Synthesis of MgO-doped ordered mesoporous carbons by Mg^(2+)-tannin coordination for efficient isomerization of glucose to fructose

作     者：Junyan Fu Feng Shen Xiaoning Liu Xinhua Qi Junyan Fu;Feng Shen;Xiaoning Liu;Xinhua Qi

作者机构：College of Environmental Science and EngineeringNankai UniversityNo.38Tongyan RoadJinnan DistrictTianjin300350China Agro-Environmental Protection InstituteMinistry of Agriculture and Rural AffairsNo.31Fukang RoadNankai DistrictTianjin300191China 

出 版 物：《Green Energy & Environment》 (绿色能源与环境（英文版）)

年 卷 期：2023年第8卷第3期

页      面：842-851页

核心收录：

学科分类：080703[工学-动力机械及工程] 081705[工学-工业催化] 08[工学] 0817[工学-化学工程与技术] 0807[工学-动力工程及工程热物理] 080502[工学-材料学] 0805[工学-材料科学与工程（可授工学、理学学位）] 

基　　金：supported by the Natural Science Fund for Distinguished Young Scholars of Tianjin (17JCJQJC45500) the National Natural Science Foundation of China (NSFC,21876091 and 22178181) Tianjin Municipal Science and Technology Project (18PTZWHZ00150) 

主　　题：Glucose Fructose Isomerization Porous carbon Biomass Catalysis 

摘      要：In-situ MgO-doped ordered mesoporous carbon(OMC@MgO)was fabricated by formaldehyde-free self-assembly method,in which biomass-derived tannin was used as carbon precursor replacing fossil-based phenolics,Mg^(2+)as both cross-linker and precursor of catalytic *** to~20 wt% MgO could be doped in the carbon skeleton with good dispersion retaining well-ordered mesoporous structures,while more MgO content(35 wt%)led to the failing in the formation of ordered mesoporous *** OMC@MgO possessed a high specific surface area(298.8 m^(2) g^(-1)),uniform pore size distribution(4.8 nm)and small crystallite size of MgO(1.73 nm)due to the confinement effect of ordered mesoporous *** OMC@MgO as the heterogeneous catalyst,a maximum fructose yield of 32.4% with a selectivity up to 81.1%was achieved from glucose in water(90℃,60 min),which is much higher than that obtained using the MgO doped active carbon via conventional post-impregnation method(26.5%yield with 58.3% selectivity).Higher reaction temperature(90℃)resulted in decrease of selectivity due to the formation of *** designed OMC@MgO displayed tolerant to high initial glucose concentrations(10 wt%)and could remain good recyclability without significant loss of activity for three cycles.