Highly efficient isomerization of glucose to fructose over Sn-doped silica nanotube  

作　　者：Yajiao Cui Zhi Yang Xiongtao Hu Shufei Yang Armin Rezayan Tianliang Lu Zhiyong Chen Yongsheng Zhang 

机构地区：[1]School of Chemical Engineering,Zhengzhou University,Zhengzhou 450001,China [2]School of Mechanical and Power Engineering,Zhengzhou University,Zhengzhou 450001,China [3]Henan Key Laboratory of Green Manufacturing of Biobased Chemicals,Hongye Biological Technology Co.Ltd.Puyang,457000,China

出　　处：《Resources Chemicals and Materials》2024年第2期159-165,共7页资源化工与材料（英文）

基　　金：the National Natural Science Foundation of China(21802125;52074244);the Central Plains Science and Technology Innovation Leader Project(214200510006);Henan Outstanding Foreign Scientists,Workroom(GZS2018004)and the National Key R&D Program of China(2022YFC2104505);the Program of Henan Center for Oustanding Overseas Scientists(No.GZS2022007)for the financial support.

摘　　要：Isomerization of glucose to fructose is a fundamental and key intermediate process commonly included in the production of valuable chemicals from carbohydrates in biorefinery.Enhancement of fructose yield is a challenge.In this work,Sn-doped silica nanotube(Sn-SNT)was developed as a highly efficient Lewis acid catalyst for the selective isomerization of glucose to fructose.Over Sn-SNT,69.1%fructose yield with 78.5%selectivity was obtained after reaction at 110◦C for 6 h.The sole presence of a large amount of Lewis acid sites in Sn-SNT without Brønsted acid site is one of the reasons for the high fructose yield and selectivity.Otherwise,high density of SiOH groups in Sn-SNT can ensure the presence of SiOH groups near the Sn sites,which is important for the isomerization of glucose to fructose,leading to the high fructose yield and selectivity.Furthermore,the Sn-SNT is recyclable.

关 键 词：GLUCOSE FRUCTOSE Lewis acid ISOMERIZATION 

分 类 号：O64[理学—物理化学]