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Magnetically separable Fe3O4@TiO2 nanospheres: …

In this paper, we combined mixed-solvent and solvothermal method for preparing Fe 3 O 4 @TiO 2 core–shell structured nanospheres featuring enhanced photocatalytic activity …

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Magnetic template-assisted construction of 2D PCN/TiO2 …

The obtained 2D PCN/TiO 2 heterostructures appeared as microscale hexagon plates with average thickness of 25 nm and exhibited excellent photocatalytic hydrogen generation rate (11.1 μmol h −1), which could be attributed to the large contacting area between PCN and TiO 2 enabling efficient charge separation and transport through the PCN/TiO ...

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Preparation of ordered TiO2 nanofibers/nanotubes by magnetic …

Ordered-and-oriented TiO 2 nanofibers and nanotubes were prepared by magnetic field-assisted electrospinning, and photocatalytic properties of all samples were analyzed under UV–Vis shine. TiO 2 nanofibers/nanotubes prepared by magnetic field-assisted electrospinning showed better degradation effect on rhodamine B, reduced the band gap, increased the …

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Fabrication and characterization of the magnetic separation

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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High-efficiency separation and transfer of photo-induced …

This can be attributed to the effect of the Lorentz force generated in the magnetic field, which benefits the separation of photo-induced charge carriers in TiO 2 NBs [19]. ... Photocatalytic degradation of MO in the presence of TiO 2 NBs under NMF conditions and TiO 2 NBs and 2.5 wt% rGO/TiO 2 NBs under magnetic field (MF) conditions. (d) ...

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Construction of a dual Z-scheme Cu|Cu2O/TiO2/CuO …

A novel dual Z-scheme Cu|Cu 2 O/TiO 2 /CuO photocatalyst composite film is successfully prepared through chemical oxidation, in situ growth, sol–gel spin coating and high temperature calcination methods. The photocatalytic activity of composite film under simulated sunlight irradiation is obviously enhanced in external magnetic field in norfloxacin degradation …

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Photocatalytic performance and magnetic separation of TiO2

Fe is thought to capture electrons that are photo-generated in TiO 2. This promotes the separation of photo-generated electrons and holes, so is responsible for the highest photocatalytic performance. Fe/TiO 2 has the highest saturation magnetization (61.5 emu/g), which is beneficial for magnetic separation. (3)

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Photo-Fenton degradation of amoxicillin via magnetic TiO2 …

In an effort to separate suspended TiO 2-GO-Fe 3 O 4 from wastewater, we designed a submerged magnetic separation membrane photocatalytic reactor (SMSMPR) and, for the first time, combined this reactor with the TiO 2-GO-Fe 3 O 4 magnetic catalyst. The ceramic membranes used in the SMSMPR can be effectively used for the separation of catalysts ...

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Designing of TiO2/α-Fe2O3 coupled g-C3N4 magnetic …

The superior degradation efficiency of magnetic g-C 3 N 4 /TiO 2 /α-Fe 2 O 3 ternary nanocomposite is about 95.7% of Rhodamine B (RhB) in 50 min under visible-light exposure. The photocatalytic upgrading performance was recognized to the synergetic interface among TiO 2, g-C 3 N 4 and α-Fe 2 O 3, with effective separation of electron/hole (e ...

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Study of the Preparation and Performance of TiO2 …

Combining TiO 2 with γ-Fe 2 O 3-modified coal-series kaolin produces a composite material that not only exhibits adsorption properties for anionic organic dyes but also enables magnetic separation and recovery. This …

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Preparation and characterization of the magnetic Fe3O4@TiO2

The paper reported an in-situ synthesis coating method to fabricate the magnetic Fe 3 O 4 @TiO 2 nanocomposite with high whiteness at low temperature (60 °C). The titanyl organic oxide was used as a precursor, which can form the crystalline nanosized TiO 2 at the normal pressure and low temperature in liquid phase [25, 26].The as-prepared sample has been …

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Advances in Graphene-Based Magnetic and Graphene …

In this review, various graphene-based/TiO 2 and graphene-based magnetic nanocomposites which were developed as highly efficient photocatalysts for degrading organic …

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Internal magnetic-field-enhanced photogenerated charge separation …

The magnetic properties of TiO 2 –HF4.5-N 2 are illustrated in Fig. S6. M S and H C of TiO 2 –HF4.5-N 2 were weaker than those of the TiO 2 –N 2 sample synthesised using 3 mL of HF solution. TiO 2 –N 2 and TiO 2 –HF4.5-N 2 exhibited different ratios of the exposed {101} and {001} facets owing to their differing amounts of HF solution ...

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New insights in the low-temperature-dependent …

An amorphous TiO 2 with a magnetic core-shell-shell structure (Fe 3 O 4 @PDA@a-TiO 2, denoted as FPaT) was constructed through a series of steps. The studies on the formation mechanism of FPaT ...

