Yang Xiaohong

Facile Synthesis of Assembly HAP Nanoribbon Spheres and the Synergized Action of Its Photocatalytic Properties

Hydroxyapatite (HAP) nanoribbon spheres with well-defined nanoscale structures and regular morphology were successfully synthesized using a bioactive cooperate template. The spheres are about 5-6 μm in diameter and they form from nanoribbons of 2.5 to 3 μm in length. The morphologies, structures, and surface areas of the products were studied by X-ray diffraction (XRD), transmission electron microscopy (TEM), scanning electron microscopy (SEM), Fourier transform infrared (FT-IR) spectroscopy and Brunauer-Emmett-Teller (BET) analysis. In addition, the products were used as carried materials for the synthesis of the HAP/ZnO composite catalyst. The degradation rate of rhodamine B (RhB) increased by 125% and the recovery increased by 23.1% when using the composite as a catalyst compared with the ZnO nanoparticles. Possible mechanisms for the formation of the HAP assembly microspheres and their synergistic action are also discussed.

In Situ Preparation and Antistatic Research of Calcium Carbonate/Nickel Composite

Calcium carbonate(CC) with calcite structure was efficiently synthesized using collodion membrane as an active template.Then,the CaCO3/Ni composite was obtained through in situ reaction on the CC surface.The morphologies,structures,and thermal stability of the composite were studied by TEM,XRD,FT-IR and TG-DTA,etc.The composite was added to the antistatic-coating system,which shows the same antistatic ability(electrical resitivity:1.2×106 Ω·cm) as that of Ni powders,and saves about 60% Ni.The composite can be applied in the fields of conductive,antistatic,etc.,to replace Ni materials.