Cu (Ⅱ)和Cd (Ⅱ)在氧化石墨烯/聚酰胺-胺复合材料上的竞争吸附

刘芳; 贺盛福; 张帆; 张晨

doi:10.12030/j.cjee.201509251

环境工程学报

Cu (Ⅱ)和Cd (Ⅱ)在氧化石墨烯/聚酰胺-胺复合材料上的竞争吸附

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刘芳, 贺盛福, 张帆, 张晨. Cu (Ⅱ)和Cd (Ⅱ)在氧化石墨烯/聚酰胺-胺复合材料上的竞争吸附[J]. 环境工程学报, 2017, 11(2): 892-898. doi: 10.12030/j.cjee.201509251

引用本文:

刘芳, 贺盛福, 张帆, 张晨. Cu (Ⅱ)和Cd (Ⅱ)在氧化石墨烯/聚酰胺-胺复合材料上的竞争吸附[J]. 环境工程学报, 2017, 11(2): 892-898. doi: 10.12030/j.cjee.201509251

LIU Fang, HE Shengfu, ZHANG Fan, ZHANG Chen. Competitive adsorption of Cu(Ⅱ) and Cd(Ⅱ) on GO/PAMAMs composites[J]. Chinese Journal of Environmental Engineering, 2017, 11(2): 892-898. doi: 10.12030/j.cjee.201509251

Citation:

LIU Fang, HE Shengfu, ZHANG Fan, ZHANG Chen. Competitive adsorption of Cu(Ⅱ) and Cd(Ⅱ) on GO/PAMAMs composites[J]. Chinese Journal of Environmental Engineering, 2017, 11(2): 892-898. doi: 10.12030/j.cjee.201509251

Cu (Ⅱ)和Cd (Ⅱ)在氧化石墨烯/聚酰胺-胺复合材料上的竞争吸附

1.
吉首大学化学化工学院, 吉首 416000
2.
湖南省锰锌钒产业技术2011协同中心, 吉首 416000
基金项目:
国家自然科学基金资助项目（B061202）

吉首大学化学化工类专业校外实践基地开放项目（2014jdxm06）

湖南省教育厅重点项目（15A150）

Competitive adsorption of Cu(Ⅱ) and Cd(Ⅱ) on GO/PAMAMs composites

1.
College of Chemistry and Chemical Engineering, Jishou University, Jishou 416000, China
2.
The Collaborative Innovation Center of Manganese-Zinc-Vanadium Industrial Technology(the 2011 Plan of Hunan Province), Jishou University, Jishou 416000, China
Fund Project:

摘要: 以“grafting to”法制备的氧化石墨烯/聚酰胺-胺（GO/PAMAMs）作为吸附剂，研究了Cu（Ⅱ）和Cd（Ⅱ）在GO/PAMAMs上的竞争吸附行为，考察了溶液pH值、吸附时间、初始离子浓度及吸附剂用量等因素对吸附过程的影响，探讨了Cu（Ⅱ）和Cd（Ⅱ）在GO/PAMAMs上的竞争吸附机理。研究表明：GO/PAMAMs对Cu（Ⅱ）的吸附最佳pH值是5.0，Cd（Ⅱ）的最佳pH值为5.5；Cu（Ⅱ）和Cd（Ⅱ）在GO/PAMAMs上的竞争吸附过程符合Lagergren准二级动力学模型，等温吸附过程遵循Langmuir模型；热力学研究表明Cu（Ⅱ）和Cd（Ⅱ）在GO/PAMAMs上的吸附是自发进行的吸热过程，且属于物理吸附。
- 氧化石墨烯/聚酰胺-胺 /
- 竞争吸附 /
- Cu (Ⅱ) /
- Cd (Ⅱ)
Abstract: Graphene oxide/polyamidoamine dendrimers (GO/PAMAMs) were prepared as adsorbents via a "grafting to" method, and the competitive adsorption behavior of Cu(Ⅱ) and Cd(Ⅱ) onto the GO/PAMAMs was studied. The effects of such factors as the solution pH, initial metal ion concentration, and adsorbent dosage were investigated, and the competitive adsorption mechanisms of Cu(Ⅱ) and Cd(Ⅱ) onto the GO/PAMAMs were also explored. The results indicated that the optimum pH values for the adsorption of Cu(Ⅱ) and Cd(Ⅱ) onto GO/PAMAMs were 5.0 and 5.5, respectively. The kinetics of the competitive adsorption of Cu(Ⅱ) and Cd(Ⅱ) onto GO/PAMAMs could be well described by a pseudo-second-order model, while the adsorption isotherm followed the Langmuir model. The thermodynamic results imply that the competitive adsorption of Cu(Ⅱ) and Cd(Ⅱ) is a spontaneous and endothermic physisorption process.
- graphene oxide/polyamidoamine dendrimers (GO/PAMAMs) /
- competitive adsorption /
- Cu(Ⅱ) /
- Cd(Ⅱ)

