In:
Sustainable Environment Research, Springer Science and Business Media LLC, Vol. 29, No. 1 ( 2019-12)
Abstract:
Photocatalyst of hydroxyapatite–nano TiO 2 (HAp- n TiO 2 ) was prepared from phosphatation of calcined cockle ( Anadara granosa ) shells followed by dispersion of nano TiO 2 powder into HAp precipitate and calcination at 400 °C for 2 h. The prepared material was characterized using X-ray diffraction, scanning electron microscope–energy dispersive X-ray spectrophotometry, gas sorption analysis, and UV-Vis diffuse reflectance spectrophotometry. The photocatalytic activity of the material was evaluated for methyl violet degradation over photocatalysis and photooxidation mechanism. The results showed that the homogeneous dispersion of TiO 2 in the HAp- n TiO 2 composite was achieved, as seen in the X-ray diffraction analysis, diffuse reflectance UV-Vis, and gas sorption analyses. The physicochemical and photocatalytic character of the composite exhibited the positive role of HAp as TiO 2 support in enhancing the photocatalytic activity with a higher turnover number and reusability property than that of pure TiO 2 . It was also noted that the HAp- n TiO 2 composite demonstrated rapid methyl violet degradation over photooxidation rather than by photocatalytic mechanism.
Type of Medium:
Online Resource
ISSN:
2468-2039
DOI:
10.1186/s42834-019-0034-3
Language:
English
Publisher:
Springer Science and Business Media LLC
Publication Date:
2019
detail.hit.zdb_id:
2641138-6
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