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| 六元瓜环修饰的银对染料的催化氧化性能 |
| Cucurbit[6]uril Modified Silver on the Catalytic Oxidation Property of Dyes |
| Received:October 26, 2015 |
| DOI： |
| 中文关键词: 材料化学 六元瓜环 花团状银 催化氧化 染料 |
| 英文关键词: material chemistry cucurbit[6]uril clocklike silver catalytic oxidation dyes |
| 基金项目:国家自然科学基金项目(21272045)、贵州大学SRT基金(No.(2015) 159) |
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| 中文摘要: |
| 以六元瓜环(Q[6])为修饰剂，抗坏血酸为还原剂，采用化学还原法制备了Q[6]修饰的银。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，修饰剂Q[6]用量为0.4 mmol时，获得的银呈直径为2 μm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%。 |
| 英文摘要: |
| 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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