共 36 条
Facile fabrication of three-dimensional porous CuFe2O4 cages as highly efficient and recyclable heterogeneous catalyst
被引:23
作者:
Zhuang, Yu-Ting
[1
]
Gao, Wei
[1
]
Yu, Yong-Liang
[1
]
Wang, Jian-Hua
[1
]
机构:
[1] Northeastern Univ, Coll Sci, Dept Chem, Res Ctr Analyt Sci, Box 332, Shenyang 110819, Liaoning, Peoples R China
关键词:
Three-dimensional porous metal oxide;
CuFe2O4;
p-nitrophenol;
Methylene blue;
ONE-POT SYNTHESIS;
NANOPARTICLES;
REDUCTION;
HYDROGENATION;
DEGRADATION;
NANOSPHERES;
POLLUTANTS;
OXIDATION;
ROUTE;
MN;
D O I:
10.1016/j.matdes.2017.05.081
中图分类号:
T [工业技术];
学科分类号:
08 ;
摘要:
The design and preparation of high-performance catalysts with high catalytic activity and excellent durability that are both environmentally benign and cost-effective remains a considerable challenge. Herein, a facile strategy is reported for the fabrication of three-dimensional porous CuFe2O4 cages, shortly as 3D CuFe2O4@C, by bubbling oxygen produced in situ through a CuFe2O4 suspension, followed by thermal treatment in nitrogen atmosphere. The 3D CuFe2O4@C structure increases the surface area of CuFe2O4 and provides a porous support structure. It is proposed to be a key in preventing the aggregation of CuFe2O4 during practical use. 3D CuFe2O4@C is shown to be a highly active catalyst, not only for the hydrogenation of p-nitrophenol, but also for the reduction of methylene blue in aqueous medium. 3D CuFe2O4@C exhibits remarkable catalytic activity towards p-nitrophenol reduction, with a catalytic rate constant of 2.167 min(-1) that is 5.35 times higher than that with pristine CuFe2O4 (0.405 min(-1)). In addition, the 3D CuFe2O4@C catalyst has a high saturation magnetization of 51.9 emu g(-1), indicating that it can be easily recycled using amagnet. The 3D porousmetal oxide nanostructure shows promising potentials as candidates for the remediation of contaminated aquatic environments and meets the demands for addressing future environmental issues. [GRAPHICS] .
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页码:294 / 301
页数:8
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