Adsorption of Nickel From Aqueous Solution by Humin

Journal of Petrochemical Universities ›› 2007, Vol. 20 ›› Issue (2): 5-8.

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Adsorption of Nickel From Aqueous Solution by Humin

LIU Zhi-rong^1,2, ZHOU Li-min¹, WEI Peng¹, PETER Warwick², NICK Evans²

1.Department of Applied Chemistry, East China Institute of Technology, Fuzhou Jiangxi 344000, P. R. China; 
2.Department of Chemistry, Loughborough University, Leicestershire LE11 3TU, UK

Received:2006-12-06 Published:2007-06-20 Online:2017-06-28

胡敏素在水溶液中吸附镍

刘峙嵘^1,2, 周利民¹, 韦鹏¹, 比特², 尼克²

1.东华理工学院应用化学系,江西抚州344000; 2.拉夫堡大学化学系,英国莱切斯特LE113TU

作者简介:刘峙嵘(1969-),男,江西省萍乡市,副教授,博士。
基金资助:
国家留学基金委资助(22307S05);东华理工学院博士基金(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(051104)

Abstract

Abstract:

The experiment tested that humin can enrich Ni²⁺by means of liquid scintillation counting. The procedures were effected by pH value, amount of humin and initial aqueous concentration of nickel. There may be exist reversible transitions among humic acid, fulvic acid and humin for variation of ultra-violet of peat or humin into nickel solution. Freundlich equation can describe the adsorption reaction of Ni²⁺onto humin excellently. Nickel-humin -dual-complexation mode play an primary part in the adsorption owing to Freundlich [KG*3]adsorption [KG*3]exponent 0.684 4. Freundlich adsorption exponent （0.638 2，

0.684 4）and common logarithm of adsorption index （1.693 2，1.711 5）for peat and humin are almost equal. They indicate that humin may control the binding ability of Ni²⁺onto peat. The results show that humin can act as a potential material for permeable reactive barrier.

Key words: Peat , Humin , Nickel , Adsorption , pH

摘要： 通过液闪法分析得到胡敏素可富集镍,但是吸附受介质pH 值、胡敏素用量和水相镍初始浓度等因素的影响。泥煤或胡敏素镍溶液紫外光谱的变化说明胡敏酸、富里酸和胡敏素3者之间或许存在可逆转化。胡敏素对镍的吸附反应可用Freundlich方程很好地进行描述,胡敏素吸附镍Freundlich吸附指数0.6844推导出吸附反应以
镍双配位形态为主。泥煤和胡敏素吸附镍Freundlich吸附指数(0.6382,0.6844)和吸附系数常用对数值(1.6932,1.7115)数值非常接近,表明胡敏素组分可能决定了泥煤的吸附能力,因此胡敏素将可作为有潜力的可渗透性屏障地质材料。

关键词: 泥煤, 胡敏素 , 镍 , 吸附 , pH

LIU Zhi-rong, ZHOU Li-min, WEI Peng, PETER Warwick, NICK Evans. Adsorption of Nickel From Aqueous Solution by Humin[J]. Journal of Petrochemical Universities, 2007, 20(2): 5-8.

刘峙嵘, 周利民, 韦鹏, 比特, 尼克. 胡敏素在水溶液中吸附镍[J]. 石油化工高等学校学报, 2007, 20(2): 5-8.

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Adsorption of Nickel From Aqueous Solution by Humin

胡敏素在水溶液中吸附镍

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