Abstract
Silica from rice husk ash was immobilized with sulfamic acid to form strong solid acid catalyst labeled as RHANS (RH = Rice Husk). The spectroscopic evidence confirms that the sulfamic acid was heterogenized onto silica. The XPS with the elemental analysis shows the presence of C, N, S, O, and Si onto RHANS. The FT-IR spectra supported both XPS and elemental analysis via showing the presence of NH2, SO2, CH2, and Si-O-Si functional groups which include the elements showing by XPS and elemental analysis. The RHANS had 139 m2 g−1 as a specific surface area with thermal stability reached to 252°C according to the TGA. The AFM, TEM and SEM showed that the RHANS had nano shape. The RHANS was efficient catalyst for cellulose hydrolysis to glucose. Approximately 96% of glucose was formed with in 2 h at 140°C over RHANS. The repeatable catalyst was stable during the cellulose hydrolysis without a significant loss of its catalytic activity.
Sign-in/Register to access full text options 
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a callDisclaimer: All third-party content on this website/platform is and will remain the property of their respective owners and is provided on "as is" basis without any warranties, express or implied. Use of third-party content does not indicate any affiliation, sponsorship with or endorsement by them. Any references to third-party content is to identify the corresponding services and shall be considered fair use under The CopyrightLaw.
