Green Synthesis of Fe3O4/RGO Nanocomposite with …
Herein, we report a novel single-step hydrothermal synthesis of a photocatalytically stable and magnetically separable g-Fe3O4/RGO nanocomposite in the presence of Averrhoa carambola leaf extract as a natural surfactant for multipurpose water purification application. The Averrhoa carambola leaf extract played a major role in the …
Atomic-scale structure and properties of highly stable antiphase
The complex and intriguing properties of the ferrimagnetic half metal magnetite (Fe3O4) are of continuing fundamental interest as well as being important for practical applications in spintronics ...
In-Situ Growth and Graphitization Synthesis of Porous Fe3O4…
Biomass waste has emerged as a novel sustainable and renewable material for fabricating functional materials because of the lightweight and easy manufacturing. Herein, we synthesize a porous Fe3O4/carbon fiber (Fe3O4/CF) composites derived from bagasse waste by in-situ growth and a graphitization process. The Fe3O4 nanocrystals …
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Insight into the Enhanced Photo-Fenton …
The sluggish charge-transfer kinetics of Fe(II) regeneration, unsatisfactory utilization of H2O2, and low reaction efficiency remain largely unresolved in Fe3O4 …
Synthesis of a hierarchically structured Fe3O4–PEI …
In this work, a novel, highly sensitive and cost-effective sensing electrode was fabricated for the sensitive detection of bisphenol A in milk and water samples. An eco-catalyst Fe3O4–PEI nanocomposite was successfully …
Magnetic nanoparticles of Fe3O4 enhance docetaxel …
Magnetic nanoparticles of Fe3O4 (MgNPs-Fe3O4) can enhance the delivery and efficacy of anticancer drugs. We investigated the effects of MgNPs-Fe3O4 or DTX alone, and in …
Fe3O4@Pt nanoparticles with enhanced peroxidase-like
3. O. 4. @Pt nanoparticles with enhanced peroxidase-like catalytic activity. Platinum modified Fe 3 O 4 nanoparticles were prepared by a simple method. The activity of Fe 3 O 4 @Pt NPs as peroxidase mimetics was evaluated in the TMB–H 2 O 2 system. Fe 3 O 4 @Pt NPs exhibited a larger Kcat value than that of Fe 3 O 4 NPs, suggesting a …
Electrochemical-enhanced Fe3O4/biochar activates …
Therefore, the nano-Fe3O4/BC composite is a promising PMS activator, which can realize the rapid oxidative degradation of OTC. Discover the world's research 25+ million members
Synthesis of Fe3O4 Nanoparticles and their Magnetic …
China ) Abstract Fe3O4 magnetic nanoparticles (MNPs) were synthesized by a co-precipitation method using sodium citrate and oleic acid as modifiers. Phase composition and microstructure analysis indicate that the sodium citrate and oleic acid have been successfully grafted onto the surface of Fe3O4 MNPs. The magnetic behaviors …
Fe3O4 loaded on ball milling biochar enhanced …
Fe3O4 loaded on ball milling biochar enhanced bisphenol a removal by activating persulfate: Performance and activating mechanism - ScienceDirect Journal of …
Sintesis dan Karakterisasi Nanopartikel Magnetit (Fe3O4) …
Sintesis nanopartikel magnetit (Fe3O4) Dengan Template Silika (SiO2) dan karakterisasi sifat kemagnetannya. Indonesian Journal of Applied Physics, 5(1), 23-30. Prasetyowati, R., Ariswan, Warsono, & Dewi, N. (2019). Synthesis and characterization of magnetite nanoparticles (Fe3O4) based on iron sand from Glagah Kulon Progo Yogyakarta via ...
Enhanced visible-light photocatalytic performance of Fe3O4 …
Iron oxide (Fe3O4) pyramid nanostructures were synthesized via a co-precipitation method, without using surfactants or template, for photocatalytic and photoelectrocatalytic activities. The as-made Fe3O4 was characterized via X-ray diffraction (XRD), scanning electron microscopy (SEM), energy-dispersive X-ray spectroscopy …
Novel Magnetic Fe3O4/α-FeOOH Nanocomposites and …
Magnetic Fe3O4/α-FeOOH heterojunction nanocomposites (denoted as Fe-NCs) have been synthesized by a fast one-pot hydrothermal method. The obtained Fe-NCs contain rich micropores with a high surface area of 135.15 m2/g. The different phases in the composites can efficiently enhance the visible-light absorption, improving the separation …
Novel magnetic Fe3O4/g-C3N4/MoO3 nanocomposites with highly
Photocatalytic activity of Fe3O4/g-C3N4/MoO3 (30%) was about 6.9, 5, and 19.9-fold higher than those of the MoO3, g-C3N4, and Fe3O4/g-C3N4 samples, respectively. The excellent photocatalytic performance was mainly attributed to the Z-scheme structure formed between MoO3 and g-C3N4, which enhanced the efficient …
Hyaluronic acid-modified hydrothermally synthesized iron oxide …
In this work, Fe3O4 NPs stabilized by PEI were first synthesized via a one-pot hydrothermal method. The formed PEI-stabilized Fe3O4 NPs were then modified with fluorescein isothiocyanate (FI) and HA with two different molecular weights to obtain two different Fe3O4 NPs (Fe3O4-PEI-FI-HA6K and Fe3O4-PEI-FI-HA31K NPs) with a size of 15-16 nm.
