北华大学学报（自然科学版）2017，Vol.18Issue(2)：270-276,7.DOI:10.11713/j.issn.1009-4822.2017.02.029
磁性氧化铁/SO2-4生物质基固体酸催化剂合成及特性
Synthesis and Properties of Magnetic Ferric Oxide/SO2-4 Biomass-based Solid Acid Catalyst
摘要
Abstract
Two kinds of magnetic ferric oxide particles were prepared through glycol and sodium sulfite methods.Magnetic ferric oxide/SO2-4 biomass-base solid acid catalysts were synthesized via loading the magnetic ferric oxide particles into the sulfuric acid treated biomass-base precursor.The catalyst activities,such as surface acid amount,magnetic response properties and reducing sugar yield (DNS method) from catalytic hydrolyzed micro-crystalline cellulose were evaluated.The structures of the catalyst were characterized by XRD,FT-IR,Raman,SEM and VSM.The results showed that the catalyst activity and structure are quite different from different synthesis methods.Compared with the catalyst prepared from PEG method,the acid density for 1.13mmol/g,reducing sugar yield for 30%,carbon content of the catalyst by the sodium sulfite method are much higher,and the cycle of preparation process is moderate(2970min).At the same time,the magnetic Ferric Oxide load particles amount is also higher,the specific surface area is larger,channel structure is richer.VSM analysis showed that the catalyst prepared by polyethylene glycol method was ferromagnetic material,and the catalyst prepared by sodium sulfite was ferrous magnetic materials.关键词
生物质/磁性氧化铁/固体酸催化剂/结构表征/催化特性Key words
biomass/magnetic ferric oxide/solid acid catalyst/structure characterization/catalytic properties分类
能源科技引用本文复制引用
李学琴,陈尧,李翔宇,时君友,雷廷宙,段喜鑫,陈高峰..磁性氧化铁/SO2-4生物质基固体酸催化剂合成及特性[J].北华大学学报（自然科学版）,2017,18(2):270-276,7.基金项目
国家林业局"948"项目(2014-4-28) （2014-4-28）
国家自然科学基金项目(21376241) （21376241）
国家林业公益性行业科研重大专项(201504502) （201504502）
国家科技支撑计划项目(2014BAD02B05) （2014BAD02B05）
吉林省秸秆综合利用技术创新平台专项资金项目(吉高平台字[2014]C-1) （吉高平台字[2014]C-1）
河南省科技攻关计划项目(162102210144). （162102210144）
