Impact of pulping routes of rice straw on cellulose nanoarchitectonics and their behavior toward Indigo dye

Abstract This work deals with emphasizing the relation between particle dimension distribution of nanocellulose (PDD) particles its efficiency as stabilizing/adsorbent agent Indigo dye. In this respect, different pulping reagents were used in preparation Rice straw pulps precursors for nanocelluloses using acid hydrolysis and oxidizing agents [(KMnO 4 NH ) 2 S O 8 ] methods. The PDD was estimated by indirect method through processing TEM images software ImageJ. resulting also characterized X-ray diffraction (XRD) Fourier-transform infrared spectra (FTIR) together sulfate ester carboxyl contents. data showed effective role reagent on PDD. cellulose nanocrystals (CNCs) from NaOH-AQ pulp, longest crystal length (204.4 ± 107.8 nm) lowest diameter (6.7 2.3 nm), exhibited most stabilized suspension dye; however, highest adsorption capacity accompanied oxidized (Ox-NC) neutral RS pulp (4.98 1.6 90.5 3.14), COO content (476.46 μmol/g).