离子液体调控合成AuPd纳米刺球及其催化性能  

Ionic Liquids-Modulated Synthesis and Catalytic Properties of Au Pd Nano-Acanthospheres

作　　者：赵晨晨 姚开胜[1] 张军[1] 李添锦 郭莹莹 ZHAO Chenchen;YAO Kaisheng;ZHANG Jun;LI Tianjin;GUO Yingying(Chemical Engineering & Pharmaceutics School,Henan University of Science & Technology,Luoyang 471023,China)

机构地区：[1]河南科技大学化工与制药学院

出　　处：《河南科技大学学报（自然科学版）》2019年第6期84-88,M0007,M0008,共7页Journal of Henan University of Science And Technology:Natural Science

基　　金：国家自然科学基金项目(U1504213)

摘　　要：在室温水溶液中,采用离子液体[C 4im]Cl调控合成了AuPd纳米刺球。采用多种表征技术对产品的形貌和结构进行了分析。研究结果表明:所制备的AuPd纳米刺球由0.5~1.0μm的球形颗粒组成。颗粒表面较为粗糙,有许多纳米级颗粒组成的尖刺,具有明显的微纳分级结构。同时,AuPd刺球在有机染料亚甲基蓝的降解过程中表现出良好的催化活性,整个反应过程仅需150 s,反应速率常数为0.017 4 s^-1,其催化活性是商用Pd/C催化剂的1.67倍。The AuPd nano-acanthospheres were controllably synthesized by the modulation of an ionic liquid[C4im]Cl in aqueous solution at room temperature.A variety of techniques were used to characterize and analyze the morphology and structures of the product.The results show that the prepared AuPd nano-acanthospheres are composed of spherical particles of 0.5~1.0μm.The surface of the product is relatively rough,and there are many spikes composed of nanometer-sized particles with obvious micro-nano hierarchical structures.At the same time,the prepared AuPd nano-acanthospheres show excellent catalytic activity for the degradation of organic dye methylene blue.The reaction are completely finished within only 2.5 min and the reaction rate constant is 0.017 4 s^-1,which is 1.78 times higher than that of commercial Pd/C catalyst.

关 键 词：离子液体 AuPd刺球 催化 亚甲基蓝降解 

分 类 号：TQ138.23[化学工程—无机化工]