从双金属配位聚合物到一维Ag@Co_3O_4纳米复合催化材料  

1D Ag@Co_3O_4 Nanocomposite Catalysts Derived from Bimetallic Coordination Polymers

作　　者：张佳佳[1] 崔放[1] 邵青[1] 徐林煦 崔铁钰[1] ZHANG Jiajia CUI Fang SHAO Qing XU Linxu CUI Tieyu(School of Chemistry and Chemical Engineering, Harbin Institute of Technology, Harbin 150080, China)

机构地区：[1]哈尔滨工业大学化工与化学学院,哈尔滨150080

出　　处：《高等学校化学学报》2016年第10期1876-1881,共6页Chemical Journal of Chinese Universities

基　　金：国家自然科学基金(批准号:21104011;51273051;21174033)资助~~

摘　　要：以合成的双金属配位聚合物Co(MAA)_2/Ag(Ⅰ)纳米带为前驱体,制备了一维Ag@Co_3O_4纳米复合催化材料.采用傅里叶变换红外光谱(FTIR)、核磁共振氢谱(1H NMR)、粉末X射线衍射分析(XRD)、扫描电子显微镜(SEM)及透射电子显微镜(TEM)等方法对其结构进行了表征,结果表明,Ag纳米晶体和Co_3O_4纳米晶体均匀分布在Ag@Co_3O_4纳米带上.采用紫外-可见吸收光谱(UV-Vis)等方法考察了Ag@Co_3O_4纳米复合材料在亚甲基蓝(MB)染料还原反应中的催化性能,发现其具有良好的催化活性、循环稳定性及磁分离能力.1D,magnetic Ag@Co3O4 nanocomposite catalysts were prepared using a synthesized precursor of bimetallic coordination polymers Co（ MAA）2/ Ag（ Ⅰ） nanoribbon. The structure of the obtained material was characterized by Fourier transform infrared spectroscopy（ FTIR）, proton nuclear magnetic resonance（-1H NMR）,powder X-ray diffraction（ XRD）,scanning electron microscopy（ SEM） and transmission electron microscope（ TEM）. The results suggested that both the Ag and Co3O4 nanocrystals distributed uniformly in the entire Ag@Co3O4 nanoribbon. Meanwhile,UV-Visible absorption spectrum（ UV-Vis） was used to investigate the catalytic performance of Ag @Co3O4 nanocomposites towards the reduction of methyl blue（ MB） dye by sodium borohydride（ NaBH4）. The results show that the material has excellent catalytic activity,cyclic stability and magnetic separation ability.

关 键 词：双金属配位聚合物 银 四氧化三钴 纳米复合材料 催化性能 

分 类 号：O643[理学—物理化学] O631[理学—化学]