Synthesis of mesoporous maghemite with high surface area and its adsorptive properties

作者: S. Asuha , Y.M. Zhao , S. Zhao , W. Deligeer

DOI: 10.1016/J.SOLIDSTATESCIENCES.2012.04.011

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摘要: Abstract Mesoporous maghemite (γ-Fe2O3) with high surface area was prepared by the thermal decomposition of Fe–urea complex ([Fe(CON2H4)6](NO3)3) aid cetyltrimethyl ammonium bromide (CTAB), and its adsorption ability for removal fluoride investigated. X-ray diffraction (XRD), nitrogen adsorption–desorption measurements, transmission electron micrograph (TEM) observations, magnetic measurements show that γ-Fe2O3 has a mesoporous structure crystallite size, specific area, properties can be controlled varying content CTAB in [Fe(CON2H4)6](NO3)3. The maximum capacity is estimated to 7.9 mg/g, which suggests an excellent adsorbent fluoride.

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