中国沼气2026，Vol.44Issue(1)：18-25,8.DOI:10.20022/j.cnki.1000-1166.2026010018
光催化预处理耦合Cu-Zn共掺杂TiO2:玉米秸秆定向转化制甲醇技术研究
Photocatalytic Pretreatment Coupled with Cu-Zn Co-doped TiO2:A Study on the Directed Conversion of Corn Straw to Methanol Catalytic Conversion of Corn Straw to Methanol
摘要
Abstract
To achieve efficient bio-methanol production under mild conditions,this study developed a two-step strategy u-sing corn straw as the feedstock.First,corn straw was converted to glucose through a process that integrated photocatalysis with cellulase hydrolysis.Subsequently,the glucose in the enzymatic hydrolysate was photocatalytically converted to metha-nol at room temperature and atmospheric pressure using a Cu-Zn co-doped TiO2(CZ-TiO2)photocatalyst.The CZ-TiO2 cat-alyst was successfully synthesized via hydrothermal and impregnation methods.Characterization by SEM,XRD,FTIR,and XPS confirmed the successful incorporation of Cu and Zn into the TiO2 lattice,which effectively broadened the light absorp-tion range and enhanced the separation efficiency of photogenerated electron-hole pairs.Under the conditions of 200 mg of CZ-TiO2,1 mL enzymatic hydrolysate,1 mL deionized water,and 8 mL acetonitrile,with 24 h of illumination,the metha-nol yield reached 5.99％,which is nearly 54 times higher than that of undoped TiO2(0.11％).The study demonstrates that the synergistic effect of Cu and Zn effectively modulates the electronic structure of TiO2,promoting the cleavage of C-C bonds in glucose and its directed reduction.关键词
TiO2/光催化/CuZn共掺杂/玉米秸秆/甲醇Key words
TiO2/photocatalysis/Cu-Zn co-doped/corn straw/methanol分类
农业科技引用本文复制引用
尤宏梅,苏小红,陆佳,张婷婷,林瑞安,周闯,刘伟..光催化预处理耦合Cu-Zn共掺杂TiO2:玉米秸秆定向转化制甲醇技术研究[J].中国沼气,2026,44(1):18-25,8.基金项目
黑龙江省科学院青年创新基金项目(QNCX2024NY04) （QNCX2024NY04）
黑龙江省重点研发项目(23ZX02C04). （23ZX02C04）
