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Impregnation of multiwall carbon nanotubes in alginate beads dramatically enhances their adsorptive ability to aqueous methylene blue
Bing Wang;  Bin Gao;  Andrew R.Zimmerman;  Xinqing Lee
2018
发表期刊Chemical Engineering Research & Design
卷号133页码:235-242
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. 

关键词Nanocomposites carbon Nanotubes sorbents contaminant Removal adsorption
收录类别SCI
语种英语
文献类型期刊论文
条目标识符http://ir.gyig.ac.cn/handle/42920512-1/8768
专题环境地球化学国家重点实验室
作者单位1.State Key Laboratory of Environmental Geochemistry, Institute of Geochemistry, Chinese Academy of Sciences, Guiyang 550081, China
2.Department of Agricultural and Biological Engineering, University of Florida, Gainesville, FL 32611, USA
3.Puding Karst Ecosystem Research Station, State Key Laboratory of Environmental Geochemistry, Institute of Geochemistry, Chinese Academy of Sciences, Puding, 562100, China
4.Department of Geological Sciences, University of Florida, Gainesville, FL 32611, USA
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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.
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