CAJ | 학술논문

采用化学共沉淀法制备了磁性伊利石复合材料，并对其吸附性能进行研究。首先利用红外光谱（FTIR）、场发射扫描电镜（SEM）和振动样品磁强计（VSM）对磁性伊利石进行表征，然后研究了吸附剂浓度、吸附时间、pH值和温度对 Co(Ⅱ)在磁性伊利石上吸附的影响，并采用 Lagrange 准二级动力学方程、Langmuir 等温线方程及Freundlich等温线方程对实验数据进行拟合。结果表明：Fe3O4纳米粒子成功地复合在了伊利石表面；pH值和温度对Co(Ⅱ)在伊利石上的吸附影响较大；Co(Ⅱ)在磁性伊利石上的吸附符合Lagrange准二级动力学方程；热力学符合Langmuir等温线方程，并且高温利于吸附。
채용화학공침정법제비료자성이리석복합재료，병대기흡부성능진행연구。수선이용홍외광보（FTIR）、장발사소묘전경（SEM）화진동양품자강계（VSM）대자성이리석진행표정，연후연구료흡부제농도、흡부시간、pH치화온도대 Co(Ⅱ)재자성이리석상흡부적영향，병채용 Lagrange 준이급동역학방정、Langmuir 등온선방정급Freundlich등온선방정대실험수거진행의합。결과표명：Fe3O4납미입자성공지복합재료이리석표면；pH치화온도대Co(Ⅱ)재이리석상적흡부영향교대；Co(Ⅱ)재자성이리석상적흡부부합Lagrange준이급동역학방정；열역학부합Langmuir등온선방정，병차고온리우흡부。
Magnetic illite composite was synthesized by chemical co-precipitation and its sorption behavior was investigated. Magnetic illite composite was characterized by Fourier transfer infrared (FTIR),scanning electron microscope (SEM) and vibrating sample magnetometer (VSM). The sorption behavior of magnetic illite for Co(Ⅱ) was studied as a function of solid content,contact time,pH and temperature. The Lagrange pseudo-second order kinetic model,Langmuir isotherm and Freundlich equation were used to fit the data. The results manifested that magnetic illite composite was successfully obtained. Sorption was strongly affected by pH and temperature. The sorption of magnetic illite for Co(Ⅱ) was found to follow the Lagrange pseudo-second-order kinetic model. With respect to thermodynamics, sorption of Co(Ⅱ) increased with increasing temperature and fitted the Langmuir isotherm.