Enhanced catalytic degradation of amoxicillin with TiO2 …
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 photocatalys …
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Cyclodextrin-Functionalized Fe3O4@TiO2: Reusable, Magnetic
The amorphous TiO 2 shell is the photocatalyst for the degradation and mineralization of the organics, bisphenol A and dibutyl phthalate, under UV illumination, and the magnetism associated with the 9 nm crystalline Fe 3 O 4 core allows for the magnetic separation from the dispersion once photocatalytic degradation is complete. An …
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Internal magnetic-field-enhanced photogenerated charge separation …
@article{Wang2023InternalMP, title={Internal magnetic-field-enhanced photogenerated charge separation in ferromagnetic TiO2 surface heterojunctions between {001} and {101} facets}, author={Guojing Wang and Shirong Xiong and Yonghui Chen and Chunchang Wang and Shasha Lv and Ke Jun Jia and Yunjie Xiang and Jianbo Liu and …
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Simulation and Optimization of the Combined High …
In this study, the established high gradient magnetic separation-ultraviolet photocatalysis (HGMS-UV/TiO 2) system was taken, the back propagation (BP) neural …
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Charge-switchable magnetic separation and
Preparation of PL@SMBs for magnetic separation of food additive TiO 2 from food. Starch magnetic beads (SMBs) were synthesized through co-crystallization of iron oxide nanoparticles (IONPs) and short-chain glucan (SCG) obtained by enzymatic hydrolysis of waxy maize starch using pullulanase (Fig. 1A) (Luo et al., 2018a).
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Simulation and Optimization of the Combined High-Gradient Magnetic …
Ballast water has a negative impact on marine environment; the existing combined ultraviolet (UV) filtration system that for treating ballast water has relatively low effective rate and instability in inactivating microorganisms. In this study, the established high gradient magnetic separation-ultraviolet photocatalysis (HGMS-UV/TiO2) system …
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Enhanced catalytic degradation of amoxicillin with TiO
We combined an SMSMPR with the magnetic TiO 2 –Fe 3 O 4 catalyst. The prepared TiO 2 –Fe 3 O 4 composites showed high photo-Fenton catalytic activity for degradation of AMX. Cycle experiments demonstrate that the combination of backwashing treatment with magnetic separation could enhance the stability and reusability of the …
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Fe3O4@SiO2@TiO2@Pt Hierarchical Core-Shell Microspheres …
The assembled TiO 2 -based magnetic catalysts inherited the features of both magnetic components and TiO 2 nanostructures, generating high photocatalytic activity and improving separation capability.
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Magnetic separation of water suspensions containing TiO2 …
TiO 2 nanoparticles were separated from water by magnetically seeded filtration and sedimentation.. Heteroaggregation of the TiO 2 nanoparticles and the magnetic Fe-C-COOH nanoseeds is a key factor.. The magnetic separation is tuned by changing pH and the particle concentration in water. • Magnetic filtration is a more …
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Magnetic sedimentation of nonmagnetic TiO2
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 …
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Photo-Fenton degradation of amoxicillin via magnetic TiO
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 …
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Recyclable magnetic nanoparticles combined with TiO2 …
In the presence of an external magnetic field, they can carry out the separation of reaction substrates quickly [17]. Besides, to achieve enrichment of phosphate groups, we have introduced TiO 2 because the nature of the chelating force can be formed between TiO 2 and phosphate diphosphate [18], [19], [20].
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Construction of a dual Z-scheme Cu|Cu2O/TiO2/CuO …
Wakasa et al. initially studied the photocatalytic reaction of magnetic ultrafine TiO 2. ... On the contrary, the magnetic field can inhibit the separation of photo-generated carriers for the other part. Therefore, the two effects may be canceled out each other. In order to solve these problems, we first proposed the idea of constructing a dual ...
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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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Magnetic separation of water suspensions …
The dynamics of magnetic separation of TiO2 nanoparticles (25 nm) from water by adding composite magnetic Fe-C-COOH nanoparticles (15 nm) and …
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Insight into the enhanced magnetic separation and photocatalytic
Much attention has been focused on the synthesis of TiO 2 based materials as photocatalysts for water pollutant treatment, it still needs overcome difficulties of separation of TiO 2 photocatalyst from the treated water and the recombination of photo-induced carriers to improve catalytic activities.In this paper, a magnetical core-shell Fe 3 O 4 …
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Photocatalytic performance and magnetic separation of TiO2
Fe/TiO 2 also has the highest saturation magnetization (61.5 emu/g), which is beneficial for magnetic separation. The adsorption efficiencies, degradation efficiencies, apparent reaction rate constants, and saturation magnetizations of the Fe@Fe 2 O 3 @TiO 2 catalysts are sensitive to the properties of the Fe 2 O 3 intermediate layer.
