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采用透射电镜、X射线衍射和傅里叶红外光谱等技术对Fe3O4/GO,Fe3O4/MWCNTs和Fe3O4纳米组分进行了表征.基于Fe3O4/GO复合纳米组分优异的催化性能,研究了催化剂投加量、过硫酸钠浓度和pH值等对其催化性能的影响.结果表明:3种纳米组分的催化性能大小依次为:Fe3O4/GO>Fe3O4/MWCNTs>Fe3O4,其中,Fe3O4/GO复合纳米组分催化过硫酸钠降解卡马西平的性能最优.Fe3O4/GO复合纳米组分的最佳投加量和过硫酸钠的最佳浓度分别为0.4g/L和1.5mmol/L.Fe3O4/GO复合纳米组分在酸性条件下表现出最佳的催化性能,随着pH值升高,催化性能降低.Fe3O4/GO复合纳米组分对3种常用氧化剂均有较好的催化效果,且催化性能大小依次为:过硫酸氢钾>H2O2>过硫酸钠.
The Fe3O4 / GO, Fe3O4 / MWCNTs and Fe3O4 nanocomposites were characterized by transmission electron microscopy, X-ray diffraction and Fourier transform infrared spectroscopy. Based on the excellent catalytic performance of Fe3O4 / GO nanocomposites, , Sodium persulfate concentration and pH value on the catalytic performance.The results showed that the catalytic performance of the three kinds of nano-components in order of: Fe3O4 / GO> Fe3O4 / MWCNTs> Fe3O4, which, Fe3O4 / GO composite nano group Catalytic degradation of carbamazepine by sodium peroxydisulfate was the best.The optimum dosage of Fe3O4 / GO nanocomposites and sodium persulfate were 0.4g / L and 1.5mmol / L.Fe3O4 / GO The composite nanocomposites showed the best catalytic performance under acidic conditions, with the increase of pH value, the catalytic performance decreased.Fe3O4 / GO nanocomposites had good catalytic activity on the three commonly used oxidants, and the catalytic performance Size followed by: potassium hydrogen sulfate> H2O2> sodium persulfate.