MgO/Carbon nanocomposites synthesized in molten salts for catalytic isomerization of glucose to fructose in aqueous media  

作　　者：Yuchao Shao Dong-Yang Zhao Wenjing Lu Yuyang Long Weicheng Zheng Jun Zhao Zhong-Ting Hu 

机构地区：[1]College of Environment,Zhejiang University of Technology(ZJUT),Hangzhou,310014,China [2]HKBU Institute of Research and Continuing Education,Shenzhen,518057,China [3]Institute of Bioresource and Agriculture,Department of Biology,Hong Kong Baptist University,Hong Kong SAR,China [4]School of Environment,Tsinghua University,Beijing,100084,China [5]Industrial Catalysts Institute of ZJUT,Hangzhou,310014,China [6]Zhejiang Provincial Key Laboratory of Solid Waste Treatment and Recycling,Instrumental Analysis Center,School of Environmental Science and Engineering,Zhejiang Gongshang University,Hangzhou,310012,China [7]Hangzhou Research Institute of China Coal Technology&Engineering Group,Hangzhou,311201,China

出　　处：《Green Chemical Engineering》2022年第4期359-366,共8页绿色化学工程（英文）

基　　金：supported by the National Natural Science Foundation of China(NSFC 21908184);Hong Kong Environment and Conservation Fund(ECF 2020–46);support from the HKBU RCSGT1,RC-SGT2/19–20/SCI/009 and Natural Science Foundation of Zhejiang Province(Y19B070005).

摘　　要：Isomerization of glucose into fructose has always been an important step in the biorefining process.This study synthesized a novel Mg-decorated carbonaceous catalyst by molten salt method for the application of glucose isomerization.The morphology of carbon microspheres was formed with high specific surface area and pore volume.The effects of Mg loading,catalyst dosage,reaction temperature,and reaction time were investigated and optimized.The highest fructose yield of 34.58%and fructose selectivity of 81.17%were achieved by the catalyst named Mg(100mg)/Carbon at hydrothermal temperature of 100℃ with reaction time of 1.5-2 h,showing the superiority of the catalyst.The results of recycling tests indicated Mg(100mg)/Carbon has good recyclability and can restore its activity after a simple regeneration.And the possible mechanism of glucose isomerization by Mg(100mg)/Carbon was indicated.This study provided a new method for overcoming the difficulty of high energy barrier required for glucose isomerization in the biorefining process.

关 键 词：Glucose isomerization Heterogeneous catalyst Molten salt method Magnesium HYDROTHERMAL 

分 类 号：TQ281[化学工程—有机化工] TQ426