[1]	李法云, 藏树良, 罗义. 污染土壤生物修复技术研究[J]. 生态学杂志, 2003, 22(1):35-39
[2]	WU Gang, KANG Hubiao, ZHANG Xiaoyang, et al. A critical review on the bio-removal of hazardous heavy metals from contaminated soils:Issues, progress, eco-environmental concerns and opportunities[J]. Journal of Hazardous Materials, 2010, 174(1/2/3):1-8
[3]	陈善荣, 陈明. 广东省北江韶关段镉污染事件案例分析[J]. 环境教育, 2008(1):49-53
[4]	谢文平, 王少冰, 朱新平, 等. 珠江下游河段沉积物中重金属含量及污染评价[J]. 环境科学, 2012, 33(6):1808-1815
[5]	江曙光. 中国水污染现状及防治对策[J]. 水产科技情报, 2010, 37(4):177-181
[6]	YANG Shengtao, CHANG Yanli, WANG Haifang, et al. Folding/aggregation of graphene oxide and its application in Cu²⁺ removal[J]. Journal of Colloid and Interface Science, 2010, 351(1):122-127
[7]	WANG Hou, YUAN Xingzhong, WU Yan, et al. Adsorption characteristics and behaviors of graphene oxide for Zn(Ⅱ) removal from aqueous solution[J]. Applied Surface Science, 2013, 279:432-440
[8]	HUANG Zhenghong, ZHENG Xiaoyu, LV Wei, et al. Adsorption of lead(Ⅱ) ions from aqueous solution on low-temperature exfoliated graphene nanosheets[J]. Langmuir, 2011, 27(12):7558-7562
[9]	TOMALIA D A, BAKER H, DEWALD J, et al. A new class of polymers:Starburst-dendritic macromolecules[J]. Polymer Journal, 1985, 17(1):117-132
[10]	ZHANG Fan, WANG Bo, HE Shengfu, et al. Preparation of graphene-oxide/polyamidoamine dendrimers and their adsorption properties toward some heavy metal ions[J]. Journal of Chemical & Engineering Data, 2014, 59(5):1719-1726
[11]	CHEN Tongbin, WEI Chaoyang, HUANG Zechun, et al. Arsenic hyperaccumulator Pteris vittata L[J]. And its arsenic accumulating. Chinese Science Bulletin, 2002, 47(11):902-905
[12]	邹卫华, 韩润平, 陈宗璋, 等. 锰氧化物/石英砂(MOCS)对铜和铅离子的动态吸附[J]. 应用化学, 2006, 23(3):299-304
[13]	LAGERGREN S. About the theory of so-called adsorption of soluble substances[J]. Kungliga Svenska Vetenskapsakademiens Handlingar, 1898, 24(4):1-39
[14]	HO Y S, MCKAY G. Sorption of dye from aqueous solution by peat[J]. Chemical Engineering Journal, 1998, 70(2):115-124
[15]	刘贤伟. 好氧颗粒污泥的培养及其在工业废水处理中的应用研究[D]. 济南:山东大学, 2007
[16]	林芳芳. 改性花生壳对水中Cd²⁺和Pb²⁺的吸附特性研究[D]. 广州:华南理工大学, 2011
[17]	LI Xiaoli, QI Yongxin, LI Yanfeng, et al. Novel magnetic beads based on sodium alginate gel crosslinked by zirconium(IV) and their effective removal for Pb²⁺ in aqueous solutions by using a batch and continuous systems[J]. Bioresource Technology, 2013, 142:611-619
[18]	ZHAO Guixia, LI Jiaxing, WANG Xiangke. Kinetic and thermodynamic study of 1-naphthol adsorption from aqueous solution to sulfonated graphene nanosheets[J]. Chemical Engineering Journal, 2011, 173(1):185-190
[19]	KARTHIK R, MEENAKSHI S. Removal of Pb(Ⅱ) and Cd(Ⅱ) ions from aqueous solution using polyaniline grafted chitosan[J]. Chemical Engineering Journal, 2015, 263:168-177

