纳米四氧化三铁制备及其吸附刚果红的性能研究

发布时间：2018-06-28 16:40

本文选题：磁性材料 + 吸附　；参考：《无机盐工业》2017年04期

【摘要】：通过简单的一壶水热法合成了四氧化三铁磁性纳米材料。纳米粒子成均匀分散的球状,粒径大约在25 nm。将合成的纳米四氧化三铁用于刚果红的吸附实验,发现其对污水中的污染物刚果红具有很高的吸附能力,由Langmuir等温方程计算得到,四氧化三铁对刚果红的最大吸附量为149.7 mg/g。吸附等温方程分析表明吸附符合Langmuir模型。吸附动力学研究表明吸附机制与吸附质和吸附剂有关。四氧化三铁纳米粒子具有高的饱和磁化强度,在外磁场作用下能快速响应,有利于它们在高效吸附场合的应用。
[Abstract]:Ferromagnetic nanomaterials were synthesized by a simple hydrothermal method. The nanoparticles are uniformly dispersed in spherical shape, with a particle size of about 25 nm. The synthesized nanometer ferric oxide was used in Congo red adsorption experiment. It was found that it had a high adsorption capacity to Congo red in sewage. The maximum adsorption capacity of Congo red was 149.7 mg / g by Langmuir isothermal equation. The adsorption isotherm equation analysis shows that the adsorption accords with Langmuir model. The adsorption kinetics shows that the adsorption mechanism is related to the adsorbents and adsorbents. Iron trioxide nanoparticles have high saturation magnetization and can respond rapidly under the action of external magnetic field, which is beneficial to their application in high efficiency adsorption field.
【作者单位】：渤海大学化学化工与食品安全学院应用化学重点实验室;
【分类号】：TQ424;TB383.1

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