2017-4-5 · Fe/TiO 2 has the highest saturation magnetization (61.5 emu/g), which is beneficial for magnetic separation. (3) The photocatalytic and magnetic performances of the [email protected] @TiO 2 and [email protected] @TiO 2 catalysts are sensitive to the presence of the Fe 2 O 3 intermediate layer.
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2019-12-12 · These magnetic TiO2 composites with hollow nature exhibit good photocatalytic activity under UV light irradiation and can be recycled six times by magnetic separation without major loss of activity. This method can be further applied to synthesize other bifunctional hollow spheres, such as Fe3O4/SnO2 and Fe3O4/CdS.
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2015-2-18 · Novel hybrid Sr-doped TiO 2 /magnetic Ni 0.6 Zn 0.4 Fe 2 O 4 for enhanced separation and photodegradation of organics under visible light . F. Liu, Y. Xie, C. Yu, X. Liu, Y. Dai, L. Liu and Y. Ling, RSC Adv., 2015, 5, 24056 DOI:
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1996-1-23 · photocatalytic efficiency that would find potential application to cleaning polluted water with the help of magnetic separation. Magnetic TiO2/SiO2/NiFe204 composite photocatalytic particles with high crystalline TiO2 shell were synthesized via a mild The ...
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2020-1-5 · Furthermore, AC can load magnetic materials, such as Fe 3 O 4 or NdFeB, to become magnetic loading base materials. If the C-TiO 2 could be loaded onto this magnetic base material, the separation problem would be solved, and photoelectrons would be easily transferred because of the Fe 3 O 4 or NdFeB loading.
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2019-9-17 · We demonstrate that magnetic TiO 2 NTs are non-toxic for HeLa cells at therapeutic concentrations (≤200 µg/mL). Adhesion and endocytosis of magnetic nanotubes to a layer of HeLa cells are ...
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2015-12-27 · Figure 2. Cook isodynamic magnetic separator 2.2. Magnetic separation A disc magnetic separator (Wills, 1992) was employed to separate paramagnetic titanium bearing minerals from the deposit. In this separator magnetic field strengths up to 0.8 tesla were attainable in the gap between disc and flat pole stationary magnets placed below the disc.
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The synthetic protocol involves coating successive layers of TiO2 nanoparticles onto a magnetic core using a sol-gel method at low temperature, followed by
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2020-1-22 · Notably, we further observed the positive effect of external magnetic fields on photocatalytic activity of spin-polarized TiO2, attributed to the enhanced electron-spin parallel alignment. This work may create the opportunity for tailoring the spin-dependent electronic structures in metal oxides.
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2012-1-20 · magnetic separators and the principal ferromagnetic mineral separated is magnetite (Fe304),although hematite (re203) and siderite (FeCO3) can be roasted to produce magnetite and hence give good separation. The removal of "tramp" iron from ores can also be regarded as a form of low-intensity magnetic separation.
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2021-6-28 · Insight into the enhanced magnetic separation and photocatalytic activity of Sn-doped TiO2 core-shell photocatalyst Journal of Environmental Chemical Engineering ( IF 5.909) Pub Date : 2021-06-25, DOI: 10.1016/j.jece.2021.105840
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Here, we report an effective approach to extract intact form of food additive TiO2 nanoparticles from processed food through charge-charge interaction between TiO2 particles and charge-switchable starch magnetic beads ([email protected]), of which the captured TiO2 is readily harvested by switching the surface charge of [email protected] to neutral.
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Chat Online2019-7-20 · [email protected]/AC has a band gap of 2.535 eV, stable magnetic characteristics, and stability toward CR removal. [email protected]/AC showed the best performance for CR removal under both simulated sunlight (200-800 nm) and visible light (400-800 nm) irradiation compared to the other catalysts.
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2017-1-17 · Effective procedure to synthesize [email protected]@TiO2–Sn magnetically separable photocatalyst by a combination of co-precipitation, sol–gel and photodeposition methods was introduced. Products were characterized by XRD, SEM, VSM, EDS, DRS, TEM, ICP-OES and IR techniques. The dimensions of catalyst particle size were evaluated by scanning electron
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2017-3-7 · The advantages of heterogeneous catalysis, magnetic separation and enhanced catalytic activity of TiO 2 photocatalyst for dye degradation have been gathered. The superparamagnetic NPs and external applied magnetic field by a strong interaction together leads to easy separation of the catalyst immobilized on superparamagnetic nanomaterials from ...
