naa a22 4500 510749143 CHVBK 20180411083058.0 cr unu---uuuuu 180411e20130601xx s 000 0 eng 10.1007/s11270-013-1589-y doi (NATIONALLICENCE)springer-10.1007/s11270-013-1589-y Kinetics and Thermodynamics of Sorption for As(V) on the Porous Biomorph-Genetic Composite of α-Fe2O3/Fe3O4/C with Eucalyptus Wood Hierarchical Microstructure [Elektronische Daten] [Yinian Zhu, Zongqiang Zhu, Yudao Chen, Feng Yang, Hui Qin, Liwei Xie] A novel porous biomorph-genetic composite of α-Fe2O3/Fe3O4/C (PBGC-Fe/C) with eucalyptus wood template was prepared, characterized and tested for its sorption capacity of As(V) from aqueous solution. The result indicated that the PBGC-Fe/C material retained the hierarchical porous structure of eucalyptus wood with three different types of pores (widths 70∼120, 4.1∼6.4 and 0.1∼1.3μm) originating from vessels, fibres and pits of the wood, respectively. Its surface area was measured to be 59.2m2/g. With increasing initial As(V) concentration from 5 to 100mg/L, the amounts of As(V) sorbed on the pulverized PBGC-Fe/C sorbent (<0.149mm) increased from 0.50 to 4.01mg/g at 25°C, from 0.50 to 4.83mg/g at 35°C and from 0.50 to 4.19mg/g at 45°C, and the corresponding removal rates decreased from 99.97 to 40.10% at 25°C, 99.95 to 48.40% at 35°C and 99.92 to 42.05% at 45°C. At the initial concentrations of 5, 10 and 50mg/L, the sorption capacities for the unpulverized PBGC-Fe/C sorbent (>3mm) were determined to be 0.50, 0.99 and 2.49mg/g, respectively, which exhibited a similar average value to those of fine particles or nanoparticles of iron oxides. The sorption could well be described by the pseudo-second-order kinetic equation. The equilibrium data were found to follow Freundlich as well as Langmuir isotherms. Springer Science+Business Media Dordrecht, 2013 Eucalyptus wood template nationallicence Biomorph-genetic magnetic composite nationallicence Iron oxide nationallicence Hierarchical porous microstructure nationallicence Sorption nationallicence Arsenic (V) nationallicence Zhu Yinian College of Environmental Science and Engineering, Guilin University of Technology, 541004, Guilin, Guangxi, People's Republic China aut Zhu Zongqiang College of Environmental Science and Engineering, Guilin University of Technology, 541004, Guilin, Guangxi, People's Republic China aut Chen Yudao College of Environmental Science and Engineering, Guilin University of Technology, 541004, Guilin, Guangxi, People's Republic China aut Yang Feng Department of Environment Engineering, Nanjing Institute of Technology, 211167, Nanjing, Jiangsu, People's Republic China aut Qin Hui College of Environmental Science and Engineering, Guilin University of Technology, 541004, Guilin, Guangxi, People's Republic China aut Xie Liwei College of Environmental Science and Engineering, Guilin University of Technology, 541004, Guilin, Guangxi, People's Republic China aut Water, Air, & Soil Pollution Springer Netherlands 224/6(2013-06-01), 1-19 0049-6979 224:6<1 2013 224 11270 https://doi.org/10.1007/s11270-013-1589-y text/html Onlinezugriff via DOI 1 research-article jats NATIONALLICENCE 856 40 https://doi.org/10.1007/s11270-013-1589-y text/html Onlinezugriff via DOI NATIONALLICENCE 700 1- Zhu Yinian College of Environmental Science and Engineering, Guilin University of Technology, 541004, Guilin, Guangxi, People's Republic China aut NATIONALLICENCE 700 1- Zhu Zongqiang College of Environmental Science and Engineering, Guilin University of Technology, 541004, Guilin, Guangxi, People's Republic China aut NATIONALLICENCE 700 1- Chen Yudao College of Environmental Science and Engineering, Guilin University of Technology, 541004, Guilin, Guangxi, People's Republic China aut NATIONALLICENCE 700 1- Yang Feng Department of Environment Engineering, Nanjing Institute of Technology, 211167, Nanjing, Jiangsu, People's Republic China aut NATIONALLICENCE 700 1- Qin Hui College of Environmental Science and Engineering, Guilin University of Technology, 541004, Guilin, Guangxi, People's Republic China aut NATIONALLICENCE 700 1- Xie Liwei College of Environmental Science and Engineering, Guilin University of Technology, 541004, Guilin, Guangxi, People's Republic China aut NATIONALLICENCE 773 0- Water, Air, & Soil Pollution Springer Netherlands 224/6(2013-06-01), 1-19 0049-6979 224:6<1 2013 224 11270 Metadata rights reserved Springer special CC-BY-NC licence nationallicence BK010053 XK010053 XK010000 NATIONALLICENCE NATIONALLICENCE NL-springer