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microparticles, etc ; gentian violet; manganese; oxygen; photocatalysis; photocatalysts; Show all 6 Subjects
Abstract:
... High-efficiency separation of photogenerated charges and molecular oxygen activation is very important for photocatalytic removal of organic pollutants. However, the current understanding of the effect mechanism of metal substitution for the separation of photo-generated charges and molecular oxygen activation is still poor. Herein, efficient manganese (Mn)-doped BiOBr hollow microspheres synthesi ...
microparticles, etc ; adsorption; carbon dioxide; energy; environmental degradation; lighting; photocatalysis; photocatalysts; photoreduction; value added; Show all 10 Subjects
Abstract:
... The conversion of carbon dioxide (CO₂) into value-added C1 and/or C2 chemicals by photocatalytic technology has been regarded as a “one stone-two birds” solution for environmental degradation and energy shortage. In this work, a novel Z-scheme mechanism photocatalyst of Ag-modified α-Fe₂O₃ spherical particles interspersed on hierarchical flower-like layered nickel-aluminum hydroxides (NiAl-LDH) mi ...
microparticles, etc ; absorption; carbon; carbonization; durability; electromagnetic radiation; magnetism; manganese monoxide; nanoparticles; nickel; radar; Show all 11 Subjects
Abstract:
... Regulating electromagnetic parameters and thus improving impedance matching characteristics by multi-component design is regarded as a prospective approach to obtain highly efficient electromagnetic wave absorption materials. Whereas, it is still challenging to fabricate microwave absorbers with strong absorption capacity and durability in harsh conditions. Based on the above considerations, three ...
microparticles, etc ; adsorption; fluorides; ion exchange; pH; polymers; seawater; sorption isotherms; surface water; synergism; tap water; wastewater; Show all 12 Subjects
Abstract:
... In this paper, red mud-based geopolymer microspheres (RM@GMs: 75–150 µm) was prepared by dispersion-suspension-solidification method to remove fluoride ions (F⁻). It was found that RM@GMs still had good mechanical properties and better F⁻ removal effect at RM content reached 80 % of the total solid mass. The batch adsorption experiment results showed that the F⁻ concentration (< 1.5 mg/L) reached ...
... Allelochemicals sustained-release microspheres (ACs-SMs) exhibited great inhibition effect on algae, however, few studies have focused on ACs-SMs toxicity on invertebrate. In this study, the effects of single high-concentration ACs (15 mg/L, SH-ACs), repeated low-concentration ACs (3 × 5 mg/L, RL-ACs) and ACs-SMs containing 15 mg/L ACs exposure on the ingestion, incorporation, and digestion of Dap ...
... Torularhodin is a carotenoid with various biological activities. Carotenoids reportedly benefit gut health, but the effect of torularhodin on the gut is unclear. Therefore, torularhodin microspheres were prepared by electrospinning technology, and then their colonic targeting was studied by an in vitro intestinal simulation system. The results show that the torularhodin electrospinning nano-micros ...
... Rapid detection technology of aquaculture fishery drug residues is needed to supplement large-scale instrument methods. To do this, the time-resolved fluorescence immunoassay (TRFIA) method and portable three-dimensional (3D) printing equipment platform were used, in combination with smartphones, to detect malachite green (MG) in pond sediments. The TRFIA was coupled to MG monoclonal antibodies (m ...
... Agriculture lands have low fertilizer retention owing to porosity and irrigation, whereas a significant portion of fertilizer is lost through denitrification, volatilization, surface run-off, and leaching, causing losses of nutrients to air and ground/surface water. Urea fertilizer readily enhances the agricultural yield but also deteriorates the quality of fertile soils. To combat such problems, ...
... Chiral pillar[5]arene-functionalized silica microspheres were prepared and characterized for the first time, and can be used as a new kind of chiral stationary phase for effective enantioseparation under reversed-phase and normal phase modes with good reproducibility and stability. ...
microparticles, etc ; anodes; electrochemistry; longevity; Show all 4 Subjects
Abstract:
... Anode materials with a high initial coulombic efficiency and a long lifespan are highly desirable for sodium-ion batteries. Here, bimetallic μ-BiSn microspheres well combine the high capacity of Sn and the good stability of Bi together, exhibiting superior electrochemical performance, such as a high initial Coulombic efficiency (90.6%), a good cycling stability (541 mA h g⁻¹ after 3000 cycles at 2 ...
microparticles, etc ; catalytic activity; triethylamine; Show all 3 Subjects
Abstract:
... Surface modification of metal oxides with bimetallic nanoparticles is regarded as an appealing way to improve the gas sensing properties. Herein, SnO₂ hollow microspheres with wrinkle surface were synthesized, and were then decorated with Au, Ag, and bimetallic AuAg nanoparticles by immersing SnO₂ into the solutions containing these as-prepared metal particles. Gas test results showed that the SnO ...
