
Alexandria Engineering Journal, Год журнала: 2024, Номер 103, С. 237 - 250
Опубликована: Июнь 15, 2024
Язык: Английский
Alexandria Engineering Journal, Год журнала: 2024, Номер 103, С. 237 - 250
Опубликована: Июнь 15, 2024
Язык: Английский
Advanced Composites and Hybrid Materials, Год журнала: 2024, Номер 7(3)
Опубликована: Апрель 18, 2024
Язык: Английский
Процитировано
63Colloids and Surfaces A Physicochemical and Engineering Aspects, Год журнала: 2024, Номер 694, С. 134149 - 134149
Опубликована: Май 3, 2024
The high density, cost, and environmental pollution hinder the application of iron-based electromagnetic wave-absorbing materials. Although bio-carbon is a green lightweight dielectric material, performance still limited. This work successfully combined magnetite Fe3O4 with porous carbon derived from spinach stem using hydrothermal calcination methods. process optimizes matching constant magnetoconductivity as prepared composite resulting in significant improvement microwave absorption capacity. XRD, SEM, TEM, XPS, VSM EMW network analyzer are used to detect characterize samples. material shows excellent minimum reflection loss value -48.81 dB an efficacious bandwidth 4.73 GHz at optimal raw ratio. tests also show structure sample coercivity saturation magnetization 29.36 Oe 10.75 emu/g, respectively. test results indicate that wave due synergistic effect multiple reflection, Debye relaxation, interfacial polarization. Fe3O4-bio-carbon cheap simple prepare, it has performance. Therefore, great potential civilian military fields.
Язык: Английский
Процитировано
43Advanced Composites and Hybrid Materials, Год журнала: 2024, Номер 8(1)
Опубликована: Дек. 26, 2024
Язык: Английский
Процитировано
24Advanced Composites and Hybrid Materials, Год журнала: 2024, Номер 7(4)
Опубликована: Июль 4, 2024
Язык: Английский
Процитировано
20Colloids and Surfaces A Physicochemical and Engineering Aspects, Год журнала: 2024, Номер 700, С. 134659 - 134659
Опубликована: Июль 1, 2024
Water pollution caused by various cationic dyes is becoming more and serious. A combination of magnetic materials, conductive polymers, some strong adsorption groups expected to solve this challenge. Herein, magnetite (Fe3O4)@polypyrrole@2-acrylamido-2-methyl-1-propanesulfonic acid (Fe3O4@PPy@AMPS) fabricated as adsorbent for removing methylene blue (MB), rhodamine B (RhB), malachite green (MG), crystalline violet (CV) from aqueous solution. The investigation the factors including type, concentration, time, temperature demonstrates that Fe3O4@PPy@AMPS has superior properties adsorb four dyes. maximum capacity these separately 183.486, 215.054, 144.718 194.175 mg/g. Notably, although it goes through five cycles, composite maintains a remarkable dye removal efficiency exceeding 95 %. Kinetic analysis reveals process conforms closely pseudo-second-order kinetic model. isotherm Langmuir model, signifying monolayer Thermodynamic parameters also indicate endothermic spontaneous. Furthermore, density functional theory (DFT) simulations affirm molecular interactions between dyes, elucidating mechanism. high recyclable nature underscores its significance in addressing wastewater remediation.
Язык: Английский
Процитировано
11Advanced Composites and Hybrid Materials, Год журнала: 2024, Номер 7(4)
Опубликована: Июль 2, 2024
Язык: Английский
Процитировано
10Sustainable materials and technologies, Год журнала: 2024, Номер 41, С. e01080 - e01080
Опубликована: Авг. 9, 2024
Язык: Английский
Процитировано
10Advanced Composites and Hybrid Materials, Год журнала: 2025, Номер 8(1)
Опубликована: Янв. 2, 2025
Abstract Bi 2 WO 6 /BiOCl nanocomposites with three-dimensional core–shell structure were synthesized by a two-step hydrothermal method. The compounds characterized XRD, SEM, TEM, HR-TEM, EDX, SAED, XPS, PL, UV–Vis DRS, photoelectrochemical, and photodegradation experiments. result showed that the catalytic activity of was significantly better than BiOCl. effect amount on properties composite studied. had highest photocatalytic degradation efficiency for TNT, rate reached 90% after 180 min visible light irradiation. In process reaction 4.5 is highest, which 0.20057 −1 . After 4 cycles, TNT remained at 80%. free radical trapping experiments holes superoxide anions played major role in wastewater /BiOCl. Based results experiment, Mott-Schottky test, ultraviolet–visible diffuse reflection spectroscopy, mechanism enhancing proposed.
Язык: Английский
Процитировано
2Advanced Composites and Hybrid Materials, Год журнала: 2025, Номер 8(1)
Опубликована: Янв. 20, 2025
Язык: Английский
Процитировано
2Catalysts, Год журнала: 2025, Номер 15(2), С. 113 - 113
Опубликована: Янв. 24, 2025
This study investigates the photocatalytic degradation of tetracycline hydrochloride (TCH) using a TiO2/CdS composite nanocatalyst synthesized on flexible nickel foam via dipping–pull method. By comparing TCH by with different precursor ratios, it was found that TiO2/CdS-1.43% exhibited better performance. The X-ray diffraction (XRD) pattern retains characteristic peaks both TiO2 and CdS, indicating successful formation composite. According to analysis ultraviolet–visible spectroscopy (UV–Vis), absorption edge is approximately 530 nm. transmission electron microscopy (TEM) images show Cd S evenly, densely distributed in TiO2/CdS, further validating its synthesis. photoelectron (XPS) reveals Ti elements exist forms Cd2+ Ti4+, respectively. loading uniformity assessed super-depth microscopy. removal efficiency 10 L 20 mg/L solution achieved 53.89%, respectively, under response surface methodology—Box–Behnken design (RSM–BBD) optimal conditions (28 g catalyst, 325 rpm, pH = 9.04 within 150 min). Furthermore, five successive cycling experiments demonstrated strong stability, catalyst loss only 4.44%. Finally, free radical scavenging revealed ·O2− radicals are primary active species. highlights potential composites supported for efficient antibiotic pollutants water.
Язык: Английский
Процитировано
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