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通过溶胶-凝胶法成功合成了铁酸铋磁性纳米粒子(BiFeO3MNPs),X-射线衍射结果表明,得到的BiFeO3具有高度结晶和单相钙钛矿结构.将其用于催化过氧化氢降解偶氮染料甲基橙(MO)的研究,探讨了各因素对去除率的影响;结果表明,在不调pH值的情况下,当BiFeO3MNPs质量浓度为1.0g/L、过氧化氢浓度为0.2mol/L、温度为30℃、反应时间为24h时,对MO的去除率可达到90%.
Bismuth ferrite magnetic nanoparticles (BiFeO3MNPs) were successfully synthesized by sol-gel method. The results of X-ray diffraction showed that BiFeO3 was highly crystalline and single-phase perovskite structure, which was used to catalyze the degradation of hydrogen peroxide The results showed that when the concentration of BiFeO3MNPs was 1.0g / L and the concentration of hydrogen peroxide was 0.2mol, the effect of various factors on the removal rate was investigated. / L, the temperature is 30 ℃, the reaction time is 24h, the removal rate of MO can reach 90%.