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.
作者
张佳佳
崔放
邵青
徐林煦
崔铁钰
ZHANG Jiajia CUI Fang SHAO Qing XU Linxu CUI Tieyu(School of Chemistry and Chemical Engineering, Harbin Institute of Technology, Harbin 150080, China)
出处
《高等学校化学学报》
SCIE
EI
CAS
CSCD
北大核心
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~~
