Removal of Methyl Orange from Aqueous Solution by Calcium Alginate/Multi-walled Carbon Nanotubes Composite Fibers

作者：Yujin Li, Kunyan Sui, Rongzhan Liu, Xin Zhao, Yang Zhang, Hongchao Liang, Yanzhi Xia · 发表于：Energy Procedia · 年份：2012 · DOI：10.1016/j.egypro.2012.01.138 · 被引用次数：53 · 研究领域：Adsorption and biosorption for pollutant removal

Adsorbent of calcium alginate/multi-walled carbon nanotubes (CA/MWCNTs) composite fiber was prepared by wet spinning. Adsorptions of methyl orange (MO) anionic dyes onto CA/MWCNTs composite fiber were investigated with respect to MWCNTs content, initial dye concentration and pH values. Results illustrated that introduction of MWCNTs could obviously increase the adsorption capacity (qe) of MO onto CA/MWCNTs composite fibers. The equilibrium adsorption data were analyzed using two widely applied isotherms: Langmuir and Freundlich. The results showed that Langmuir isotherm fitted the experimental results well.