Role of thermal decomposition process in the photocatalytic or photoluminescence properties of BiPO polymorphs.

Thermal decomposition process was used to obtain modified photocatalytic and/or photoluminescence properties of bismuth phosphate polymorphs. The precursor BiPO , 0.7H O was synthesized by a coprecipitation route.

Influence of Sr-doping on structural, optical and photocatalytic properties of synthesized Ca(PO).

Well-crystallized Ca(PO) doped and un-doped nano-particles with the maximum strontium content (40 wt% Sr) followed by calcination at 800 °C for 3 h were synthesized via facile co-precipitation method. DTA/TGA, X-ray diffraction (XRD), energy dispersive scanning electron microscopy (SEM/EDX), UV-vis diffuse reflectance spectrum (UV-vis DRS), Raman spectroscopy and photoluminescence (PL) techniques were used for material characterization. The (XRD) patterns of as-synthesized Sr-doped Ca(PO) solid solution samples exhibited a systematic shift toward lower angles by possessing a single rhombohedral crystal structure without any secondary phases.