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Impregnation of multiwall carbon nanotubes in alginate beads dramatically enhances their adsorptive ability to aqueous methylene blue

文献类型：期刊论文

作者Bing Wang;  Bin Gao;  Andrew R.Zimmerman;  Xinqing Lee
刊名Chemical Engineering Research & Design
出版日期2018
卷号133页码:235-242
关键词Nanocomposites carbon Nanotubes sorbents contaminant Removal adsorption
英文摘要

In this work, novel environmentally benign nanocomposites, carboxyl functionalized multiwall carbon nanotubes (MWCNT-COOH) impregnated into calcium-alginate (CA) beads (CA-MWCNT-COOH), were tested for their abilities to remove a common dye contaminant, methylene blue (MB), from aqueous solution. Kinetic studies showed that the adsorption process of CA-MWCNT-COOH had similar speed to that of CA beads but was slower than that of undispersed MWCNT-COOH. With a Langmuir maximum MB adsorption capacity of 1189 mg g(-1), the CA-MWCNT-COOH performed best, outperforming both CA beads alone (1144.7 mg g(-1)) and the undispersed MWCNT-COON (33.4 mg g(-1)). Furthermore, the impregnation also dramatically enhanced the adsorption of MB onto other types of MWCNTs, indicating CA beads are an excellent supporting material to disperse and stabilize carbon nanotubes for their optimal application as a high-capacity adsorbent. 
语种英语
源URL[http://ir.gyig.ac.cn/handle/42920512-1/8768]  
专题地球化学研究所_环境地球化学国家重点实验室
作者单位1.Puding Karst Ecosystem Research Station, State Key Laboratory of Environmental Geochemistry, Institute of Geochemistry, Chinese Academy of Sciences, Puding, 562100, China
2.Department of Agricultural and Biological Engineering, University of Florida, Gainesville, FL 32611, USA
3.State Key Laboratory of Environmental Geochemistry, Institute of Geochemistry, Chinese Academy of Sciences, Guiyang 550081, China
4.Department of Geological Sciences, University of Florida, Gainesville, FL 32611, USA
推荐引用方式
GB/T 7714		 Bing Wang；Bin Gao；Andrew R.Zimmerman；Xinqing Lee. Impregnation of multiwall carbon nanotubes in alginate beads dramatically enhances their adsorptive ability to aqueous methylene blue[J]. Chemical Engineering Research & Design,2018,133:235-242.
APA Bing Wang；Bin Gao；Andrew R.Zimmerman；Xinqing Lee.(2018).Impregnation of multiwall carbon nanotubes in alginate beads dramatically enhances their adsorptive ability to aqueous methylene blue.Chemical Engineering Research & Design,133,235-242.
MLA Bing Wang；Bin Gao；Andrew R.Zimmerman；Xinqing Lee."Impregnation of multiwall carbon nanotubes in alginate beads dramatically enhances their adsorptive ability to aqueous methylene blue".Chemical Engineering Research & Design 133(2018):235-242.

入库方式： OAI收割

来源：地球化学研究所

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