We have demonstrated that poly(2-aminothiophenol)-stablized gold nanoparticles with proper size and polymer thickness are active catalysts for Suzuki-Miyaura cross-coupling reaction of aryl halides arylboronic acids in water air the first time. High yields can be obtained or bearing a variety substituents. This new finding will undoubtedly broaden application organic catalytic reactions.

Two-dimensional (2D) carbon nanomaterials generally display some limitations in adsorption applications due to easy agglomeration. To solve this problem, as-synthesized sandwiched nanocomposites made of Fe3O4 nanoparticles, poly(allylamine) hydrochloride molecules, and carboxylate graphene oxide sheets were prepared using a layer-by-layer (LbL) self-assembly method. The successfully synthesized structures the present have outstanding organic dye performance, stability, recycling....

Mesoporous hybrid shells of TiO₂/NiO were prepared by sequential coating TiO₂ and NiO on SiO₂ nanospheres through a combined sol–gel hydrothermal process followed calcination template removal.

Monodisperse carbon nanoparticles encapsulated in hollow NiO nanostructures (C@NiO) have been successfully synthesized by calcination from a Ni(OH)2 covered (C@Ni(OH)2) precursor. The as-prepared products at each stage were extensively characterized and carefully discussed. electrochemical properties of the investigated using cycling voltammetry charge–discharge techniques. specific capacitance obtained C@NiO electrode was about 988.7 F g−1 current density 0.5 A g−1. It shows better...

A facile and effective route has been proposed to synthesize gold nanoparticles with controllable size that uniformly deposited on surfaces of polyaniline (PANI) nanofibers, where PANI nanofibers themselves act as both supporter reductant. Effects reagent concentration, reaction time, temperature uniformity are investigated. Furthermore, a functional doping acid typical thioglycolic (TA) introduced in shows good potential for improvement composites control over nanoparticle size. Fourier...

Nanozymes, as a new generation of artificial enzymes, offer great opportunities in biomedical engineering and disease treatment. Synergizing the multiple intrinsic functions nanozymes can improve their performance biological systems. Here, we report novel nanozyme with yolk-shell structure fabricated by combining single gold nanoparticle core porous hollow carbon shell nanospheres (Au@HCNs). Au@HCNs exhibited enzyme-like activities similar to horseradish peroxidase oxidase under an acidic...

Abstract A novel method has been developed to synthesize gold nanoparticles with tunable size and morphology supported on both inner outer surfaces of poly( o ‐phenylenediamine) (P PD) hollow microspheres, which act as reductant template/stabilizer. The shells P PD microspheres can be tuned from 3 15 nm by changing the concentration source, HAuCl 4 . Gold nanorods also fabricated introducing a well‐known seed‐growth strategy. In addition, silver successfully using same strategy, indicates...

The binding characteristics and molecular mechanism of the interaction between a typical ionic liquid (IL), 1-butyl-3-methylimidazolium chloride ([bmim]Cl), as green solvent DNA were investigated for first time by conductivity measurements, fluorescence spectroscopy, dynamic light scattering (DLS), cryogenic transmission electron microscopy (cryo-TEM), circular dichroism 31P nuclear magnetic resonance (NMR) Fourier transform infrared isothermal titration calorimetry (ITC), quantum chemical...

Carbon-incorporated mesoporous NiO/TiO2 (NiO/TiO2/C) hybrid shells as low-cost and highly efficient visible light photocatalysts have been developed. The NiO/TiO2/C were synthesized by choosing polystyrene nanospheres templates, followed TiO2 NiO coating, finally the calcination post-treatment to carbonize PS with aid of metal oxides. Polystyrene serve dual purposes both a template ensure hollow structure electrically conductive graphite carbon source. Evaluation their photocatalytic...

Yolk@shell nanostructures of Au@r-GO/TiO2 with mesoporous shells were prepared by a sol-gel coating process sequentially GO and TiO2 on Au/SiO2 core/shell spheres, followed calcination template removal, where the silica interlayer acts as not only to produce void space but also promote r-GO layer. The evaluation visible light photocatalytic activities in dye decomposition water-splitting H2 production demonstrated their superior performance, which indicates potential powerful photocatalysts.

Multifunctional magnetic adsorbents of Fe₃O₄/PANI/MnO₂ core–shell hybrids have been developed through a facile and economic solution route, which show high adsorption capacity toward heavy metal ions.

Wolbachia bacteria are intracellular present in the microbiome of a large fraction insects and parasitic nematodes. They can block mosquitos’ ability to transmit several infectious disease-causing pathogens, including Zika, dengue, chikungunya, West Nile viruses malaria parasites. Certain extracellular gut lumen these also pathogen transmission. However, our understanding interactions between how they influence each other is limited. Here we show that presence strain w Mel changes...

Mesoporous hybrid shells of carbonized polyaniline (CPANI)/Mn2O3 with well-controlled diameter and high surface area have been synthesized through protected calcination processes. Originating from polystyrene template, PANI, MnO2, SiO2 were sequentially loaded, followed by template removal calcination, resulting in the desired CPANI/Mn2O3 shells. The introduction shell was established to play determining role maintaining configuration during process under temperature. showed outstanding...

A facile one-step method was proposed for the successful synthesis of Ag-nanoparticle-loaded mesoporous silica SBA-15 composites, where silver ions and their corresponding reductant aniline were added in traditional synthetic system containing P123 as surfactant TEOS source. Mesoporous Ag nanoparticles spontaneously formed with embedded channels even implanted frameworks SBA-15. tentative formation process then according to experimental observations. Furthermore, catalytic activities...

Dye wastewater is one of the most important problems to be faced and solved in treatment. However, treatment cannot single simple adsorption due complexity dye species. In this work, we prepared novel composite fiber adsorbent materials consisting ε-polycaprolactone (PCL) beta-cyclodextrin-based polymer (PCD) by electrospinning. The morphological spectral characterization demonstrated successful preparation a series fibers with different mass ratios. obtained have remarkable selective for MB...

Controllable fabrication of complex chiral nanostructures functional materials from achiral systems remains a great challenge. Herein, polyaniline (PANI) hollow nanotwists as have been prepared by chemical oxidation aniline in an HCl/isopropyl alcohol/water mixed solvent. The oligoaniline twisted nanoribbons generated at the early reaction stage established to act reactive sacrificial templates for inducing growth PANI nanotwists. Single-handed achieved tuning alcohol content solvent applied...