【作者】 董妍； 曲凤玉；

【Author】 Yan Dong,Fengyu Qu* College of Chemistry and Chemical Engineering,Harbin Normal University,Harbin 150025

【机构】 哈尔滨师范大学化学化工学院；

【摘要】 通过化学活化的方法在氮气氛围下还原Fe(NO3)3合成了磁性的介孔碳材料。所有的材料都具有双介孔结构(2.8-2.9nmand3.5-4.1nm),高比表面积(975-1321m2/g),较大的孔体积(0.85-1.08cm3/g)。材料对四种染料亚甲基蓝、甲基橙、罗丹明B和刚果红有着优异的吸附性能,最高可以达到768mg/g。实验表明所有的吸附等温线都符合经典的Langmuir吸附模型,材料的比表面积和孔径与染料分子尺寸的匹配情况对吸附量的大小有着重要的影响。更多还原

【Abstract】 The magnetic mesoporous carbon materials have been synthesized by chemical activation followed by reduction of Fe(NO3)3 under N 2 condition.All these materials possess dual-pore mesopore texture(2.8-2.9 nm and 3.5-4.1 nm),large surface areas(975-1321 m2 /g),and high pore volumes(0.85-1.08 cm3/g).The adsorption capability and behavior of four dyes,methylthionine chloride(MC),methyl orange(MO),rhodamine B(RB),and gongo red(GR),were carried out on these magnetic bimodal mesoporous carbon materials.All the materials show the well adsorption capacity of the four dyes,(highest reach 768 mg/g).After investigating the adsorption isotherms of these dyes,they all fit the typical Langmuir adsorption model.And the adsorption amount is mainly affected by BET surface area and the structure/size matching between adsorbent and adsorbate.更多还原