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刘芳, 贺盛福, 张帆, 张晨. Cu (Ⅱ)和Cd (Ⅱ)在氧化石墨烯/聚酰胺-胺复合材料上的竞争吸附[J]. 环境工程学报, 2017, 11(2): 892-898. doi: 10.12030/j.cjee.201509251

引用本文:

刘芳, 贺盛福, 张帆, 张晨. Cu (Ⅱ)和Cd (Ⅱ)在氧化石墨烯/聚酰胺-胺复合材料上的竞争吸附[J]. 环境工程学报, 2017, 11(2): 892-898. doi: 10.12030/j.cjee.201509251

Citation:

Cu (Ⅱ)和Cd (Ⅱ)在氧化石墨烯/聚酰胺-胺复合材料上的竞争吸附

1. 吉首大学化学化工学院, 吉首 416000
2. 湖南省锰锌钒产业技术2011协同中心, 吉首 416000

收稿日期: 2015-11-13

基金项目:

国家自然科学基金资助项目（B061202）

吉首大学化学化工类专业校外实践基地开放项目（2014jdxm06）

湖南省教育厅重点项目（15A150）

关键词:

摘要: 以“grafting to”法制备的氧化石墨烯/聚酰胺-胺（GO/PAMAMs）作为吸附剂，研究了Cu（Ⅱ）和Cd（Ⅱ）在GO/PAMAMs上的竞争吸附行为，考察了溶液pH值、吸附时间、初始离子浓度及吸附剂用量等因素对吸附过程的影响，探讨了Cu（Ⅱ）和Cd（Ⅱ）在GO/PAMAMs上的竞争吸附机理。研究表明：GO/PAMAMs对Cu（Ⅱ）的吸附最佳pH值是5.0，Cd（Ⅱ）的最佳pH值为5.5；Cu（Ⅱ）和Cd（Ⅱ）在GO/PAMAMs上的竞争吸附过程符合Lagergren准二级动力学模型，等温吸附过程遵循Langmuir模型；热力学研究表明Cu（Ⅱ）和Cd（Ⅱ）在GO/PAMAMs上的吸附是自发进行的吸热过程，且属于物理吸附。

English Abstract

Competitive adsorption of Cu(Ⅱ) and Cd(Ⅱ) on GO/PAMAMs composites

1. College of Chemistry and Chemical Engineering, Jishou University, Jishou 416000, China
2. The Collaborative Innovation Center of Manganese-Zinc-Vanadium Industrial Technology(the 2011 Plan of Hunan Province), Jishou University, Jishou 416000, China

Received Date: 2015-11-13

Fund Project:

Keywords:

graphene oxide/polyamidoamine dendrimers (GO/PAMAMs) /
competitive adsorption /
Cu(Ⅱ) /
Cd(Ⅱ)

Abstract: Graphene oxide/polyamidoamine dendrimers (GO/PAMAMs) were prepared as adsorbents via a "grafting to" method, and the competitive adsorption behavior of Cu(Ⅱ) and Cd(Ⅱ) onto the GO/PAMAMs was studied. The effects of such factors as the solution pH, initial metal ion concentration, and adsorbent dosage were investigated, and the competitive adsorption mechanisms of Cu(Ⅱ) and Cd(Ⅱ) onto the GO/PAMAMs were also explored. The results indicated that the optimum pH values for the adsorption of Cu(Ⅱ) and Cd(Ⅱ) onto GO/PAMAMs were 5.0 and 5.5, respectively. The kinetics of the competitive adsorption of Cu(Ⅱ) and Cd(Ⅱ) onto GO/PAMAMs could be well described by a pseudo-second-order model, while the adsorption isotherm followed the Langmuir model. The thermodynamic results imply that the competitive adsorption of Cu(Ⅱ) and Cd(Ⅱ) is a spontaneous and endothermic physisorption process.

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Cu (Ⅱ)和Cd (Ⅱ)在氧化石墨烯/聚酰胺-胺复合材料上的竞争吸附

Competitive adsorption of Cu(Ⅱ) and Cd(Ⅱ) on GO/PAMAMs composites

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Cu (Ⅱ)和Cd (Ⅱ)在氧化石墨烯/聚酰胺-胺复合材料上的竞争吸附

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Competitive adsorption of Cu(Ⅱ) and Cd(Ⅱ) on GO/PAMAMs composites

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