Generation of Acid Sites in Nanostructured KIT-6 Using Different Methods to Obtain Efficient Acidic Catalysts for Glycerol Acetalization to Solketal DOI Creative Commons
Ewa Janiszewska, Jolanta Kowalska‐Kuś,

Justyna Wiktorowska

et al.

Molecules, Journal Year: 2024, Volume and Issue: 29(23), P. 5512 - 5512

Published: Nov. 21, 2024

This study explored the preparation of pure silica KIT-6, as well KIT-6 materials with an enhanced concentration surface OH groups through aluminum incorporation or NH4F treatment. These various contents were subsequently modified via post-synthesis grafting sulfonic using 3-mercaptopropyltrimethoxysilane a precursor, followed by oxidation to introduce acidic sites. The catalysts thoroughly characterized XRD, nitrogen adsorption/desorption, SEM-EDS, TEM, and FT-IR techniques confirm their structural chemical properties. catalytic activity acid-functionalized mesoporous silicas structure was further evaluated in acetalization glycerol produce solketal. results demonstrated significant influence group site density on performance, KIT-6_F_SO3H showing highest efficiency glycerol-to-solketal conversion. provides valuable insights into design efficient systems for valorization biodiesel-derived high-value chemicals, offering sustainable approach waste utilization.

Language: Английский

From waste to energy: Comprehensive understanding of the thermal-chemical utilization techniques for waste tire recycling DOI
Shoujun Wang,

Mingqian Cheng,

Ming Xie

et al.

Renewable and Sustainable Energy Reviews, Journal Year: 2025, Volume and Issue: 211, P. 115354 - 115354

Published: Jan. 15, 2025

Language: Английский

Citations

3
A Rapid and Green Method for the Preparation of Solketal Carbonate from Glycerol DOI Creative Commons
Sanjib Kumar Karmee, Sreedhar Gundekari, Louis C. Muller

et al.

Reactions, Journal Year: 2025, Volume and Issue: 6(1), P. 15 - 15

Published: Feb. 13, 2025

Glycerol is a biogenic waste that generated in both the biodiesel and oleo-chemical industries. The value addition of surplus glycerol utmost importance for making these industries economically profitable. In line with this, converted into carbonate, potential candidate industrial production polymers biobased non-isocyanate polyurethanes. addition, can also be solketal, which protected form primary hydroxyl functional group. this contribution, we developed microwave-assisted solvent catalyst-free method converting solketal carbonate. Under conventional heating conditions, reaction dimethyl carbonate resulted 70% 48 h. However, under microwave heating, 90% was obtained just 30 min. From perspective sustainability green chemistry, biomass-derived heterogeneous catalysts are gaining importance. Therefore, project, several catalysts, such as molecular sieves (MS, 4Å), Hβ-Zeolite, Montmorillonite K-10 clay, activated carbon from groundnut shell (Arachis hypogaea), biochar prepared pyrolysis sawdust, silica gel, were successfully used carbonyl transfer reaction. thoroughly characterized by 1H NMR, 13C IR, MS. presented here facile, clean, environmentally benign, it eliminates use complicated procedures, toxic solvents, catalysts.

Language: Английский

Citations

0
Acetalization of glycerol to solketal over Musa acuminata leaf-derived acid functionalized catalyst DOI

D. Rhithuparna,

Bushra Saad,

Manya Mridul

et al.

Chemical Engineering Journal, Journal Year: 2025, Volume and Issue: unknown, P. 163259 - 163259

Published: April 1, 2025

Language: Английский

Citations

0
Generation of Acid Sites in Nanostructured KIT-6 Using Different Methods to Obtain Efficient Acidic Catalysts for Glycerol Acetalization to Solketal DOI Creative Commons
Ewa Janiszewska, Jolanta Kowalska‐Kuś,

Justyna Wiktorowska

et al.

Molecules, Journal Year: 2024, Volume and Issue: 29(23), P. 5512 - 5512

Published: Nov. 21, 2024

This study explored the preparation of pure silica KIT-6, as well KIT-6 materials with an enhanced concentration surface OH groups through aluminum incorporation or NH4F treatment. These various contents were subsequently modified via post-synthesis grafting sulfonic using 3-mercaptopropyltrimethoxysilane a precursor, followed by oxidation to introduce acidic sites. The catalysts thoroughly characterized XRD, nitrogen adsorption/desorption, SEM-EDS, TEM, and FT-IR techniques confirm their structural chemical properties. catalytic activity acid-functionalized mesoporous silicas structure was further evaluated in acetalization glycerol produce solketal. results demonstrated significant influence group site density on performance, KIT-6_F_SO3H showing highest efficiency glycerol-to-solketal conversion. provides valuable insights into design efficient systems for valorization biodiesel-derived high-value chemicals, offering sustainable approach waste utilization.

Language: Английский

Citations

0