The influence of preparation parameters on the photocatalytic performance of mixed bismuth titanate-based nanostructures


Pirgholi-Givi G., Farjami-Shayesteh S., Azizian-Kalandaragh Y.

PHYSICA B-CONDENSED MATTER, cilt.575, 2019 (SCI İndekslerine Giren Dergi) identifier identifier

Özet

The interesting results about the influence of the preparation technology on the structural properties, surface morphology, and consequent photocatalytic activity of the mixed heterogeneous bismuth titanate-based (BTO) nanostructures have been reported. The XRD, TGD/DTA, UV-Vis, EDX, SEM, and BET analyzes were used to investigate structural, thermal, optical properties, purity, surface morphology, surface and porosity areas. The results of the XRD of the samples prepared by microwave-assisted method(S1) confirms the formation of mixed crystalline phase of BiTi3O12 and Bi12TiO20 nanostructures and also the XRD results of the sample prepared by hydrothermal using autoclave system(S2) shows the formation of mixed crystalline phase of Bi4Ti3O12 and Bi2O3. The results of the photocatalytic activity of the prepared nanostructures showed that the S-1 nanostructure was able to remove 98% methylene blue in 28 min and S-2 nanostructure was able to remove 98% methylene blue in 40 min.