离子液体辅助制备多孔蠕虫Au及催化性能  

Ionic Liquids-assisted Fabrication and Catalytic Performances of Worm-like Porous Au

作　　者：李添锦 姚开胜[1] 尚清毅 王楠 张军[1] LI Tianjin;YAO Kaisheng;SHANG Qingyi;WANG Nan;ZHANG Jun(Chemical Engineering&Pharmaceutics School,Henan University of Science&Technology,Luoyang 471023,China;Luoyang Quality Metrology Inspection and Testing Centre,Luoyang 471000,China)

机构地区：[1]河南科技大学化工与制药学院,河南洛阳471023 [2]洛阳市质量计量检验测试中心,河南洛阳471000

出　　处：《河南科技大学学报（自然科学版）》2021年第1期100-104,I0007,共6页Journal of Henan University of Science And Technology:Natural Science

基　　金：国家自然科学基金项目(21673076,21576073);河南省科技攻关基金项目(192102210043);河南省高等学校青年骨干教师项目(2017GGJS066)。

摘　　要：室温条件下,在离子液体四丙基铵甘氨酸盐([N 3333][Gly])调控作用下,从水溶液中一步制备出多孔蠕虫Au微纳米材料。采用扫描电子显微镜(SEM)、透射电子显微镜(TEM)和X-射线衍射仪(XRD)对产物的形貌和结构进行了表征。研究结果表明:制备的多孔蠕虫Au由大量粒径为6~12 nm的Au纳米粒子组成,长度为0.3~0.6μm,宽度为100~150 nm,并存在大量的孔。多孔蠕虫Au对对硝基苯乙腈还原表现出较高的催化活性,反应速率常数为0.024 s-1;同时,多孔蠕虫Au也能够高效催化降解亚甲基蓝和刚果红,反应速率常数分别为0.0086 s-1和0.0042 s-1。Under the modulation of ionic liquid tetrapropylammonium glycine([N3333][Gly]),worm-like porous Au were one-step synthesized in aqueous solution at room temperature.The morphology and structures of worm-like porous Au were characterized by scanning electron microscope(SEM),transmission electron microscopy(TEM)and X-ray diffraction(XRD).The results show that prepared worm-like porous Au is composed of lots of small nanoparticles with the diameter of 6~12 nm,which has the length from 0.3μm to 0.6μm and the width of 100~150 nm.At the same time,there exists abundant pores in worm-like porous Au.Worm-like porous Au exhibits outstanding catalytic performance in the reduction of 4-nitrophenylacetonitrile and its reaction rate constant is 0.024 s-1.Also,worm-like porous Au displays highly catalytic activities for the degradation of methylene blue and Congo red,in which the reaction rate constant is 0.0086 s-1 and 0.0042 s-1,respectively.

关 键 词：离子液体 多孔蠕虫Au 催化还原 催化降解 

分 类 号：TQ131.23[化学工程—无机化工]