A magnetic multi-wall carbon nanotubes nanocomposite was used as an adsorbent for removal of Furazolidone and Cu(Ⅱ)from aqueous solutions. The influences of parameters including initial pH,dosage of adsorbent,contact time and temperature were investigated. The Langmuir and Freundlich adsorption models were used for the mathematical description of adsorption equilibrium. The experimental data were analyzed by the pseudo-first order,pseudo-second and intraparticle diffusion-order kinetic models. The obtained thermodynamic parameters such asΔ H0,Δ S0,Δ G0 calculated from adsorption process reveal that the adsorption process is a spontaneous,exothermic and physical process in the experimental temperature range. The results of the study show that the carbon nanotubes have good regeneration property and can be used as potential adsorbent for the removal of Furazolidone and Cu(Ⅱ)from aqueous solutions.%研究了磁性多壁碳纳米管对水中共存呋喃唑酮和Cu(II)的吸附过程,评估了初始pH、吸附剂的量和接触时间及温度等参数的影响。用准一级、准二级和粒子内扩散动力学模型及其Langmuir 和 Freundlich 等温线模型拟合了吸附动力学数据和等温吸附平衡数据,热力学参数(Δ H0、Δ S0、Δ G0)的计算表明,在实验的温度范围内呋喃唑酮和Cu(II)的吸附是自发、放热的物理过程。磁性多壁碳纳米管具有良好的再生性能,可以作为水处理中重金属离子和有机污染物的潜在吸附剂。
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