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Enhancing Reduction Separation and Efficient Recovery of

In this work, diboron xide and calcium fluoride are applied as composite additives to explore a process suitable for processing low-grade, high-vanadium, ultra-high-titanium vanadium–titanium magnetite. The metallized coal-based direct reduction–electromagnetic separation experiment was conducted. Results show that a good …

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Preparation of magnetic and thermal dual-responsive zinc …

A novel hybrid organic/inorganic magnetic and thermal dual-responsive core-shell green photocatalyst zinc-tetracarboxyl-phthalocyanine-g-Fe 3 O 4 @SiO 2 @TiO 2-g-poly(N-isopropyl acrylamide) had been prepared.Firstly, Fe 3 O 4 @SiO 2 @TiO 2 (FST) was prepared with core-shell structure, then thermosensitive poly(N-isopropylacrylamide) (PNIPAM) …

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Preparation and photocatalytic performance of magnetic TiO2…

The magnetic TiO 2 –Fe 3 O 4 composites showed rapid aggregation under the influence of a magnetic field, which can be useful for separation of these particles in applications [36], [37], [38]. Meanwhile, according to the energy level theory, the presence of Fe 3 O 4 can also enhance the photocatalytic activity of TiO 2 [39], [40]

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Fabrication and characterization of the magnetic separation

The magnetic properties of the synthesized catalysts were evaluated by using a vibrating sample magnetometer (VSM), and the room temperature magnetic hysteresis loops for the Ni-TiO 2 /AC, Ni-TiO ...

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Magnetic sedimentation of nonmagnetic TiO2 nanoparticles …

A new approach to remove TiO2 nanoparticles from water is studied. Composite Fe3O4-SiO2 and Fe-C-SO3H nanoparticles with magnetic cores (5 nm) were designed to be used as flocculants for magnetic sedimentation of nonmagnetic TiO2 nanoparticles in water. The sedimentation dynamics of heterogeneous water suspensions (starting solid phase …

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A comparative study for optimizing photocatalytic activity of TiO2

Despite CuO's ability to improve charge separation in TiO 2, recombination of electron-hole pairs remains an issue, particularly under real-world sunlight exposure. Improving electron transfer ...

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Recovery of titanium from beach sand by physical …

Heavy fraction from dense medium separation was used for the low intensity magnetic separation using a hand magnet to separate highly magnetic minerals. The remaining non-magnetic fraction has been separated into four individual fractions employing a Cook isodynamic magnetic separator (Figure 2) at 0.1, 0.3 and 0.5 tesla magnetic field strengths.

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Insight into the enhanced magnetic separation and …

Request PDF | Insight into the enhanced magnetic separation and photocatalytic activity of Sn-doped TiO2 core-shell photocatalyst | Much attention has been focused on the synthesis of TiO2 based ...

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An innovative process for recovery of ilmenite using mineral …

As shown in Fig. 13, magnetite on the surface of the titanium-iron coexisting particles was successfully removed by fine grinding and LIMS of primary magnetic separation concentrate. The TiO 2 grade in non-magnetic tailings was increased to 46.24 %, and the total recovery was 67.62 %. The final titanium concentrate could be used to produce ...

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Preparation Techniques of TiO 2 Nanofluids and …

Titanium dioxide (TiO2) has been used extensively because of its unique thermal and electric properties. Different techniques have been used for the preparation of TiO2 nanofluids which include single-step and two-step methods. In the natural …

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Photo-Fenton degradation of amoxicillin via magnetic TiO2 …

Request PDF | Photo-Fenton degradation of amoxicillin via magnetic TiO2-graphene oxide-Fe3O4 composite with a submerged magnetic separation membrane photocatalytic reactor (SMSMPR) | The photo ...

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Magnetic sedimentation of nonmagnetic TiO2 nanoparticles …

The removal both target TiO 2 particles and Fe-based magnetic flocculant particles were controlled from their residual concentration in water in the course of magnetic separation process. The understanding of the heteroaggregation effect on sedimentation dynamics will help to elaborate practical recommendations on the use of magnetic particles ...

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Facile method to synthesize magnetic iron oxides/TiO2 …

In this point, magnetic separation provides a convenient method to removing pollutants and recycling magnetized species by applying an appropriate external magnetic field. Therefore, …

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Magnetic separation of water suspensions containing TiO2 …

The dynamics of magnetic separation of TiO 2 nanoparticles (25 nm) from water by adding composite magnetic Fe-C-COOH nanoparticles (15 nm) and subsequent magnetic sedimentation or magnetic filtration has been studied. Magnetic sedimentation was carried out in a gradient magnetic field (H max = 0.3 T, (gradH) max = 0.13 T / m), and magnetic filtration (H …

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Insight into the enhanced magnetic separation and …

Magnetic Sn-doped TiO 2 core-shell photocatalyst is successful synthesized by Stöber and sol-gel methods. FST-S can be quickly separated from aqueous solution by a …

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Study of the Preparation and Performance of TiO2-Based …

Combining TiO 2 with γ-Fe 2 O 3-modified coal-series kaolin produces a composite material that not only exhibits adsorption properties for anionic organic dyes but also enables magnetic …