Microstructure, phase, magnetic properties, and electromagnetic wave absorption of graphene oxide – Ni0.7Zn0.3Fe2O4 – Al2O3 aerogel

Gordani, Gholam Reza; Loghman-Estarki, Mohammad Reza; Danesh, Mostafa; Kiani, Esmail; Tavoosi, M.

doi:10.1016/j.ceramint.2021.10.081

Cited by 13 publications

(1 citation statement)

References 14 publications

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“…GO is an excellent option for Al 2 O 3 -based catalysts because of the surface functionality of hydroxyl/carboxyl groups, and its ability for charge-separation properties results in excellent hydrophilicity and negative charge (Sharma et al, 2020). GO has desirable catalytic properties to improve CA and can eliminate organic dyes through the adsorption phenomenon due to its more excellent adsorption surface (Gordani et al, 2022).…”

Section: Introductionmentioning

confidence: 99%

Dye degradation, antimicrobial activity, and molecular docking analysis of carbon sphere and graphene oxide–doped aluminum oxide

Arshad

Imran

Haider

et al. 2023

Front. Environ. Sci.

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In this research work, pristine and various concentrations (2.4 wt%) of graphene oxide (GO)/carbon sphere (CS)–doped Al2O3 nanostructures (NSs) were synthesized with the chemical sol–gel method. Aluminum oxide (Al2O3) exhibits quick recombination of electrons and holes with a low specific surface to limit catalytic and antibacterial activities. Al2O3 doped with CS is good in wastewater treatment and reduces the size of NSs. The incorporation of graphene oxide (GO) into Al2O3 at different concentrations (2 and 4 wt%) enhances both the structural and chemical stabilities of the resulting material while concurrently decreasing the number of charge carriers and reducing the band gap energy. This modified Al2O3-GO composite exhibits promising potential for utilization in dye degradation and antibacterial activity. A series of characterizations were performed to investigate the structural, morphological, and optical properties. The NSs exhibited excellent catalytic activity (CA) against rhodamine B (RhB) dye in acidic, basic, and neutral media. The antimicrobial activity was tested against Escherichia coli. Pairs of electrons and holes are the primary building blocks for the production of reactive oxygen species (ROS), which causes bacteria to die. The significant inhibition zones against E. coli were calculated to be approximately 5.65 mm when compared to ciprofloxacin. Moreover, in silico investigations have revealed the possible inhibitory impact of produced nanomaterials (GO/CS-doped Al2O3) on DNA gyrase and FabI enzymes of fatty acid biosynthesis.

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Section: Introductionmentioning

confidence: 99%

Dye degradation, antimicrobial activity, and molecular docking analysis of carbon sphere and graphene oxide–doped aluminum oxide

Arshad

Imran

Haider

et al. 2023

Front. Environ. Sci.

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Multifunctional Shape Memory Composites for Joule Heating, Self‐Healing, and Highly Efficient Microwave Absorption

Liu

Wei

et al. 2022

Adv Funct Materials

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Traditional microwaves absorption materials (MAMs) are applied in the form of coatings, generally inflexible, with high production costs and poor adaptability to applications in different locations. The diversification of application scenarios requires materials with multifunctionalities, but it is extremely challenging to integrate multifunctionalities within single material at present. Herein, a multifunctional CoNC@GN/PCL/TPU MAMs is synthesized. The CoNC@GN nano‐micro absorber has high‐efficiency microwave absorption ability. The electromagnetic microwave absorption performance is ultra‐light (4 wt.%), ultra‐thin (2.3 mm), and broadband (6.21 GHz), which is better than similar MAMs. Additionally, the samples have highly efficient electro‐thermal conversion properties, enabling controlled electrical heating performance and excellent self‐healing properties. More remarkably, the sample has an electrically driven shape memory effect that allows the material to target the absorption of multi‐angle incident electromagnetic waves. Therefore, CoNC@GN/PCL/TPU absorbers are the key to truly opening up opportunities for flexible, shape memory, and multifunctional absorbers in frontier applications such as wearables, deformable robots, and chip protection.

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Biomass-derived porous carbon-incorporated MnO2 composites thin films for asymmetric supercapacitor: synthesis and electrochemical performance

Ganesh

Sivakumar²,

Sankar³

2022

J Mater Sci: Mater Electron

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Microstructure, phase, magnetic properties, and electromagnetic wave absorption of graphene oxide – Ni0.7Zn0.3Fe2O4 – Al2O3 aerogel

Cited by 13 publications

References 14 publications

Dye degradation, antimicrobial activity, and molecular docking analysis of carbon sphere and graphene oxide–doped aluminum oxide

Dye degradation, antimicrobial activity, and molecular docking analysis of carbon sphere and graphene oxide–doped aluminum oxide

Multifunctional Shape Memory Composites for Joule Heating, Self‐Healing, and Highly Efficient Microwave Absorption

Biomass-derived porous carbon-incorporated MnO2 composites thin films for asymmetric supercapacitor: synthesis and electrochemical performance

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