Architectural control syntheses of CdS and CdSe nanoflowers, branched nanowires, and nanotrees via a solvothermal approach in a mixed solution and their photocatalytic property

Article Abstract:

Semiconductor CdS and CdSe nanostructures with complex form such as urchin-like nanoflowers, branched nanowires and fractal nanotrees were synthesized via a facile solvothermal approach in a mixed solution made of diethylnetriamine (DETA) and deionized water (DIW). The results showed that the morphologies of CdS and CdSe nanocrystals can be controlled via tuning the volume ratio of DETA and DIW suggesting that the photocatalytic property of CdS nanostructures is related to its unique structural feature.

Semiconductors and related devices, Semiconductor Devices, Semiconductor and Related Device Manufacturing, Semiconductor device, Electric properties, Nanotechnology, Amines, Electrical wire, Electric wire

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Formation of uniform CuO nanorods by spontaneous aggregation: Selective synthesis of CuO, Cu2O, and Cu nanoparticles by a solid-liquid phase arc discharge process

Article Abstract:

Uniform and monodisperse CuO nanorods are synthesized by directional aggregation and crystallization of tiny CuO nanoparticles generated from a solid-liquid arc discharge process under ambient conditions in the absence of any surfactants. Uniform CuO nanorods with sharp ends are formed from tiny nanoparticles through a process that involves the rapid oxidation of Cu nanoclusters, the spontaneous aggregation of CuO nanoparticles, and Ostawald ripening process.

Crystallization, Copper oxide, Copper oxides, Nanoparticles

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Block-copolymer-controlled growth of CaC[O.sub.3] microrings

Article Abstract:

A novel polymer-controlled mineralization reaction is proposed for the synthesis of ringlike CaC[O.sub.3] superstructures. The proposed formation mechanism of such rings is based on the formation of CaC[O.sub.3] nanoparticles in disordered block copolymer assemblies which leads to the formation of a polymer concentration gradient and as the polymer contains multiple chelating units, this leads to dissolution of the particle core forming the mesorings.

All Other Basic Inorganic Chemical Manufacturing, Industrial inorganic chemicals, not elsewhere classified, Calcium Carbonate, Adsorption, Block copolymers

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