摘要
Micron-sized monodisperse superparamagnetic polyglycidyl methacrylate (PGMA) particles with functional amino groups were prepared and characterized by SEM, FT-IR and XRD, respectively. The effect of pH value on the adsorption was studied. Their adsorption properties and mechanism for Cr(VI) from wastewater were investigated. In a model system, the adsorption process followed the Langmuir adsorption isotherm, and the maximum sorption capacity of was calculated to be 263.16 mg/g at 308 K and pH 4.5. The adsorption of Cr(VI) capacity reached equilibrium within 15 min and followed pseudo second order kinetics. The adsorption was a spontaneous and endothermic process with ΔH0=9.63 kJ/mol.
源语言 | 英语 |
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页(从-至) | 554-560 |
页数 | 7 |
期刊 | Guocheng Gongcheng Xuebao/The Chinese Journal of Process Engineering |
卷 | 11 |
期 | 4 |
出版状态 | 已出版 - 8月 2011 |
已对外发布 | 是 |