Synthesis, characterization and catalytic properties of copper-substituted hydroxyapatite nanocrystals

Aqueous-phase catalytic hydroxylation of phenol with H2O2 by using a copper incorporated apatite nanocatalyst

“…34 Moreover, when copper was incorporated to the apatite, the signal of PO 4 3À was shied from 2.58 to 1.89 ppm. 35 Indeed, the phosphorus groups cannot be distinguished in the Ca 10 (PO 4 ) 6 (OH) 2 and Ca 19 Cu 2 (PO 4 ) 14 phases by NMR 31 P, which can be explain by the superposition of the two peaks in the same environment. The UV-visible diffuse reectance spectra (DRS) of HAp and Cu-apatite were illustrated in Fig.…”

Repair of segmental rabbit radial defects with Cu/Zn co-doped calcium phosphate scaffolds incorporating GDF-5 carrier

“…Physically, with increasing doping of Zn and Cu, the fraction of b-TCP increased (Table 1), presumably because these ions reduced the thermal stability of HA crystal cells and thereby induced their decomposition to b-TCP during sintering. 38,39 Another study also reported the formation of b-TCP during HA preparation in the presence of Zn ions. 40 Compared with HA, b-TCP is more soluble and more rapidly degradable.…”

Preparation and characterization of Pt nanoparticles supported on a Fe‐doped hydroxyapatite‐activated Vulcan XC72 composite material

“…These properties have been utilized in many applications such as optics, industrial pollution waste, biomedical science, radioactive, and catalysis . Khachani and coworkers successfully synthesized the iron exchanged when Fe 3+ ions are distributed in HAp in the aqueous medium, thereby increasing the activity of the catalyst.…”