A new copper-based supramolecular (β-cyclodextrins, β-CD) catalyst was synthesized and used for transesterification of Xanthium sibiricum Patr oil to biodiesel. This catalyst exhibited high activity (88.63% FAME yield) in transesterification under the ratio of methanol-oil: 40 : 1; catalyst dosage: 8 wt.%; reaction temperature: 120°C; and reaction time: 9 h. The XRD, SEM, TEM, XPS, and BET characterization results showed that Cu-β-CD catalyst was amorphous and had clear mesoporous structure (17.2 nm) as compared with the native β-CD. This phenomenon is attributed to the coordination of Cu and β-CD.

中文翻译：

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新型铜基超分子催化剂的合成及其对生物柴油生产的催化性能

合成了一种新型的铜基超分子（β-环糊精，β -CD）催化剂，并将其用于西伯利亚黄柏油对生物柴油的酯交换反应。该催化剂在甲醇-油∶40∶1的比例下在酯交换反应中显示出高活性（FAME产率为88.63％）。催化剂用量：8重量％；反应温度：120℃；反应时间：9小时。XRD，SEM，TEM，XPS和BET表征结果表明，Cu - β -CD催化剂为非晶态，与天然β -CD相比具有清晰的介孔结构（17.2 nm）。该现象归因于Cu与β -CD的配位。