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

CORC > 兰州理工大学 > 兰州理工大学 > 石油化工学院

	Competitive adsorption of Ni (II) and Cr (VI) ions on polypyrrole/attapulgite
	Xu, Hui 2; Chen, Yong 2; Tan, Jing 1; Wang, Wei 2
刊名	Gaofenzi Cailiao Kexue Yu Gongcheng/Polymeric Materials Science and Engineering
	2014-09-01
卷号	30 期号:9 页码:140-144
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
ISSN号	10007555
英文摘要	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.
语种	中文
出版者	Chengdu University of Science and Technology
内容类型	期刊论文
源URL	[http://ir.lut.edu.cn/handle/2XXMBERH/113539]
专题	石油化工学院
作者单位	1.Applied Chemistry Department, Lanzhou Petrochemical College of Vocational Technology, Lanzhou; 730060, China 2.College of Petrochemical Technology, Lanzhou University of Technology, Lanzhou; 730050, China;
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.