SHI Xiao-na,LIN Jia-wei,YIN Yi,et al.Preparation of Fe@Fe3C-C and Its Efficient Adsorption of Bisphenol A[J].Journal of Instrumental Analysis,2023,42(06):666-673.
SHI Xiao-na,LIN Jia-wei,YIN Yi,et al.Preparation of Fe@Fe3C-C and Its Efficient Adsorption of Bisphenol A[J].Journal of Instrumental Analysis,2023,42(06):666-673. DOI: 10.19969/j.fxcsxb.23010802.
Preparation of Fe@Fe3C-C and Its Efficient Adsorption of Bisphenol A
A magnetic porous carbon material Fe@Fe,3,C-C was prepared by derivatizing an iron-based metal organic framework MIL-88B(Fe) in this paper,and applied to the efficient adsorption of bisphenol A(BPA) in water.The crystal structure,morphology and surface area of the material were characterized by X-ray diffraction,scanning electron microscopy,surface area and pore size analysis. The results showed that MIL-88B(Fe) was transformed into Fe and Fe,3,C co-doped carbon material(Fe@Fe,3,C-C) under high temperature,which had a layered burst-like sheet structure with rough surface.The specific surface area of Fe@Fe,3,C-C was 280.48 m,2,/g,17 times higher than that of MIL-88B(Fe).The adsorption experiment showed that,compared with MIL-88B(Fe),calcination at high temperature(≥ 600 ℃) could improve the adsorption performance significantly.The removal rate of BPA of 10 mg/L reached 95% within 10 min when the amount of Fe@Fe,3,C-C was 0.5 g/L.The material had a wide range of pH application(pH 2.0-10.0) and a strong ability against ionic interference(100 mmol/L),and was suitable for BPA adsorption in high-salt environment.The pseudo-second-order kinetic model accords with the adsorption kinetics curve for BPA on Fe@Fe,3,C-C,and the adsorption process accords with the Langmuir model.Cyclic experiments showed that Fe@Fe,3,C-C has a good recycling ability and could be easily recovered from water.X-ray photoelectron spectroscopy and zeta potential were used to investigate the adsorption mechanism.The main mechanisms of Fe@Fe,3,C-C were π-π interaction,charge interaction and micropore filling.These results indicated that Fe@Fe,3,C-C has a great application potential in the removal of BPA in water.
关键词
MIL-88B(Fe)碳衍生化双酚A吸附
Keywords
MIL-88B(Fe)carbon derivatizationBPAadsorption
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