Au/C催化剂的制备及其对木质素模型化合物的催化氧化研究  

Preparation and Catalytic Oxidation Performance of Au/C Catalyst for Lignin Model Compound

作　　者：耿莉莉[1] 何伟[1] 魏婷[1] 周婷婷[1] 周瑞[1] 张宏喜[1] 

机构地区：[1]昌吉学院化学与应用化学系,昌吉831100

出　　处：《天然产物研究与开发》2017年第4期601-604,583,共5页Natural Product Research and Development

基　　金：国家自然科学基金(21663002);新疆维吾尔自治区高校科研计划(XJEDU2016S083);昌吉学院科研基金(2014YJYB007)

摘　　要：以酸处理后的活性炭为载体,采用浸渍法制备了活性炭负载的Au催化剂,研究了该催化剂对木质素模型化合物2-(2-甲氧基苯氧基)-1-苯基乙醇的催化氧化降解反应。结果表明,以甲醇为溶剂,氧气做氧化剂,当反应温度为150℃,反应压力为1.0 MP时,Au/C催化剂能较好的降解木质素模型化合物,转化率达到88%,所得主要产物为愈创木酚,并给出了其可能的催化氧化机理。The activated carbon-supported Au catalyst was prepared by the impregnation method using acid-treated acti- vated carbon as the support. The effects of this catalyst in the catalytic oxidative degradation of lignin model compound 2- （2-methoxyphenoxy）-1-phenyl ethanol were investigated. The results revealed that lignin model compound underwent catalytic oxidation to produce guaiacol as the primary product and its conversion yield could reach up to 88% at 150 ℃ and 1.0 MPa using methanol as solvent, oxygen as oxidant. A possible mechanism producing guaiacol was presented.

关 键 词：Au/C催化剂 木质素模型化合物 催化氧化 

分 类 号：TQ351[化学工程]