Development of graphene oxide/calcium phosphate coating by pulse electrodeposition on anodized titanium: Biocorrosion and mechanical behavior.

In this work, graphene oxide (GO) reinforcement was used to improve the strength and fracture toughness of the calcium phosphate (CaP) coating applied on the anodized titanium using pulse electrodeposition. Based on the results, the CaP coating consisted of mixed phases of octa-calcium phosphate (OCP), dicalcium phosphate dehydrate (DCPD) and hydroxyapatite (HAp); however, compositing of this coating with GO caused deposition of the pure HAp phase. Moreover, the nanohardness and Young's modulus of the CaP-GO coating increased over 52% and 41%, respectively, as compared to those measured for the GO-free coating.

Photocatalytic Performance of H P W O /TiO Nanocomposite Encapsulated into Beta Zeolite under UV Irradiation in the Degradation of Methyl Orange.

In this work, neat and supported H P W O into nanocage of β-zeolite were synthesized. However, H P W O into nanocage of β-zeolite was synthesized via template synthesis method. In addition, TiO was supported on H P W O /β zeolite by impregnation method.

Biocompatibility assessment of graphene oxide-hydroxyapatite coating applied on TiO nanotubes by ultrasound-assisted pulse electrodeposition.

In this study, the ultrasound-assisted pulse electrodeposition was introduced to fabricate the graphene oxide (GO)-hydroxyapatite (HA) coating on TiO nanotubes. The results of the X-ray diffraction (XRD), Fourier Transform Infrared spectroscope (FTIR), Transmission Electron Microscope (TEM) and micro-Raman spectroscopy showed the successful synthesis of GO. The Scanning Electron Microscope (SEM) images revealed that in the presence of ultrasonic waves and GO sheets a more compact HA-based coating with refined microstructure could be formed on the pretreated titanium.