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Position: Home > Articles > Research on the Adsorption of Modified Orange Peel to the Heavy Metal Cu~(2+) Journal of Anhui Agricultural Sciences 2009,37 (33) 16445-16447+16469

改性桔子皮对重金属Cu~(2+)的吸附研究

作  者：
李芳清;吴志猛
单  位：
东华理工大学化学生物与材料科学学院
关键词：
制备;桔子皮纤维素;生物吸附;铜离子
摘  要：
[目的]研究化学修饰桔子皮纤维素对铜离子的吸附性能。[方法]试验采用了几种自制的化学修饰桔子皮纤维素,通过滴定试验比较研究了其对铜离子的吸附性能及其影响因素。[结果]在试验条件下,桔子皮吸附剂吸附铜离子的最佳pH值范围是4.5～5.5。OP的吸附量最小,SOP的吸附量有所提高。在最佳pH值下,不同桔子皮吸附剂对铜离子的吸附量依次是:0.6SCA8>0.6SCA12>0.6SCA5>0.6SCA2。桔子皮吸附剂对铜离子的吸附量在20min内随着时间的延长而增加,在60min后基本达到吸附平衡状态,然后吸附量不再随时间的增加而变化。随着桔子皮用量的增加,吸附效率随之提高,达到平衡后,桔子皮对铜离子的吸附量不再随着吸附剂用量的增加而改变。[结论]利用改性桔子皮除去废水中的铜离子方法是环保可行的。
译  名：
Research on the Adsorption of Modified Orange Peel to the Heavy Metal Cu~(2+)
作  者：
LI Fang-qing et al(College of Chemical Biology and Material Science,East China Institute of Technology,Fuzhou,Jiangxi 344000)
关键词：
Preparation;Orange peel cellulose;Biosorption;Copper ion
摘  要：
[Objective] The aim was to research the adsorption performance of chemically modified orange peel cellulose on copper ion(Cu2+).[Method] Several kinds of self-made chemically modified orange peel celluloses were used in the experiment and their adsorption performances on Cu2+ and their influencing factors were compared and researched through titration tests.[Result]Under experimental condition,the optimum range of pH value for absorbing Cu2+ with the absorber orange peel was 4.5-5.5.The adsorption amount of OP was least and that of SOP got some increased.The adsorption amounts of different orange peel absorbers with optimum pH value on Cu2+ were as follows:0.6SCA8 > 0.6SCA12> 0.6SCA5> 0.6SCA2.The adsorption amounts of orange peel absorbers on Cu2+ were increased along with the extending of time in 20 min.After 60 min,the adsorption reached balance state basically and then the adsorption amount did not change along with the extending of time.As the dosage of orange peel was increased,the adsorption efficiency was enhanced.After reaching balance,the adsorption amount of orange peel on Cu2+ did not change along with the increasing of absorber dosage.[Conclusion] The method of removing Cu2+ from wastewater with modified orange peel was environmental friendly and feasible.

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