Fractionation of corn stover into cellulose, hemicellulose and lignin using a series of ionic liquids

Efficient Removal of Cationic and Anionic Dyes from Aqueous Solution Using Cellulose-g-p(AA-co-AM) Bio-Adsorbent

“…3). The raw cotton spectrum exhibited distinctive peaks at 3353,2908,1435,1376,1115,1066, and 896 cm -1 , which were the characteristic peaks of cellulose molecules (Liu et al 2015;Zhang et al 2015). After graft copolymerization modification, the characteristic peak at 3353 cm -1 shifted to a broadened peak at 3426 cm -1 , which was attributed to the N-H stretching vibration and overlapping of O-H bonds.…”

Characterization and Application of Magnetic Biochars from Corn Stalk by Pyrolysis and Hydrothermal Treatment

“…Figure 1a shows the FTIR spectra of corn stalk and the prepared materials. In the spectrum for C-H and FeC-H, overlapping bands at 1430 to 1420 cm -1 , 1375 cm -1 , and 1250 cm -1 were assigned to the finger print regions of lignin (-O-CH3 deformation vibration), cellulose (-CH deformation vibration), and hemicellulose (C-O stretching vibration) (Zhang et al 2015;Khandanlou et al 2016). Compared with raw corn stalk precursor, the diminishing intensity of those characteristic bands implied that some part of hemicellulose, cellulose, and lignin in C-H and FeC-H were degraded during hydrothermal treatment.…”

Pyrrolidinium Ionic Liquids as Effective Solvents for Lignin Extraction and Enzymatic Hydrolysis of Lignocelluloses

“…Generally, pretreatment and acidolysis of biomass were processed with an ionic liquid containing acidic catalyst. In our previous study (Zhang et al 2015), the yield of reducing sugar was 13.56% with 1-H-3-methyl-imidazolium hydrogen sulfate/H2O pretreatment assisted with ultrasound irradiation at 70 °C for 3 h.…”