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Recovery of phosphorus from aqueous solution by magnetic TiO
Considering adsorption and magnetic separation performances, the optimal molar ratio of Fe 3 O 4 to TiO 2 * is 0.02 to prepare TiO 2 */Fe 3 O 4 composite. When preparing the TiO 2 */Fe 3 O 4 composite, except that 0.1307 g of nano-Fe 3 O 4 was ultrasonically dispersed in 40 mL of absolute ethanol before adding C 16 H 36 O 4 Ti, the …
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Internal magnetic-field-enhanced photogenerated charge separation …
The use of the internal magnetic field of ferromagnets can effectively promote charge separation and transfer (CST) in photoelectrochemical energy conversion. However, photoelectrochemical materials with a ferromagnetic field are scarce, and the internal magnetic field is negligible in nonferromagnetic materials. ... The photocatalytic …
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Magnetically separable Fe3O4@TiO2 nanospheres: …
Teng Yuan, Feng Wang, Jianqing Hu & Weiping Tu. 878 Accesses. 10 Citations. Explore all metrics. Abstract. A facile and efficient approach for the fabrication …
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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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Enhanced catalytic degradation of amoxicillin …
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 …
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High-Titanium Slag Preparation Process by Carbothermic
The morphology of the titanium slag before and after the wet-magnetic separation process is shown in Figure 13. The particle size of the titanium slag after wet-magnetic separation was smaller than that before wet-magnetic separation, which is due to further decrease in particle size caused by grinding in water during wet-magnetic …
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Co-doped magnetic N-TiO2-x/rGO …
Titanium dioxide (TiO 2) ... (TGNF) photocatalyst, which exhibits magnetic property for convenient separation from water body. The immobilization of nano-photocatalysts onto a reliable floating substrate is a practical method that offers flexibility and self-separation for a wastewater treatment system. More noteworthy, such design …
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Efficient oil-water separation with amphipathic magnetic …
Recently, oil-water separation materials with special wettability surfaces have attracted intense attention. In this work, amphiphilic magnetic nanoparticles of Fe3O4@TiO2 are prepared by the ...
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Efficient oil-water separation with amphipathic magnetic …
The oil removal performance with magnetic nanoparticles Fe 3 O 4 @TiO 2 is evaluated by a handheld oil meter after rotating at 250 rpm for a certain time. Results show that the prepared material has the best oil-water separation performance and maintains high magnetism when the weight ratio of TiO 2 is 80%. When the dosage is 0.125% (w/v), the ...
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Separations | Free Full-Text | Separation of Ilmenite from …
Here, the separation of ilmenite from VTM ore is studied by combining magnetic separation and flotation technologies. In particular, the floatability of mixed MOH/PG-1 collectors is thoroughly investigated. The results show that a concentrate with a TiO2 grade of 9.90% can be separated via weak magnetic separation and coarse particle tailing ...
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Enhancing Reduction Separation and Efficient Recovery of
Overall, the metallization reduction–magnetic separation process with diboron trioxide and calcium fluoride as composite additives has achieved excellent metallization ratio, satisfied separation and recovery of valuable components, and large-scale lowered reaction temperature and time. ... However, at 1050 °C, part of TiO 2 …
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Simulation and Optimization of the Combined High-Gradient Magnetic …
In this study, the established high gradient magnetic separation-ultraviolet photocatalysis (HGMS-UV/TiO 2) system was taken, the back propagation (BP) neural network and TracePro was used to simulate and analyse the UV field intensity in the system for optimizing. Further experimental verification was carried out with seawater sample to ...
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High-efficiency separation and transfer of photo
Combining Lorentz force and build-in electric potential to boost charge separation and transfer for powder photocatalysts. • The photocatalytic efficiency of rGO/TiO 2 nanobelts heterostructure in magnetic field can be improved by 107%.. Provide a new idea to boost photocatalytic activity based on external magnetic field and …
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