CAJ | 학술논문

以硝酸铁、天然钙基蒙脱石为原料制备羟基铁蒙脱石,通过XRD分析、表面酸碱滴定实验和pH等温吸附实验,探讨羟基铁蒙脱石界面吸附罗丹明-B的机理。实验结果发现在零电荷点pHzpc=5,罗丹明-B在羟基铁蒙脱石表面的吸附机理主要是形成氢键而发生络合吸附反应;在最大吸附量pH=4时,其吸附主要是静电吸附和形成氢键而发生络合吸附。
이초산철、천연개기몽탈석위원료제비간기철몽탈석,통과XRD분석、표면산감적정실험화pH등온흡부실험,탐토간기철몽탈석계면흡부라단명-B적궤리。실험결과발현재령전하점pHzpc=5,라단명-B재간기철몽탈석표면적흡부궤리주요시형성경건이발생락합흡부반응;재최대흡부량pH=4시,기흡부주요시정전흡부화형성경건이발생락합흡부。
Preparation of hydroxy-Fe montmorillonite using Ferric chloride and natural calcium-based montmorillonite,through X-ray diffraction analysis,surface acid-base titration experiments and pH isothermal adsorption experiment,the adsorption mechanism of rhodamine B on hydroxy-Fe montmorillonite surface.The results showed that the main adsorption mechanism of the rhodamine B on Hydroxy-Fe montmorillonite surface was discussed surface complexation by forming hydrogen bonds at the point of zero charge pHzpc=5,and electrostatic absorption and surface complexation by forming hydrogen dominated at the point of maximum adsorption capacity pH=4.