Competitive adsorption of Ni (II) and Cr (VI) ions on polypyrrole/attapulgite | |
Xu, Hui1![]() ![]() | |
2014-09-01 | |
发表期刊 | Gaofenzi Cailiao Kexue Yu Gongcheng/Polymeric Materials Science and Engineering
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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. |
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