碱光催化预处理对玉米秸秆酶解糖化影响的研究  

Study on the effect of alkali photocatalytic pretreatment on enzymatic saccharification of corn stover

作　　者：胡建军[1,2] 何志 张全国[1,2] 党钾涛 赵淑蘅 Hu Jianjun;He Zhi;Zhang Quanguo;Dang Jiatao;Zhao Shuheng(College of Mechanical and Electrical Engineering,Henan Agricultural University,Zhengzhou 450002,China;Key Laboratory of New Materials and Facilities for Rural Renewable Energy,Henan Agricultural University,Zhengzhou 450002,China)

机构地区：[1]河南农业大学机电工程学院,河南郑州450002 [2]河南农业大学农业农村部可再生能源新材料与装备重点实验室,河南郑州450002

出　　处：《可再生能源》2024年第12期1594-1601,共8页Renewable Energy Resources

基　　金：国家重点研发计划(2018YFE0206600);国家重点研发计划(2021YFD1700900);河南省高校科技创新团队支持计划(20IRTSTHN006)。

摘　　要：文章以玉米秸秆为研究对象,采用硼氢化钠还原法制备了黑二氧化钛(R-TiO_(2))光催化剂,通过不同预处理结果对比,确定选用碱光催化预处理技术。以还原糖产量和玉米秸秆主要组分为评价指标,探究不同光催化剂浓度、反应时间、H_(2)O_(2)浓度和NaOH浓度对秸秆预处理效果的影响。通过FT-IR,XRD和SEM分析表明,与其他预处理技术相比,经过碱光催化预处理后,玉米秸秆的物理性能和微观结构发生了明显变化,木质素去除率有效提升,有利于玉米秸秆的后续酶解。The article focuses on corn stover as the research subject and prepares black titanium dioxide(R-TiO_(2))photocatalyst using the sodium borohydride reduction method.Through comparisons of different pretreatment results,the alkali photocatalytic pretreatment technology was selected.With the yield of reducing sugar and the main components of corn stalks as evaluation indicators,the study explores the impact of various factors,including photocatalyst concentration,reaction time,H_(2)O_(2) concentration,and NaOH concentration,on the pretreatment effectiveness.The FT-IR,XRD,and SEM analyses show that,compared with other pretreatment methods,the physical properties and microstructure of corn stover undergo significant changes after alkaline photocatalytic pretreatment,the lignin removal rate is effectively improved is effectively improved,which favors the subsequent enzymatic hydrolysis of corn stover.

关 键 词：玉米秸秆 黑二氧化钛 光催化 碱性条件 预处理 

分 类 号：TK6[动力工程及工程热物理—生物能] S216.2[农业科学—农业机械化工程]