Developing heterogeneous catalysis for cellulose depolymerization from metal-organic frameworks

Name: Pernadi, Niza Lian

Organization : Chulalongkorn University. Faculty of Science

Name: Preecha Kittikhunnatham

Organization : Chulalongkorn University. Faculty of Science

Email : preecha.ki@chula.ac.th

LCSH: Butene

LCSH: Ethanol -- Derivatives

LCSH: Catalysts -- Testing

LCSH: Zeolites

Abstract: Open burning of agricultural residues significantly contributes to air pollution by emitting toxic gases like CO, NOx, and PAHs, as well as greenhouse gases like CO₂, driving climate change. A sustainable solution is converting biomass waste (40–45% cellulose) into valuable chemicals via cellulose depolymerization. Traditionally, this process uses mineral acid catalysts, but their corrosiveness and hazardous waste make them impractical. To overcome this, we are developing NU-1000-based MOF catalysts, known for their high surface area, thermal stability, chemical stability, and modifiable surfaces. This presentation highlights the synthesis of NU-1000 and sulfonated NU-1000-SO3H, along with their catalytic performance in breaking β- 1,4 glycosidic bonds using cellobiose as a model. X-ray diffraction (XRD) and energy dispersive X-ray spectroscopy (EDS) analyses confirm that the crystallinity of NU-1000 is preserved after the sulfonation process, with sulfur content measured at approximately 13.05 at.%. Furthermore, nuclear magnetic resonance (NMR) analysis demonstrated that NU-1000-SO3H achieves approximately 77% of cellobiose conversion, while pristine NU-1000 produced other by products including fructose and lactic acid under the same reaction conditions. The NMR results also indicate that NU-1000-SO3H exhibits significantly higher selectivity for the depolymerization of cellobiose to glucose compared to pristine NU-1000

King Mongkut's University of Technology North Bangkok. Central Library

Address: BANGKOK

Email: library@kmutnb.ac.th

Created: 2568

Modified: 2025-10-22

Issued: 2025-10-22

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BibliograpyCitation : In The Chemical Society of Thailand under the Patronage of Professor Dr. Her Royal Highness Princess Chulabhorn Krom Phra Srisavangavadhana and Suranaree University of Technology. Institute of Science. School of Chemistry. Pure and Applied Chemistry International Conference 2025 (PACCON 2025) (pp.123-129). Bangkok : The Chemical Society of Thailand under the Patronage of Professor Dr. Her Royal Highness Princess Chulabhorn Krom Phra Srisavangavadhana in association with the School of Chemistry, Institute of Science, Suranaree University of Technology, 2025

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