镧插层蒙脱土@生物炭的制备及性能  

Preparation and Properties of La Intercalated Montmorillonite@Biochar

作　　者：徐丽丽 刘金燕 吉国佳 张志伟 鲁勖琳[1,2] 宋爱君 XU Lili;LIU Jinyan;JI Guojia;ZHANG Zhiwei;LU Xulin;SONG Aijun(College of Chemical Engineering,Hebei Normal University of Science&Technology,Qinhuangdao Hebei,066600;Institute of Applied Photochemistry,Hebei Normal University of Science&Technology,China)

机构地区：[1]河北科技师范学院化学工程学院,河北秦皇岛066600 [2]河北科技师范学院应用光化学研究所

出　　处：《河北科技师范学院学报》2022年第1期58-65,共8页Journal of Hebei Normal University of Science & Technology

基　　金：河北省“三三三人才工程”资助项目(项目编号:A201901059,A202001023);河北省引进留学人员资助项目(项目编号:360-0803-YZN-SKYO);河北省重点研发计划项目(项目编号:20327311D)。

摘　　要：采用水热法制备了镧插层蒙脱土@生物炭(以下简称La-MNT@BC),复合材料以蒙脱土,LaN_(3)O_(9)·6H_(2)O为原料,生物炭作为载体合成,并通过改性扩大了蒙脱土的层间距,使镧更容易进入到蒙脱土的层间;采用X射线衍射仪、扫描电子显微镜、傅里叶变换红外光谱仪等仪器对复合材料的物相、反应历程、形貌进行了表征。结果表明,成功合成了La-MNT@BC复合材料。吸附试验表明,La-MNT@BC的吸附性能明显优于蒙脱土和生物炭,对磷酸盐的去除率可达96.75%。The lanthanum intercalated montmorillonite@biochar(La-MNT@BC)was prepared by hydrothermal method.The composite was synthesized with montmorillonite and LaN_(3)O_(9)·6H_(2)O as raw materials and biochar as carrier.The interlayer spacing of montmorillonite is enlarged by modification,which makes lanthanum entering into the interlayer more easily.The phase and morphology of the composite were characterized by X-ray diffraction,scanning electron microscope and Fourier transform infrared analysis.The results show that La-MNT@BC has been successfully synthesized.The adsorption experiments show that the adsorption performance of La-MNT@BC is obviously better than that of the montmorillonite and biochar,and the removal rate of phosphate is 96.75%.

关 键 词：镧插层蒙脱土 生物炭 制备及性能 

分 类 号：TQ424[化学工程] X781[环境科学与工程—环境工程]