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泥煤吸附镍Langmuir等温式:线性与非线性方法对比 被引量:1

Langmuir isotherms for sorption of nickel on peat: comparison of linear and non-linear method
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摘要 应用同位素示踪技术,简要地研究了^63Ni在泥煤中的等温吸附行为。结果表明,Langmuir等温式能准确表述室温下泥煤吸附镍的热力学行为。但是,不同的Langmuir等温式线性拟合式求得的Langmuir常数值有所差异,而非线性拟合得到的结果却完全一致。非线性试差拟合比线性最小二乘法拟合更能获得满意的Langmuir常数值且更能恰当地描述泥煤对镍的吸附规律。 By means of isotopic tracer technique adsorption isotherm of nickel onto peat was investigated. Equilibrium parameters or thermodynamics for nickel onto peat were estimated by linear least square and a trial and error non-linear method using Langmuir isotherms. A comparison between linear and non-linear method of estimating the isotherm parameters was reported. The results show that non-linear method could be a better way to obtain the parameters of Langmuir isotherm than linear method.
出处 《功能材料》 EI CAS CSCD 北大核心 2007年第A07期2800-2802,共3页 Journal of Functional Materials
基金 国家留学基金管理委员会资助项目(22307S05) 东华理工学院博士基金资助项目(DHB0504) 东华理工学院核资源与环境工程技术中心开放测试基金资助项目(051104)
关键词 镍-63 泥煤 吸附 线性方法 非线性方法 nickel-63 peat sorption linear method non-linear method
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