of 0.01‐1.80 GHz shown that FeSe2 stacks can exhibit a negative capacitance effect and band stop filter characteristics. For these band stop filters, the refection coefficient (S11), the voltage standing wave ratios (VSWR) and the return loss (Lr) spectra displayed optimum values at a notch frequency of 0.87 GHz. In addition, computational analysis using Lorentz Oscillator (LO) Model has shown that the negativity of the capacitance is dominated by two oscillators centered at 0.08 GHz and 1.25 GHz. On the other hand, the insertion of aluminum nanosheets between the stacked layers of FeSe2 has been observed to decrease the negativity of the capacitance, increase the values of S11 and Lr and bring the VSWR closer to ideality. FeSe2 nanowire bundles resulting from FeSe2 stacks comprising Al nanosheets are considered suitable for microwave communication technology.This article is protected by copyright. All rights reserved.

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Peroxidase like activity of Prussian blue nanoparticles and visible light mediated catalytic degradation of methylene blue dye

Kumar,

Justa,

Jaswal

et al. 2024

Chemical Physics Impact

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Iron selenide nanorods for light-activated anticancer and catalytic applications

Abstract: Photoresponsive nanoparticles are capable of converting the light energy into heat and generate reactive oxygen species (ROS) to exert a variety of applications. In this study, we report a simple...

Cited by 4 publications

References 51 publications

Bryophyte-Bioinspired Nanoporous AAO/C/MgO Composite for Enhanced CO2 Capture: The Role of MgO

Bryophyte-Bioinspired Nanoporous AAO/C/MgO Composite for Enhanced CO2 Capture: The Role of MgO

Iron Selenide Nanowire Bundles for Microwave Communication Technology

Peroxidase like activity of Prussian blue nanoparticles and visible light mediated catalytic degradation of methylene blue dye

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