The data depicts the synthesis and use a Bi1.5ZnTa1.5O7 photocatalysts prepired via a sol gel method. The data follows the calcination of the sample to understand how the crystal structure evolves.

Figure 1 shows the BZT structure assuming random (a) or ordered solid solutions (b).Figure 2shows the TG/DTG profile of the as prepaired gel as it is heated from 25 to 1000∘C. Figure 3 shows the IES spectra of the gel as it is heated. Figure 4 shows the mass spectrum cures of the evolved gasses from the TGA experiment. Figure 5 shows the SEM micrographs of the gel after is has been heated at various temperatures. Figure 6 shows XRD patterns synthesised samples in comparison to known JCPDF cards. Figure 7 shows the Raman spectra of heated samples. Figure 8 shows the UV-Vis spectra of the prepaired samples. Figure 9 shows the uv-vis spectra of decomposed dye using BZT photocatalysts prepaired at various temperatures. Figure 10 shows density of states for ordered solid solutions.