| 超声辅助生物法还原法制备Ag/ZrO_2及其催化研究; Ultrasonic-assisted biosynthesis of Ag/ZrO_2 and its catalysis research | |
| 汪静 ; 王慧 ; 景孝廉 ; 黄加乐 ; 孙道华 ; 李清彪 | |
| 2015-03-23 | |
| 关键词 | 工业催化 超声辅助生物还原 银催化剂 1 2-丙二醇 选择氧化 industrial catalysis ultrasonic-assisted biosynthesis silver catalyst 1 2-propane glycol selective oxidation |
| 英文摘要 | 为了实现丙酮醛的经济、“绿色“规模化生产,低温条件下具有高催化性能的催化剂的研究成为关键。以芳樟叶浸出液作为还原剂,在超声辅助下,制备了用于1,2-丙二醇选择氧化制备丙酮醛的反应的Ag/zrO2催化剂。考察了催化反应温度和催化剂制备条件对其反应性能的影响,并采用Xrd、TEM、uV-VIS drS实验技术对所制备的催化剂进行了表征。实验结果表明:在银的理论负载量为9%(质量分数)、芳樟叶浸出液质量浓度为0.05g/Ml、70 W功率下超声60MIn、450℃焙烧2.0H条件下得到的Ag/zrO2催化剂可获得最佳催化反应性能,在340℃,1,2-丙二醇的转化率达到96.8%,丙酮醛的选择性达到73.3%。; In order to produce methylglyoxal economically and environmental-friendly in a large scale,catalysts with high performance in low temperatures are of greatest importance.Ag/ZrO2 catalysts for the selective oxidation of 1,2-propanediol to methylglyoxal with molecular oxygen were prepared by an ultrasonic-assisted biosynthesis with cinnamomum camphoratrees extract.Influence of reaction temperature and preparation conditions of the catalysts on the catalytic activity were investigated.The catalysts were characterized by XRD,TEM and UV-Vis DRS techniques.The results show that the optimum preparation conditions are as follows:silver loading is 9%,leachate concentration is 0.05g·mL-1,ultrasound power is 70 W,ultrasound time is 60 min,calcination temperature is 450 ℃,calcination time is 2h.The Ag/ZrO2 catalyst prepared under above optimum conditions demonstrates good performance at 340 ℃,the conversion of 1,2-propane glycol is 96.8% and the selectivity of methyglyoxal is73.3%.; 国家自然科学基金资助项目(21036004;21106117); 高等学校博士学科点专项科研基金资助项目(20110121120018) |
| 语种 | zh_CN |
| 内容类型 | 期刊论文 |
| 源URL | [http://dspace.xmu.edu.cn/handle/2288/107125]  |
| 专题 | 化学化工－已发表论文 |
| 推荐引用方式 GB/T 7714 | 汪静,王慧,景孝廉,等. 超声辅助生物法还原法制备Ag/ZrO_2及其催化研究, Ultrasonic-assisted biosynthesis of Ag/ZrO_2 and its catalysis research[J],2015. |
| APA | 汪静,王慧,景孝廉,黄加乐,孙道华,&李清彪.(2015).超声辅助生物法还原法制备Ag/ZrO_2及其催化研究.. |
| MLA | 汪静,et al."超声辅助生物法还原法制备Ag/ZrO_2及其催化研究".(2015). |
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