A Milestone in the Chemical Synthesis of Fe3O4 …
Among iron oxide phases, magnetite (Fe3O4) is often the preferred one for nanotechnological and biomedical applications because of its high saturation magnetization and low toxicity. Although there are several synthetic routes that attempt to reach magnetite nanoparticles (NPs), they are usually referred as "IONPs" (iron oxide NPs) due to the …
A Co-Doped Fe3O4 Nanozyme Shows Enhanced Reactive Oxygen and
Acute ischemic stroke has become the major cause of mortality and disability worldwide. Following ischemic stroke, the reperfusion injury is mainly mediated by the burst of reactive oxygen and nitrogen species (RONS). Therefore, blocking the excessive production or removing RONS holds great promise …
Gradience Free Nanoinsertion of Fe3O4 into Wood for …
Hydrovoltaic energy harvesting offers the potential to utilize enormous water energy for sustainable energy systems. Here, we report the utilization and tailoring of an intrinsic anisotropic 3D continuous microchannel structure from native wood for efficient hydrovoltaic energy harvesting by Fe3O4 nanoparticle insertion. Acetone-assisted precursor …
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Fe3O4 + CO → FeO + CO2
Fe3O4 + CO 3FeO + CO2 ↑. 2. Điều kiện phản ứng xảy ra giữa CO và Fe3O4. Nhiệt độ: 500 - 600 o C. Đây cũng là một trong các phản ứng hóa học xảy ra trong quá trình luyện quặng thành gang. 3. Tính chất của sắt từ (Fe3O4) Định nghĩa: Là hỗn hợp của hai oxit FeO, Fe 2 O 3. Có nhiều ...
Structure and optical properties of Fe3O4 nanoparticles
The optical properties of Fe 3 O 4 nanoparticles are associated with their crystal structure. Magnetite crystallizes in the inverse cubic spinel structure (Fd-3m [Fe 3 +] A [Fe 2 + Fe 3 +] B O 4), where A is the tetrahedral and B the octahedral side (Fig. 1).The energy bands of the Fe 3 O 4 nanoparticles were described by Sadat et al. [19].The …
Pilihan Obat yang Ampuh Hancurkan Batu Empedu
Bila Anda menggunakan obat warfarin, obat ini harus diminum 1 jam sebelum atau 4 hingga 6 jam setelahnya. 3. Ursodiol (Ursodeoxycholic acid) Obat penghancur batu empedu adalah ursodiol (Ursodeoxycholic acid). Biaa, obat digunakan jika ukuran batuan empedu tidak lebih dari 20 mm. Obat ini dapat dan perlu digunakan selama …
Frontiers | Enhanced Heterogeneous Fenton Degradation of …
Fe3O4-based heterogeneous Fenton catalysts have been widely employed for degrading organic pollutants, however it is challenging to use them in highly efficient and recyclable application in wastewater treatment. In this work, carboxylate-rich carbon (CRC)-modified Fe3O4 magnetic particles are prepared by the sol-gel self-combustion method, …
Preparation and characterization of magnetic Fe3O 4/CNT …
The Fe3O4/carbon nanotubes (CNTs) were prepared by in situ reduction with post-oxidation method by using cheap and environmentally friendly precu … This work described a novel method for the synthesis of high-ferromagnetism nanoparticles (Fe3O4/CNTs) to efficiently remove Cr(VI) from aqueous solution.
Tunable Fe3O4 Nanorods for Enhanced Magnetic …
Magnetic hyperthermia is one of the most promising techniques for treating gynecological cancer, where magnetite (Fe 3 O 4) is the most common nanomaterial …
Enhanced Heterogeneous Fenton Degradation of Organic
The CRC/Fe 3 O 4 catalyst exhibits high heterogeneous Fenton degradation performance. The complete 10 mg L -1 methylene blue () removal is achieved in 180 min under conditions of 10 mM H 2 O 2 and 1.00 g of L -1 CRC/Fe 3 O 4 at neutral pH. After five cycles, the structure and morphology of CRC/Fe 3 O 4 composites remained unchanged …
Highly photocatalytic active r-GO/Fe3O4 nanocomposites …
1. Introduction. Residual dyes emanating from pharmaceutical, paper, pulp, and textile industries are non-biodegradable organic pollutants into the natural water resources, even at low concentrations, leading to severe contamination and causing severe threats to marine and human life [[1], [2], [3], [4]].The efficient treatment of these …
Nanomaterials | Free Full-Text | Lightweight Chain-Typed Magnetic Fe3O4
A lightweight microwave-absorbing material with a strong electromagnetic-absorption capability of practical significance in the field of electromagnetic compatibility was obtained by adjusting the ratio of Fe3O4 and rGO. A nanoparticle material with a chain-typed structure consisting of a combination of Fe3O4 and rGO was produced by a …