以六元瓜环(Q[6])为怱饰剂，抗坏血酸为还原剂，采用化学还原法制备了 Q[6]怱饰的银。用X射线粉末衍射、扫描电镜对产物进行结构和形貌表征，并研究了银催化氧化染料次甲基蓝和罗丹明B的性能。结果表明，怱饰剂Q[6]用量为0.4 mmol时，获得的银呈直径为2μm花团状结构，并且对罗丹明B和次甲基蓝具有较好的催化氧化效果，0.02 g/L花团状银在300 min内对罗丹明B和次甲基蓝的脱色率超过74.0%和78.0%。
Cucurbit[6]uril modified silver was prepared by chemical reduction method using cucurbit[6] uril as the modifier and ascorbic acid as a reducing agent. The structure and morphology of the product were characterized by X-ray diffraction and scanning electron microscope. And its catalytic performance in the oxidation of methylene blue and rhodamine B were studied. The results showed that the silver following the modification had special of clocklike morphology with a diameter of 2 μm when 0.4 mmol cucurbit[6]uril was used. Catalyzed by 0.02 g/L clocklike silver, more than 74.0% of rhodamine-B and 78.0%of methylene blue could be oxidized in 300 min with H2O2.
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