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采用化学共沉淀法合成了纳米材料CuFeO_2,运用扫描电镜/能谱仪(SEM/EDS)、X射线粉末衍射仪(XRD)、X射线光电子能谱仪(XPS)、傅里叶变换红外光谱仪(FTIR)、激光粒度分析仪和比表面积测定仪(BET)对其结构进行了表征和测定,结果表明:合成的CuFeO_2平均粒径为20.0 nm,比表面积为258.3 m2/g。CuFeO_2对亚甲基蓝(MB)的吸附是一个准二级动力学过程,在30 min内达到吸附平衡,较好地符合Langmuir吸附模型,同时CuFeO_2具有优异的吸附性能,室温下pH=7时饱和吸附量达123.0 mg/g,CuFeO_2可作为一种有效除去水体中亚甲基蓝污染物的高容量吸附材料。
The nanocomposites CuFeO 2 were synthesized by chemical coprecipitation method and characterized by scanning electron microscopy (SEM / EDS), X-ray powder diffraction (XRD), X-ray photoelectron spectroscopy (XPS) and Fourier transform infrared spectroscopy FTIR, BET and BET. The results showed that the average particle size of CuFeO 2 was 20.0 nm and the specific surface area was 258.3 m 2 / g. The adsorption of methylene blue (MB) on CuFeO_2 was a quasi-second-order kinetic process and reached the adsorption equilibrium within 30 min, which was in good agreement with the Langmuir adsorption model. Meanwhile, CuFeO_2 had excellent adsorption properties. The adsorption capacity of saturated Fe Up to 123.0 mg / g. CuFeO 2 can be used as a high-capacity adsorbent to effectively remove methylene blue pollutants in water.