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Caption : rietveld refinement to xrd paterns of fe2tio5 fibers calcined at 500_ 6 h, 550_ 4 h and 600 ºc _3 h

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Caption : n2 adsorption–desorption isotherms for samples 550 °c_3 h, 600 °c_3 h, 650 °c_3 h, 700 °c_3 h and 750 °c_3 h

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Caption : pore size distribution curves of samples calcined at 550 °c_3 h, 650 °c_3 h, 700 °c_3 h and 750 °c_3 h

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Caption : optical absorbance spectra of different psb calcined nanofibers 

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Caption : a-e plots of (f(r)hv)2 versus photon energy (hv) for samples 500 ºc_3 h, 550 ºc_3 h, 650 ºc_3 h, 700 ºc_3 h, and 750 ºc_3 h