Yamaguchi Daizo, Watanabe Koki, Fukumi Shinya
Department of Mechanical Engineering, National Institute of Technology, Tsuyama College, 624-1 Numa, Tsuyama-City, Okayama 708-8509, Japan.
Sci Rep. 2016 Feb 9;6:20327. doi: 10.1038/srep20327.
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.
碳基固体酸催化剂在广泛的应用中显示出巨大潜力，并且已通过简单工艺成功合成。磁性可分离介孔碳复合材料也具有巨大潜力，尤其是在分离和吸附技术方面。然而，现有技术一直无法生产出磁性可分离介孔固体酸催化剂，因为尚未找到合适的前驱体。在此，我们描述了一种由新开发的介孔碳 - γ - Fe₂O₃纳米颗粒复合材料合成的磁性可分离介孔固体酸催化剂。该材料在微晶纤维素水解中表现出与纤维素衍生的传统催化剂相当的酸密度和催化活性。由于它具有磁性可分离性，这种材料可以很容易地回收和再利用，有可能减少其应用的工业过程对环境的影响。