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2018-3-6 · In this study, Fe3O4 magnetic nanoparticles were prepared from FeCl2/FeCl3 and NaOH solution by chemical co-precipitation method in an impinging stream-rotating packed bed. Then, Fe3O4/TiO2 photocatalyst was prepared for photocatalytic degradation of phenol by sol–gel method using butyl titanate and Fe3O4 magnetic nanoparticles. The surface morphology,
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2021-1-7 · Characterization. After magnetic separation, the apparent visual differences began to appear in the samples within 5 min. This fast and convenient kind of separation strongly supported the fabrication of superparamagnetic NPs (Surowiec et al. 2017).The first sign of the NPs adsorption onto the iron oxide NPs was approved by different transparency and color
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The synthetic protocol involves coating successive layers of TiO2 nanoparticles onto a magnetic core using a sol-gel method at low temperature, followed by the deposition of silver nanoparticles ...
Chat Online2020-1-22 · Notably, we further observed the positive effect of external magnetic fields on photocatalytic activity of spin-polarized TiO2, attributed to the enhanced electron-spin parallel alignment. This work may create the opportunity for tailoring the spin-dependent electronic structures in metal oxides.
Chat OnlineRequest PDF | Insight into the enhanced magnetic separation and photocatalytic activity of Sn-doped TiO2 core-shell photocatalyst | Much attention has
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TiO2 nanofibers integrating space-separated magnetic nanoparticles and heterostructures have been fabricated to construct multifunctional photocatalysts with excellent photocatalytic activity and magnetic recoverability. The electrospinning technique has been employed to prepare the Fe3O4-embedded TiO2 (Fe3O
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Therefore, the present study aims to prepare novel core-interlayer-shell TiO2 magnetic photocatalysts modified with metal nanoparticles (Pt, Cu),
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Herein, we propose a novel approach for the preparation of TiO 2-graphene oxide (GO)-Fe 3 O 4 with high photo-Fenton catalytic performance and capability of magnetic recovery. To realize the recovery of the catalysts, the combination of a submerged magnetic separation membrane photocatalytic reactor (SMSMPR) and TiO 2 -GO-Fe 3 O 4 was applied ...
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2011-9-30 · Many methods have been reported to improving the photocatalytic efficiency of organic pollutant and their reliable applications. In this work, we propose a facile pathway to prepare three different types of magnetic iron oxides/TiO2 hybrid nanoparticles (NPs) by seed-mediated method. The hybrid NPs are composed of spindle, hollow, and ultrafine iron oxide
Chat Online2017-1-17 · Effective procedure to synthesize [email protected]@TiO2–Sn magnetically separable photocatalyst by a combination of co-precipitation, sol–gel and photodeposition methods was introduced. Products were characterized by XRD, SEM, VSM, EDS, DRS, TEM, ICP-OES and IR techniques. The dimensions of catalyst particle size were evaluated by scanning electron
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The as-obtained γ-Fe 2 O 3 /TiO 2 JHBs have a transition layer of Fe 3+-doped-TiO 2 between the γ-Fe 2 O 3 and TiO 2 phases, and show an efficient visible-light photocatalytic activity and convenient magnetic separation for water purification because of the unique structure and morphology as well as the fine magnetic properties.
Chat Online2019-4-23 · A novel photo-Fenton catalytic system for the removal of organic pollutants was presented, including the use of photo-Fenton process and a submerged magnetic separation membrane photocatalytic reactor (SMSMPR). We synthesized TiO2–Fe3O4 composites as the photocatalyst and made full use of the magnetism of the photo Editors' Collection:
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2010-5-6 · The effect of the Ag core on the bandgap of TiO 2 and photoinduced charge separation of [email protected] 2 nanoparticle films was studied by UV-Vis reflectance spectroscopy using the Kubelka-Munk formalism. Films of [email protected] 2 core-shell nanoparticles revealed a substantially reduced bandgap of 2.75 eV (corresponding to 450 nm), and an electron charge ...
Chat Online2012-1-20 · magnetic separators and the principal ferromagnetic mineral separated is magnetite (Fe304),although hematite (re203) and siderite (FeCO3) can be roasted to produce magnetite and hence give good separation. The removal of "tramp" iron from ores can also be regarded as a form of low-intensity magnetic separation.
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