Fig. 1From: Carbonized lignosulfonate-based porous nanocomposites for adsorption of environmental contaminantsa FT-IR spectra, b Raman spectra, c TGA curves, and d SEM and TEM images and elemental compositions of lignosulfonate (LS) and LS-derived carbon products – carbon spheres (CS) and nanographene oxide (nGO)Back to article page