Scanning electron microscopic (SEM) images of raw Dowex 5WX8 polymeric resin (a), pristine SIR (b, c), RhB saturated SIR (d), and Fourier transform infrared (FT-IR) spectra of raw Dowex 5WX8 polymeric resin (i), pristine SIR (ii), and RhB saturated SIR (iii) (e).