Synthesis and Characterization of Wooden Magnetic Activated Carbon Fibers with Hierarchical Pore Structures
文献类型： 外文期刊
作者： Li, Dongna 1 ; Li, Jianing 1 ; Ren, Biyun 2 ; Li, Tongtong 1 ; Ma, Xiaojun 2 ;
作者机构： 1.Chinese Acad Trop Agr Sci, Rubber Res Inst, State Key Lab Breeding Base Cultivat & Physiol Tr, Minist Agr,Key Lab Biol & Genet Resource Utilizat, Danzhou 571737, Peoples R China
2.Tianjin Univ Sci & Technol, Coll Packaging & Printing Engn, Tianjin 300222, Peoples R China
关键词： magnetic iron oxide nanoparticles; wooden activated carbon fiber; biocompatible; adsorption; magnetic properties
期刊名称：POLYMERS （ 影响因子：4.329； 五年影响因子：4.493 ）
ISSN： 2073-4360
年卷期： 2018 年 10 卷 4 期
页码：
收录情况： SCI
摘要： Wooden magnetic activated carbon fibers (WMACFs) with hierarchical pore structures were obtained by adding magnetic iron oxide (Fe3O4) nanoparticles into the liquefied wood. The structures and properties of WMACFs were analyzed by scanning electronmicroscopy (SEM), X-ray diffraction (XRD), Fourier transform infrared spectroscopy (FTIR), N-2 adsorption, and vibrating sample magnetometer (VSM). The results showed that WMACFs had high Brunauer-Emmett-Teller (BET) surface area (1578 m(2)/g) and total pore volume (0.929 cm(3)/g), of which 45% was the contribution of small mesopores of 2-3 nm. It is believed that Fe3O4 nanoparticles play an important role in the formation of hierarchical pores. With the Fe3O4 content increasing, the yield rate of WMACFs decreased, and the Fe3O4 crystal plane diffraction peaks and characteristic adsorption peaks were obviously observed. At the same time, it was also found that WMACFs had favorable magnetic properties when the Fe3O4 content was above 1.5%. As a result, WMACFs could be a promising candidate for high efficiency, low cost, and convenient separation for the magnetic field.
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