Preparation and investigation of highly selective solid acid catalysts with sodium lignosulfonate for hydrolysis of hemicellulose in corncob.

ABSTRACT: Saccharification of lignocellulose is a necessary procedure for deconstructing the complex structure for building a sugar platform that can be used for producing biofuel and high-value chemicals. In this study, a carbon-based solid acid catalyst derived from sodium lignosulfonate, a waste by-product from the paper industry, was successfully prepared and used for the hydrolysis of hemicellulose in corncob. The optimum preparation conditions for the catalyst were determined to be carbonization at 250 °C for 6 h, followed by sulfonation with concentrated H₂SO₄ (98%) and oxidation with 10% H₂O₂ (solid-liquid ratio of 1 : 75 g mL^-1) at 50 °C for 90 min. SEM, XRD, FT-IR, elemental analysis and acid-base titration were used for the characteri

SUBMITTER: Li X 

PROVIDER: S-EPMC9078951 | biostudies-literature | 2018 Mar

REPOSITORIES: biostudies-literature