环境工程学报2013，Vol.7Issue(8)：3048-3052,5.
花生壳活性炭对亚甲基蓝的吸附特性
Adsorption characteristics of methylene blue on peanut shell activated carbon
摘要
Abstract
The peanut carbon activated carbon was prepared from peanut shell using ZnCl2 as chemical activating reagent.The activated carbon was characterized by high-resolution scanning electron microscopy (SEM) and nitrogen adsorption scanning electron microscopy.The thermodynamics parameters for the adsorption of methylene blue in the aqueous solution were discussed.Thermodynamic behavior indicated that the adsorption of methylene blue by the activated carbon obeyed the Langmuir isotherm equation,and the Gibbis free energy of adsorption was-52.4017 ～-95.1765 kJ/mol,the entropy of adsorption process was 214 J/(mol · K),the enthalpy of adsorption was 57.49796 kJ/mol,and the adsorption of methylene blue was a spontaneous and endothermic process.Kinetic studies showed that the adsorption of methylene blue by peanut shell activated carbon was in line with second-order reaction kinetics characteristics.关键词
花生壳/活性炭/亚甲基蓝/吸附热力学Key words
peanut shell/ activated carbon/ methylene blue/ adsorption thermodynamics分类
资源环境引用本文复制引用
刘亚纳,汤红妍,朱书法,周鸣,苗娟..花生壳活性炭对亚甲基蓝的吸附特性[J].环境工程学报,2013,7(8):3048-3052,5.基金项目
河南省科技厅科技攻关项目(122102210551) （122102210551）
河南科技大学青年基金(2011QN56) （2011QN56）
河南科技大学SRTP项目(2012103) （2012103）
