Mesoporous spindlelike iron oxide/ZnO core–shell heterostructures are successfully fabricated by a low-cost, surfactant-free, and environmentally friendly seed-mediate strategy with the help of postannealing treatment. The material composition stoichiometry, as well these magnetic optical properties, have been examined verified means high-resolution transmission electron microscopy X-ray diffraction, thickness ZnO layer can be simply tailored concentration zinc precursor. Considering that...

A reduced graphene oxide (RGO)–ZnIn2S4 nanosheet composite was successfully synthesized via an in situ controlled growth process. The as-obtained RGO–ZnIn2S4 showed excellent visible light H2 production activity the absence of noble metal cocatalysts.

We present a facile approach to the production of magnetic iron oxide short nanotubes (SNTs) employing an anion-assisted hydrothermal route by simultaneously using phosphate and sulfate ions. The size, morphology, shape, surface architecture control SNTs are achieved simple adjustments ferric ions concentration without any surfactant assistance. result formation mechanism investigation reveals that concentrations, amount anion additive, reaction time make significant contributions SNT...

Abstract Core/shell heterostructure composite has great potential applications in photocatalytic field because the introduction of core can remarkably improve charge transport and enhance electron-hole separation. Herein, hierarchical Bi 2 S 3 /In core/shell structured microspheres were prepared via a simple one-pot hydrothermal process based on different growth rate two kinds sulphides. The results showed that, as-prepared exhibits significant visible light activity for degradation 2,...

Reduced graphene oxide (RGO)–TiO₂ nanowire array hierarchical composites were prepared <italic>via</italic> an <italic>in situ</italic> controlled growth process and subsequent calcination, showed much higher H₂ production activity than that of pure TiO₂ RGO–TiO₂ generated by mechanical mixing.

Visible-light-induced self-cleaning properties of Bi2MoO6/TiO2 bilayer films have been realized by controlling the synthesis hierarchical flake-like Bi2MoO6 on TiO2 nanoparticle film substrates a solvothermal process. By tuning reaction time, we could facilely prepare with desired surface morphology. UV-visible diffuse reflectance spectroscopy analysis indicated that can extend their absorption edges to visible light region, and showed gradually enhanced because increase content...

Iron oxide/SnO(2) magnetic semiconductor core-shell heterostructures with high purity were synthesized by a low-cost, surfactant-free and environmentally friendly hydrothermal strategy via seed-mediated method. The morphology structure of the hybrid nanostructures characterized means high-resolution transmission electron microscopy X-ray diffraction. evolution investigations reveal that Kirkendall effect directs diffusion causes formation iron quasi-hollow particles. Significantly,...

Abstract Magnetic spindle-like Fe 3 O 4 mesoporous nanoparticles with a length of 200 nm and diameter 60 were successfully synthesized by reducing the α-Fe 2 NPs which prepared forced hydrolysis method. The obtained samples characterized transmission electron microscopy, powder X-ray diffraction, attenuated total reflection fourier transform infrared spectroscopy, field emission scanning vibrating sample magnetometer, nitrogen adsorption-desorption analysis techniques. results show that...

Heterogeneous photocatalysis is of great interest for environmental remediation applications. However, fast recombination photogenerated electron–hole pair and a low utilization rate sunlight hinder the commercialization currently available semiconductor photocatalysts. In this regard, we developed unique ternary single core-double shell heterostructure that consists α-Fe2O3@SnO2@Cu2O. This exhibits tube-like morphology possessing broad spectral response due to combination narrow bandgap...

A series of hierarchical reduced graphene oxide (RGO)–Bi2MoO6 composites were fabricated via a facile solvothermal route. In the reaction process, Bi2MoO6 nanoflakes in situ grown on (GO) nanosheets. Meanwhile, GO was during reaction. Such synthetic strategy can form effective interfacial contact and strong interaction between RGO nanosheets, which facilitate transfer photogenerated charge hence reduce recombination rate excited carriers. The enhanced properties proved by surface...

