六元瓜环修饰的铜催化剂活性对比  

Comparison of the catalytic activity of cucurbit[6]uril modified of copper

作　　者：赵安婷[1] 高丽[1] 

机构地区：[1]贵州大学化学与化工学院,贵州贵阳550025

出　　处：《化学研究与应用》2017年第1期127-131,共5页Chemical Research and Application

基　　金：国家自然科学基金项目(21272045)资助;贵州大学SRT基金((2015)159资助项目

摘　　要：采用液相化学还原法,将不同摩尔比的五水硫酸铜和修饰剂六元瓜环(Q[6])溶液混合后,经抗坏血酸还原获得系列六元瓜环修饰的铜。采用X射线粉末衍射、扫描电镜和紫外-可见光谱对产物进行结构和形貌表征以及催化性能评价。结果表明,修饰剂用量对产物形貌和性质有较大影响,Q[6]用量为0.4 mmol时,获得的产物为直径2.0μm花团状铜,其催化性能最佳,反应速率较快,0.08 g/L花团状铜在100 min内对染料罗丹明B和次甲基蓝的脱色率超过86%。Put different molar ratios of copper（ II） sulfate pentahydrate and modifier cucurbit[6]uril into mixing,using ascorbic acid as reducing agent,the Q[6]modified coppers were prepared by the liquid phase chemical reduction method.The structure,morphology and catalytic performance of the products were characterized by X-ray powder diffraction,scanning electron microscope and UVvisible spectrum.The results showed that the morphology of the product has a great influence on the different dosage of modifier,when the amount of Q[6]is 0. 4mmol,the product is flowers like copper with diameter of 2. 0 μm,and the catalytic oxidation performance is the best,and the reaction rate is fast,in 100 min,0. 08 g / L of flowers like copper made the decolorization rate more than 86%on dye rhodamine B and methylene blue.

关 键 词：六元瓜环 化学还原法 花团状铜 催化氧化 

分 类 号：O614.12[理学—无机化学]