甲基橙吸附动力学分析及离子影响的研究  

Investigation of dynamic analysis and ion impact on adsorption of methyl orange

作　　者：杨翌 花馨 张兵[1] 吴永红[1] YANG Yi;HUA Xin;ZHANG Bing;WU Yong-hong(School of Petrochemical Engineering,Shenyang University of Technology,Liaoyang 111003,Liaoning Province,China;Oil Refinery Factory,Liaoyang Petrochemical Company,PetroChina,Liaoyang 111003,Liaoning Province,China)

机构地区：[1]沈阳工业大学石油化工学院,辽宁辽阳111003 [2]中国石油辽阳石化分公司炼油厂,辽宁辽阳111003

出　　处：《化学工程》2021年第4期14-17,39,共5页Chemical Engineering(China)

基　　金：辽宁省百千万人才项目(2018921046);辽宁省教育厅科研项目(LJGD2020002);沈阳市科技创新人才项目(RC200325)。

摘　　要：研究了甲基橙在水中的吸附动力学及共存离子的影响规律。首先,制备了无烟煤基活性炭(AC),并考察了AC用量、吸附温度、溶液浓度、离子种类、离子浓度等因素对AC吸附脱除水中甲基橙(MO)性能影响。结果显示:当溶液中共存阳离子可显著提高MO在AC上吸附率。在AC用量为0.300 g(以每50 mL溶液计)、离子浓度为0.1-0.3 mol/L、吸附时间为30 min条件时,AC对含0.3 mol/L的K^(+)水溶液中MO吸附能力最强。另外,MO在AC上吸附符合准二级动力学,吸附遵循Freundlich模型规律。The adsorption dynamics and the influence rule of co-existing ions for methyl orange in water were studied.First,activated carbon(AC)was prepared by anthracite.Simultaneously,the effects of AC dosage,adsorption temperature,solution concentration,ion species,ion concentration and other factors on the adsorption performance of AC to remove methyl orange(MO)from water were investigated.The results show that the species and concentration of co-existing cations in MO aqueous solution can significantly increase the AC adsorption rate.Under the condition of AC dosage 0.300 g per 50 mL solution,ion concentration 0.1-0.3 mol/L and adsorption time 30 min,the highest adsorption capacity is reached for MO on AC in aqueous solution containing 0.3 mol/L K^(+).In addition,the adsorption of MO on AC complies with quasi-second-order kinetics,and the adsorption follows the Freundlich model law.

关 键 词：活性炭 阳离子 甲基橙 吸附 

分 类 号：TQ028.8[化学工程]