Fig. 4From: ZnO-TiO2 doped polyacrylonitrile nano fiber-Mat for elimination of Cr (VI) from polluted waterRepresenting TEM images of a PAN n-fib@Mat, b PAN-ZnO n-fib@Mat, c PAN-ZnO-TiO2 n-fib@Mat, and d XRD pattern of ZnO and TiO2-ZnO nanoparticles immersed in n-fib@Mat. e FT-IR spectra of PAN n-fib@Mat, PAN-ZnO n-fibbMat, and PAN-ZnO-TiO2 n-fib@MatBack to article page