Kinetics and isotherms of Neutral Red adsorption on peanut husk  

作　　者：HAN Runping HAN Pan CAI Zhaohui ZHAO Zhenhui TANG Mingsheng 

机构地区：[1]Department of Chemistry, Zhengzhou University, Zhengzhou 450052, China [2]China Petroleum and Chemical Corporation Luoyang Company, Luoyang 471012, China

出　　处：《Journal of Environmental Sciences》2008年第9期1035-1041,共7页环境科学学报（英文版）

基　　金：the China PostdoctoralScience Foundation (No. 20070420811);the Edu-cation Department of Henan Province in China (No.200510459016)

摘　　要：Adsorption of Neutral Red (NR) onto peanut husk in aqueous solutions was investigated at 295 K. Experiments were carried out as function of pH, adsorbent dosage, contact time, and initial concentration. The equilibrium adsorption data were analyzed by Langmuir, Freundlich, Temkin, Dubinin-Radushkevich, and Toth isotherm models. The results indicated that the Toth and Langmuir models provided the best correlation of the experimental data. The adsorption capacity of peanut husk for the removal of NR was deter...Adsorption of Neutral Red (NR) onto peanut husk in aqueous solutions was investigated at 295 K. Experiments were carried out as function of pH, adsorbent dosage, contact time, and initial concentration. The equilibrium adsorption data were analyzed by Langmuir, Freundlich, Temkin, Dubinin-Radushkevich, and Toth isotherm models. The results indicated that the Toth and Langmuir models provided the best correlation of the experimental data. The adsorption capacity of peanut husk for the removal of NR was deter...

关 键 词：peanut husk Neutral Red adsorption isotherms KINETICS 

分 类 号：X132[环境科学与工程—环境科学]