By a News Reporter-Staff News Editor at Science Letter -- Researchers detail new data in Fullerenes. According to news reporting originating from Changsha, People's Republic of China, by NewsRx correspondents, research stated, "Novel chitosan-modified magnetic graphitized multi-walled carbon nanotubes (CS-m-GMCNTs) were synthesized via a suspension cross-linking method. Composition, morphology and magnetic properties of as-prepared CS-m-GMCNTs were characterized by XRD, SEM-EDS, BET and VSM."
Our news editors obtained a quote from the research from Hunan University, "The large saturation magnetization (12.27 emu g(-1)) allows fast separation of CS-m-GMCNTs from treated aqueous solution. The adsorption of congo red (CR) on CS-m-GMCNTs was strongly dependent on pH, temperature of the aqueous phase and adsorbent dosage. Up to 100 and 94.58% color removal could be achieved in 100 min contact time with 10 and 50 mg L-1 of initial concentrations, respectively. The adsorption capacity of CR onto CS-m-GMCNTs could reach 262.9 mg g-1. The pseudo-second-order kinetic model with high correlation coefficients (R-2 >0.999) was suitable to describe the process of CR adsorption onto CS-m-GMCNTs. The Langmuir model fitted the adsorption isotherm data better than the Freundlich model. Values of thermodynamic parameters (4G, 4H and A,S) indicated that the adsorption process was strongly dependent on temperature of the aqueous phase, and spontaneous and endothermic process in nature."
According to the news editors, the research concluded: "Therefore, CS-m-GMCNTs adsorbent displays main advantages of excellent dispersion, convenience separation and high adsorption capacity, which implies their potential application in the environmental cleanup."
For more information on this research see: Preparation, characterization and adsorption properties of chitosan modified magnetic graphitized multi-walled carbon nanotubes for highly effective removal of a carcinogenic dye from aqueous solution. Applied Surface Science, 2013;285():865-873. Applied Surface Science can be contacted at: Elsevier Science Bv, PO Box 211, 1000 Ae Amsterdam, Netherlands. (Elsevier - www.elsevier.com; Applied Surface Science - www.elsevier.com/wps/product/cws_home/505669)
The news editors report that additional information may be obtained by contacting H.Y. Zhu, Hunan Univ, Minist Educ, Key Lab Environm Biol & Pollut Control, Changsha 410082, Hunan, People's Republic of China. Additional authors for this research include Y.Q. Fu, R. Jiang, J. Yao, L. Liu, Y.W. Chen, L. Xiao and G.M. Zeng (see also Fullerenes).
Keywords for this news article include: Asia, Changsha, Fullerenes, Nanotechnology, Emerging Technologies, People's Republic of China, Multiwalled Carbon Nanotube
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