Competitive adsorption of Ni (II) and Cr (VI) ions on polypyrrole/attapulgite

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	Competitive adsorption of Ni (II) and Cr (VI) ions on polypyrrole/attapulgite
	Xu, Hui1 ; Chen, Yong1 ; Tan, Jing 2; Wang, Wei 1
	2014-09-01
发表期刊	Gaofenzi Cailiao Kexue Yu Gongcheng/Polymeric Materials Science and Engineering
ISSN	10007555
卷号	30 期号:9 页码:140-144
摘要	Polypyrrole/attapulgite (PPy/ATP) composite material was synthesized by in-situ polymerization using ferric chloride (FeCl3) as oxidant. Infrared spectroscopy (FT-IR) and scanning electron microscopy (SEM) were used to characterize the composite material. The adsorptive property for Ni(II),Cr(VI) in water was investigated. The main factors of impacting the adsorption rate, thermodynamic properties and adsorption isotherms of Ni(II) and Cr(VI) on the composite were analyzed. The results show that the adsorptive property of the composite materials on Cr(VI) is obviously better than that on Ni(II). The optimum conditions are found to be m(py):m(ATP) of 1:1, PPy/ATP mass of 0.06 g, contact time of 1h. The thermodynamics of Cr(VI) ion adsorption on the composites follows the isothermal adsorption equations of Langmuir, while the thermodynamics of Ni(II) ion can be described by the Freundlich equations. The maximum theoretical adsorption capacity of Cr(VI) is found to be 139.41 mg/g, based on the non-linear Langmuir isotherm. SEM photos exhibit that composites still maintain rod-like structure and ATP surface is covered by PPy particles.
关键词	Adsorption Adsorption isotherms Chlorination Chlorine compounds Composite materials Glass ceramics Infrared spectroscopy Ions Iron compounds Nickel compounds Polypyrroles Scanning electron microscopy Adsorption capacities Adsorptive properties Attapulgite clay Competitive adsorption Freundlich equations In-situ polymerization Isothermal adsorption equations Rod-like structures
收录类别	EI
语种	中文
出版者	Chengdu University of Science and Technology
EI入藏号	20144400132455
EI主题词	Chromium compounds
EI分类号	802.2 Chemical Reactions - 802.3 Chemical Operations - 815.1.1 Organic Polymers - 951 Materials Science
来源库	Compendex
分类代码	802.2 Chemical Reactions - 802.3 Chemical Operations - 815.1.1 Organic Polymers - 951 Materials Science
文献类型	期刊论文
条目标识符	https://ir.lut.edu.cn/handle/2XXMBERH/113539
专题	石油化工学院
作者单位	1.College of Petrochemical Technology, Lanzhou University of Technology, Lanzhou; 730050, China; 2.Applied Chemistry Department, Lanzhou Petrochemical College of Vocational Technology, Lanzhou; 730060, China
第一作者单位	兰州理工大学
第一作者的第一单位	兰州理工大学
推荐引用方式 GB/T 7714	Xu, Hui,Chen, Yong,Tan, Jing,et al. Competitive adsorption of Ni (II) and Cr (VI) ions on polypyrrole/attapulgite[J]. Gaofenzi Cailiao Kexue Yu Gongcheng/Polymeric Materials Science and Engineering,2014,30(9):140-144.
APA	Xu, Hui,Chen, Yong,Tan, Jing,&Wang, Wei.(2014).Competitive adsorption of Ni (II) and Cr (VI) ions on polypyrrole/attapulgite.Gaofenzi Cailiao Kexue Yu Gongcheng/Polymeric Materials Science and Engineering,30(9),140-144.
MLA	Xu, Hui,et al."Competitive adsorption of Ni (II) and Cr (VI) ions on polypyrrole/attapulgite".Gaofenzi Cailiao Kexue Yu Gongcheng/Polymeric Materials Science and Engineering 30.9(2014):140-144.