期刊
MATERIALS AND MANUFACTURING PROCESSES
卷 30, 期 3, 页码 285-291出版社
TAYLOR & FRANCIS INC
DOI: 10.1080/10426914.2014.941478
关键词
Iron oxide; Hierarchical porous microstructure; Eucalyptus wood template; Biomorph-genetic magnetic composite; Adsorption capacity
资金
- Provincial Natural Science Foundation of Guangxi [2012GXNSFDA053022]
- Provincial Science and Technology Development Project of Guangxi [1298002-3, 14124004-3-3]
By using eucalyptus wood biotemplate, a novel porous composite material of iron oxides and carbon (PC-Fe/C) was manufactured for adsorption of oxoanion pollutants. The material's microstructure and characteristic were investigated by different characterization techniques. The experimental results show that the PC-Fe/C composite mainly consisted of hematite, magnetite, and carbon, and preserved the porous hierarchical texture of the wood with 70 similar to 120 mu m macropores, 4.1 similar to 6.4 mu m mesopores, and 0.1 similar to 1.3 mu m micropores. Its Brunauer-Emmtee-Teller (BET) surface area was 59.2m(2) g(-1). The maximum adsorption capacities were 2.49, 2.96, and 0.69mg g(-1) for arsenic(V), chromium(VI), and phosphorus(V), respectively. The adsorption capacities of the unpulverized material as a novel filtration adsorbent are comparable to fine particles of the pulverized material, natural, and synthetic iron oxides.
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