Preparation of carbon-coated Fe3O4 porous particles and their adsorption properties of iron (III) ion | Zendy

Xiaozhao Jin | Zendy; Xiaowen Wu | Zendy; Zhijie Zhang | Zendy; Zhaohui Huang | Zendy; Yangai Liu | Zendy; Minghao Fang | Zendy; Xin Min | Zendy

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Preparation of carbon-coated Fe3O4 porous particles and their adsorption properties of iron (III) ion

Author(s) -

Xiaozhao Jin,

Xiaowen Wu,

Zhijie Zhang,

Zhaohui Huang,

Yangai Liu,

Minghao Fang,

Xin Min

Publication year - 2017

Publication title -

water science and technology water supply

Language(s) - English

Resource type - Journals

SCImago Journal Rank - 0.318

H-Index - 39

eISSN - 1607-0798

pISSN - 1606-9749

DOI - 10.2166/ws.2017.082

Subject(s) - adsorption , materials science , carbon fibers , scanning electron microscope , magnetite , chemical engineering , pyrolysis , freundlich equation , isothermal process , amorphous carbon , porosity , graphite , amorphous solid , inorganic chemistry , chemistry , composite material , organic chemistry , metallurgy , physics , composite number , engineering , thermodynamics

Carbon-coated Fe 3 O 4 porous particle was synthesized with phenolic resin as carbon source by using impregnating pyrolysis. The magnetic property, phase structure, pore structure, and surface morphology of pyrolysis products were characterized by vibrating specimen magnetometer, X-ray diffraction, BET, and scanning electron microscopy, respectively. Also, the adsorption properties of iron (III) ions on Fe 3 O 4 @C as well as pure carbon, including adsorption isothermal, kinetics, and pH effect, were investigated. The results showed that the size of synthesized Fe 3 O 4 @C particles ranged from 10 to 50 μm with micro-meso pores sized below 5 nm. The main phases of Fe 3 O 4 @C were magnetite, graphite and amorphous carbon. The adsorption kinetics of iron (III) ions on Fe 3 O 4 @C could be expressed by the pseudo second-order kinetic model and the adsorption isotherm was fitted by a Freundlich model. Nano-Fe 3 O 4 had synergism to porous carbon on the absorption of iron (III) ions.

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