Recent progress in γ-Fe2O3-based catalysts: An overview of the synthesis and applications in environmental remediation

Zhou, Yuzhuo; Yang, Xin; Gong, Chen; Zhu, Fei; Wang, Jian; Qi, Yongfeng; Huang, Kai; Wu, Jiang; Chen, Ran; Liu, Yi

doi:10.1016/j.cej.2023.146198

Cited by 16 publications

(1 citation statement)

References 263 publications

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“…It is necessary to comprehend how X-rays interact with objects in order to create suitable shields. In essence, X-rays are a class of electromagnetic radiation with short wavelengths and high energy [1][2][3][4][5][6][7]. When a medium is exposed to a beam of these rays, secondary electrons are created, which transfer the majority of the incident photon's energy to the medium's substance and ionize its atoms [8][9][10].…”

Section: Introductionmentioning

confidence: 99%

Nanocomposite-Supported Polymeric Composites Prepared with Different Deposition Bases: Characterization and Application in X-ray Shielding

Fayyadh,

Ben Ahmed

2024

Physics

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This study deals with the preparation of magnetite nanoparticles (NPs) via a coprecipitation method using several precipitation bases: binary precipitator (NH4OH), mono precipitator (NaOH), and weak precipitator (Ca(OH)2). The prepared magnetite NPs were identified using X-ray diffraction (XRD), transmission electron microscopy (TEM), scanning electron microscopy (SEM), energy-dispersive X-ray (EDX) analysis, surface area analysis, magnetic properties, Fourier-transformed infrared spectra (FT-IR), and ultra-violet UV–visible spectra. As a result, the phases of the produced magnetite NPs were unaffected by the use of various bases, but their crystallite sizes were affected. It was found that the binary base provided the smallest crystallite size, the mono base provided an average size, and the weak base provided the largest crystallite size. The UV–visible absorption spectroscopy investigation revealed that the absorption and the energy gap rose with a reduction in nanoparticle size. The prepared magnetite NPs were used to manufacture polymeric-based nanocomposites employed as protective shields from low-energy X-rays that are light in weight. These samples were identified using XRD, atomic force microscopy (AFM), and FT-IR spectroscopy. The crystallite size was slightly larger than it was in the case of magnetite NPs. This is consistent with the results of AFM. The interference between the two phases was observed in the results of the FT-IR spectra. The effects of the size of the magnetite NPs on the attenuation tests, linear attenuation coefficient, mass attenuation coefficient, half-value layer, and mean free path were investigated. The results showed that the efficiency of using manufactured shields increases with the decrease in the NPs size of the magnetite used as a reinforcement phase for a range of low operating voltages.

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Section: Introductionmentioning

confidence: 99%

Nanocomposite-Supported Polymeric Composites Prepared with Different Deposition Bases: Characterization and Application in X-ray Shielding

Fayyadh,

Ben Ahmed

2024

Physics

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Lattice Defects and Electronic Modulation of Flower‐Like Zn₃In₂S₆ Promote Photocatalytic Degradation of Multiple Antibiotics

Chen,

Wang,

Shen

et al. 2024

Small Methods

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Photocatalysis is an effective technique to remove antibiotic residues from aquatic environments. Typical metal sulfides like Zn3In2S6 have been applied to a wide range of photocatalytic applications. However, there are currently no readily accessible methods to increase its antibiotic‐degrading activity. Here, a facile hydrothermal approach is developed for the preparation of flower‐like Zn3In2S6 with tunable sulfur lattice defects. Photogenerated carriers can be separated and transferred more easily when there is an adequate amount of lattice defects. Moreover, lattice defect‐induced electronic modulation enhances light utilization and adsorption properties. The modified Zn3In2S6 demonstrates outstanding photocatalytic degradation activity for levofloxacin, ofloxacin, and tetracycline. This work sheds light on exploring metal sulfides with sulfur lattice defects for enhancing photocatalytic activity.

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Enhancement of microwave absorption ability of Nd0.67Sr0.33Mn1-xNix/2Tix/2O3 (x = 0, 0.03, and 0.06)

Saptari,

Syarifuddin,

Tjahjono

et al. 2024

emergent mater.

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Recent progress in γ-Fe2O3-based catalysts: An overview of the synthesis and applications in environmental remediation

Cited by 16 publications

References 263 publications

Nanocomposite-Supported Polymeric Composites Prepared with Different Deposition Bases: Characterization and Application in X-ray Shielding

Nanocomposite-Supported Polymeric Composites Prepared with Different Deposition Bases: Characterization and Application in X-ray Shielding

Lattice Defects and Electronic Modulation of Flower‐Like Zn₃In₂S₆ Promote Photocatalytic Degradation of Multiple Antibiotics

Enhancement of microwave absorption ability of Nd0.67Sr0.33Mn1-xNix/2Tix/2O3 (x = 0, 0.03, and 0.06)

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Recent progress in γ-Fe2O3-based catalysts: An overview of the synthesis and applications in environmental remediation

Cited by 16 publications

References 263 publications

Nanocomposite-Supported Polymeric Composites Prepared with Different Deposition Bases: Characterization and Application in X-ray Shielding

Nanocomposite-Supported Polymeric Composites Prepared with Different Deposition Bases: Characterization and Application in X-ray Shielding

Lattice Defects and Electronic Modulation of Flower‐Like Zn3In2S6 Promote Photocatalytic Degradation of Multiple Antibiotics

Enhancement of microwave absorption ability of Nd0.67Sr0.33Mn1-xNix/2Tix/2O3 (x = 0, 0.03, and 0.06)

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Lattice Defects and Electronic Modulation of Flower‐Like Zn₃In₂S₆ Promote Photocatalytic Degradation of Multiple Antibiotics