摘要
采用本实验室自制的羊骨基活性炭,研究其在不同吸附时间、不同溶液初始浓度、不同投加量、溶液不同的pH值条件下对Pb(Ⅱ)的吸附规律。结果表明:当Pb(Ⅱ)溶液的初始浓度为80mg/L、活性炭投加量为0.10g、吸附时间为6h、溶液温度为45℃时,羊骨基活性炭对Pb(Ⅱ)的去除率高达99%。利用Langmuir吸附等温模型和Freundlich吸附等温模型对其吸附性能的表征得出:羊骨基活性炭对溶液中Pb(Ⅱ)的吸附行为符合Langmuir吸附等温模型和Freundlich吸附等温模型,并且吸附等温曲线在Brunauer五种类型的等温吸附线中比较符合多分子层吸附等温线。
Activated carbon derived from sheep bones was prepared,its adsorption for Pb（II）was investigated by varying adsorption time,initial concentration,activated carbon dosage and pH value.The adsorption was found to follow Langmuir isotherm Freundlich isotherm equations.Results showed that the Pb（Ⅱ） removal ratio from solution by activated carbon from sheep bones was over 99% when the initial Pb（Ⅱ） concentration was 80mg/L with 0.10g activated carbon dosage at 45℃ and adsorption time for 6 h.The adsorption isotherm curve partly accorded with the type Ⅱ multilayer isotherm in Brunauer 5 type isotherm equations.
出处
《化工进展》
EI
CAS
CSCD
北大核心
2010年第12期2390-2394,共5页
Chemical Industry and Engineering Progress
基金
自治区科技支疆资助项目(200991208)
