期刊
ACS APPLIED MATERIALS & INTERFACES
卷 9, 期 6, 页码 5231-5236出版社
AMER CHEMICAL SOC
DOI: 10.1021/acsami.6b13186
关键词
conjugated microporous polymer; ultrafine metal nanoparticle; silver; composite; nanocatalyst; nitrophenol reduction
资金
- National Natural Science Foundation of China (NSFC) [91622114]
- State Key Laboratory of Structural Chemistry, Fujian Institute of Research on the Structure of Matter, Chinese Academy of Sciences [20170032]
- Fujian Agriculture and Forestry University [61201401307]
- 973 program [2014CB845605]
- NSFC [21520102001, 21521061, 21331006]
- Strategic Priority Research Program of the Chinese Academy of Sciences [XDB20000000]
- Foundation of Fujian Educational Committee [JA15150]
- Fujian-Taiwan Joint Innovative Center for Germplasm Resources and Cultivation of Crops (FJ Program, China) [2015-75]
A conjugated microporous polymer (CMP) material was designed with pore function of cyano and pyridyl groups that act as potential binding sites for Ag+ ion capture. Ultrafine silver nanoparticles (less than 5 nm) were successfully supported on the predesigned CMP material to afford Ag-0@CMP composite materials by means of a simple liquid impregnation and light-induced reduction method. Spherical Ag-0 nanoparticles with a statistical mean diameter of ca. 3.9 nm were observed and characterized by scanning electron microscopy and transmission electron microscopy. The Ag-0@CMP composite materials were consequently exploited as high-performance nanocatalysts for the reduction of nitrophenols, a family of priority pollutants, at various temperatures and ambient pressure. Moreover, the composite nanocatalysts feature convenient recovery and excellent reusability. This work presents an efficient platform to achieve ultrafine metal nanoparticles immobilized on porous supports with predominant catalytic properties by virtue of the structural design and spatial confinement effect available for conjugated microporous polymers.
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