Abstract
Carbon-based solid acid catalysts have shown significant potential in a wide range of applications, and they have been successfully synthesized using simple processes. Magnetically separable mesoporous carbon composites also have enormous potential, especially in separation and adsorption technology. However, existing techniques have been unable to produce a magnetically separable mesoporous solid acid catalyst because no suitable precursors have been identified. Herein we describe a magnetically separable, mesoporous solid acid catalyst synthesized from a newly developed mesoporous carbon-γ-Fe2O3 nanoparticle composite. This material exhibits an equivalent acid density and catalytic activity in the hydrolysis of microcrystalline cellulose, to that of the cellulose-derived conventional catalyst. Since it is magnetically separable, this material can be readily recovered and reused, potentially reducing the environmental impact of industrial processes to which it is applied.
Highlights
Carbon-based solid acid catalysts have shown significant potential in a wide range of applications, and they have been successfully synthesized using simple processes
Since cello-oligosaccharides could not be completely removed from the reaction mixture when microcrystalline cellulose was used for the experiment, cellobiose has been used as a substrate to verify the efficiency of the reaction
Cellulose is a water-insoluble substrate of long-chain β-1,4 glucan composed of glucose monomers linked by β-1,4 glycosidic bonds
Summary
Carbon-based solid acid catalysts have shown significant potential in a wide range of applications, and they have been successfully synthesized using simple processes. We describe a magnetically separable, mesoporous solid acid catalyst synthesized from a newly developed mesoporous carbonγ-Fe2O3 nanoparticle composite This material exhibits an equivalent acid density and catalytic activity in the hydrolysis of microcrystalline cellulose, to that of the cellulose-derived conventional catalyst. A mesoporous magnetically separable MCNC-based solid acid catalyst (MCNC-SA) bearing SO3H, COOH, and OH surface functional groups and containing Fe2(SO4)3/γ -Fe2O3 nanoparticles in its carbon matrix is reported. This new catalyst offers significant performance advantages since its concentration of acid density and its catalytic activity, www.nature.com/scientificreports/. This paper discusses the measurement and analysis of the catalytic properties and activities of this novel material
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