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Preparation and Properties of Porous Composite of Hematite/Magnetite/Carbon withEucalyptusWood Biotemplate

Authors :
Li Yanhong
Zongqiang Zhu
Yanpeng Liang
Hui Li Liu
Yinian Zhu
H. Deng
Hui Qin
Source :
Materials and Manufacturing Processes. 30:285-291
Publication Year :
2015
Publisher :
Informa UK Limited, 2015.

Abstract

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 ∼ 120 µm macropores, 4.1 ∼ 6.4 µm mesopores, and 0.1 ∼ 1.3 µm micropores. Its Brunauer-Emmtee-Teller (BET) surface area was 59.2 m2 g−1. The maximum adsorption capacities were 2.49, 2.96, and 0.69 mg 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.

Details

ISSN :
15322475 and 10426914
Volume :
30
Database :
OpenAIRE
Journal :
Materials and Manufacturing Processes
Accession number :
edsair.doi...........b38a37abb3e9ab4bbfc382786ae389c2