Our study reports a novel iron oxide/noble metal/semiconductor ternary multilayer hybrid structure that was synthesized through template synthesis and layer-by-layer deposition. Three different morphologies of α-Fe2O3/Ag/SiO2/SnO2 architectures were obtained with thicknesses the SiO2 interlayer which introduced for tailoring controlling coupling noble metal Ag nanoparticles (NPs) SnO2 semiconductor. The resulting samples characterized in terms morphology, composition, optical property by...

Tailorable synthesis of plasmon enhanced catalysts with high solar-light harvesting and energy-conversion efficiency has attracted wide interest due to its scientific technological importance. In this paper, novel SiO2–Ag–SiO2–TiO2 multi-shell photocatalysts wide-spectral-response were systematically designed controllably synthesized, where the SiO2 spheres used as cores, interlayers coated on Ag nanoparticle (NP) shells separate from TiO2 shell. The structures can be tailored by changing...

Hierarchical flower-like TiO2 with an anatase–rutile heterojunction was prepared by a hydrothermal process in the presence of titanium trichloride and poly(sodium-p-styrenesulfonate) (PSS). The morphology evolution formation mechanism as-obtained products were investigated detail. It found that crystalline phase can be easily adjusted changing reaction time or solution system. On basis this hierarchical nanoflower structure, visible light sensitive Ag/hierarchical plasmonic photocatalyst...

Sea-urchin shaped Bi₂S₃/CdS hierarchical heterostructures were synthesized <italic>via</italic> a one-pot solvothermal route, which exhibited enhanced photocatalytic activity.

Abstract A series of SiO 2 /poly(styrene‐ co ‐butyl acrylate) nanocomposite microspheres with various morphologies (e.g., multicore–shell, normal core–shell, and raspberry‐like) were synthesized via miniemulsion polymerization. The results showed that the morphology composite latex particles was strongly influenced by presence or absence soft monomer (butyl acrylate), particle sizes silica, emulsifier concentrations. incorporation helped in forming multicore–shell structure. © 2006 Wiley...

Abstract The fabrication of multicomponent composite systems may provide benefits in terms charge separation and the retardation pair recombination. For this purpose, a hierarchical Ag/AgBr/Bi 2 MoO 6 was fabricated by using prepared floriated Bi hollow spheres as supporting material. interleaved nanoflakes assembled contributed to stable deposition Ag/AgBr nanoparticles formation effective nanojunctions, which led low recombination rates photoinduced electron–hole pairs. presence double...

Abstract Controlled synthesis of low‐dimensional materials, such as nanoparticles, nanorods, and hollow nanospheres, is vitally important for achieving desired properties fabricating functional devices. We report a systematic investigation the growth sub‐100 nm SnO 2 nanostructures by mild template‐ surfactant‐free hydrothermal route, aiming to achieve precise control morphology size. The starting materials are potassium stannate urea in an ethylene glycol (EG)/H O system. found size...

Composite materials containing different components with well-defined structures may cooperatively enhance their performance and extend applications. In this work, core-shell γ-Fe2O3@SnO2 hollow nanoparticles (NPs) were synthesized by a low-cost environmentally friendly seed-mediated hydrothermal method. Firstly, the γ-Fe2O3 NPs template-free Then they used as cores for growth of SnO2 shells. The thickness shell can be simply tailored controlling reaction time. Various techniques, including...

We present an innovative approach to the production of sub-100 nm hollow Au–SnO2 hybrid nanospheres, employing a low-cost, surfactant-free and environmentally friendly solution-based route. The nanostructures were synthesized using seed-mediated hydrothermal method, which can be divided into two stages: (1) formation multicore–shell Au@SnO2 nanoparticles (NPs) (2) thermal diffusion ripening form NPs. morphology, optical properties mechanism determined by collection joint techniques....

Ultrathin core–shell Au@RuNi nanowires have been synthesized via the epitaxial growth of uniform fcc -structured RuNi alloy layer on surface ultrathin Au NWs, demonstrating remarkable alkaline HER performance and outstanding stability.

In order to overcome the low utilization ratio of solar light and high electron-hole pair recombination rate TiO2, triangular Ag nanoparticle island is covered on surface TiO2 thin film. Enhancement photocatalytic activity Ag/TiO2 nanocomposite system observed. The increase generation caused by enhanced near-field amplitudes localized plasmon nanoparticles. efficiently suppressed metal-semiconductor contact can also enhance