... Single-molecule detection can push beyond ensemble averages and reveal the statistical distributions of molecular properties. Measuring the binding kinetics of single proteins also represents one of the critical and challenging tasks in protein analysis. Here, we report total internal reflection-based evanescent scattering microscopy with label-free single-protein detection capability. Total inter ...
... The positively charged MoO₃/PDA microspheres are obtained by stacking and assembly of the sheet structure, and the negatively charged MXene nanosheets are wrapped on the surface through the principle of electrostatic self-assembly. After annealing, a nitrogen-doped carbon composite and a MXene-coated Mo₂C wave absorber are obtained. The formation of the wrinkled surface provides a complex pore str ...
microparticles, etc ; absorption; copper; liquids; magnetism; Show all 5 Subjects
Abstract:
... Facing the inherent defects of magnetic materials, the research of non-magnetic absorbers has gradually become a new direction in the research of microwave absorbers to fit the requirements of a new generation for high strength, wide effective absorption bandwidth. Herein, the liquid metal and copper (LC) composite micro-particles with multiple heterojunctions and core–shell structure, which have ...
microparticles, etc ; absorption; carbon; polyaniline; polymerization; Show all 5 Subjects
Abstract:
... Reasonable combination of components and ingenious structure design are effective strategies to achieve superior microwave absorption (MA). In this work, polyaniline was grown in situ on hollow porous carbon microspheres prepared by polymerization and pyrolysis-etching processes. The synthesized hollow porous carbon@polyaniline (HPC@PANI) shows a specific hierarchical structure and possesses extra ...
microparticles, etc ; absorption; air; carbon; nanoflowers; Show all 5 Subjects
Abstract:
... Integration of hierarchical polarizations within one nanoarchitecture combines superiorities of strong dielectric polarization loss and matched characteristic impedance for enhancing microwave absorption (MA) performance. However, accurate regulation of polarization relaxations in hierarchical composites remains a considerable challenge. Herein, novel Mo₂C@N, P dual-doped carbon microspheres with ...
microparticles, etc ; energy conversion; luminescence; photons; Show all 4 Subjects
Abstract:
... Increasing upconversion luminescence (UCL) to overcome the intrinsically low conversion efficiency of upconversion nanoparticles (UCNPs) poses a fundamental challenge. Photonic nanostructures are the efficient approaches for UCL enhancement by tailoring the local electromagnetic fields. Unfortunately, such nanostructures are sensitive to environmental conditions, and the regulation strength is var ...
microparticles, etc ; adhesion; hydrophobicity; polystyrenes; surfactants; swine; Show all 6 Subjects
Abstract:
... Microneedle (MN) patches enable simple self-administration of drugs via the skin. In this study, we sought to deliver drug-loaded microspheres (MSs) using MN patches and found that the poly(lactic-co-glycolic acid) (PLGA) MSs failed to localize in the MN tips during fabrication, thereby decreasing their delivered dose and delivery efficiency into skin. We determined that surface interactions betwe ...
microparticles, etc ; absorption; carbon; magnetism; synthesis; yeasts; Show all 6 Subjects
Abstract:
... Manufacturing dielectric/magnetic composites with hierarchical structure is regard as a promising strategy for the progress of high-performance microwave absorption (MA) materials. In this paper, the nano-grass structured CoNiO₂ magnetic shell was uniformly anchored on the yeast-derived carbon microspheres by in-situ one-pot synthesis method. Profiting from the unique nano-grass and core–shell str ...
microparticles, etc ; nanosheets; pyrolysis; rapid methods; xylene; Show all 5 Subjects
Abstract:
... CuO/WO₃ hierarchical hollow microspheres, assembled from irregular two dimensional (2D) nanosheets, were prepared by ultrasonic-wet chemical etching and pyrolysis in this study. The sensing performance of Micro-Electro-Mechanical System (MEMS) xylene gas sensor based on CuO/WO₃ hierarchical structure were evaluated. It was found that the CuO/WO₃ MEMS sensors showed an enhanced gas sensing performa ...