Fe载入生物质活性碳的制备及吸附性能研究  

Preparation and adsorption properties of Fe-loaded biomass activated carbon

作　　者：姚宇佳 王晴 张凤 岳群峰[1] YAO Yu-jia;WANG Qing;ZHANG Feng;YUE Qun-feng(College of Chemistry and Chemical Engineering,Harbin Normal University,Harbin 150025,China)

机构地区：[1]哈尔滨师范大学化学化工学院,黑龙江哈尔滨150025

出　　处：《化学工程师》2023年第1期88-92,共5页Chemical Engineer

基　　金：哈尔滨师范大学研究生学术创新项目(No.HSDSSCX2021-113)资助。

摘　　要：以生物质活性碳为碳基体,选取FeCl_(3)·6H_(2)O、FeSO_(4)·7H_(2)O为铁源,通过化学共沉淀法、水热法两种方式制备出磁性Fe载入的多孔生物质碳材料。利用N_(2)吸附脱附(BET)、扫描电子显微镜(SEM)和X射线衍射(XRD)等对所制备的样品进行表征。结果表明,共沉淀法制备的磁性生物质碳的表面积为596.9m^(2)·g^(-1),对罗丹明B的最大吸附量可达到241.53mg·g^(-1)。进一步研究表明,吸附过程符合Langmuir等温线和准二级动力学方程,是一个自发的吸热过程。Using biomass activated carbon as carbon matrix,FeCl_(3)·6H_(2)O and FeSO_(4)·7H_(2)O as iron sources,magnetic Fe-loaded porous biomass carbon materials were prepared by chemical co-precipitation method and hydrothermal method.The prepared samples were characterized by N_(2)adsorption and desorption(BET),scanning electron microscopy(SEM)and X-ray diffraction(XRD).The results showed that the surface area of the magnetic biomass carbon prepared by the co-precipitation method was 596.9m2·g^(-1),and the maximum adsorption capacity of rhodamine B could reach 241.53mg·g^(-1).Further studies show that the adsorption process conforms to the Langmuir isotherm and pseudo-second-order kinetic equation,and is a spontaneous endothermic process.

关 键 词：生物质碳 磁性材料 吸附性能 

分 类 号：O647.3[理学—物理化学]