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首页> 外文期刊>Journal of Environment and Earth Science >Biosorptive Removal of Copper (II) ion from Aqueous Solution using Lawsonia Inermis Plant Leaf Biomass
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Biosorptive Removal of Copper (II) ion from Aqueous Solution using Lawsonia Inermis Plant Leaf Biomass

机译：利用无草紫苏植物叶片生物质对水溶液中的铜离子进行生物吸附去除

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摘要

The present study investigates the biosorptive removal of Copper (II) ion from aqueous solution using plant leaf biomass under various conditions. Biosorption studies have been carried out to determine the effect of pH, Cu (II) metal concentration, contact time, temperature and biomass dose on the biosorption capacity of Cu (II) ions by the biomass. The process was investigated using concentrations of Cu (II) ions ranging from 10-125 mg/L in equilibrium batch tests for Langmiur and Freundlich isotherm models. The biosorption data was better fitted to Langmuir isotherm model, and the maximum biosorption capacity (qmax) was 6.06 mg/g. The optimum pH for the removal of Cu (II) ions was around pH 5.0 and the removal of Cu (II) ions was 85.6%.The biosorption kinetics followed the pseudo-second order model. FTIR clearly showed that –OH, -CH and C=O group are likely to participate in Cu (II) ion adsorption. The results demonstrated that plant leaf biomass was a economic and eco-friendly biosorbent possessed strong biosorption characteristics for Cu (II) ions. Keywords: Lawsonia Inermis. Cu (II) removal, Biosorption, Isotherm.
机译：本研究调查了在各种条件下使用植物叶片生物量从水溶液中吸附铜（II）离子的生物吸附性。已经进行了生物吸附研究，以确定pH，Cu（II）金属浓度，接触时间，温度和生物质剂量对生物质对Cu（II）离子的生物吸附能力的影响。在Langmiur和Freundlich等温模型的平衡批次测试中，使用浓度范围为10-125 mg / L的Cu（II）离子研究了该过程。生物吸附数据更适合Langmuir等温模型，最大生物吸附容量（qmax）为6.06 mg / g。去除Cu（II）离子的最佳pH为pH 5.0左右，去除Cu（II）离子的比例为85.6％，生物吸附动力学遵循拟二级模型。 FTIR清楚地表明–OH，-CH和C = O基团可能参与Cu（II）离子的吸附。结果表明，植物叶片生物量是一种经济，环保的生物吸附剂，对铜离子具有很强的生物吸附特性。关键字：Lawsonia Inermis。去除铜（II），生物吸附，等温线。

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