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通过静态吸附与解吸实验，从7种大孔吸附树脂中筛选出对纽莫康定B0具有良好吸附效果的树脂，结果表明HZ-816树脂对纽莫康定B0具有良好吸附性能。HZ-816对纽莫康定B0的吸附符合Freundlich等温吸附方程，热力学参数ΔG0<0、ΔH0<0、ΔS0<0，说明该吸附为放热的物理吸附，吸附体系朝着自由能减少的方向进行。吸附动力学方程拟合结果表明，Lagergren二阶动力学模型更适用于描述HZ-816对纽莫康定B0的吸附过程；同时HZ-816对纽莫康定B0的吸附过程中颗粒内扩散为整个过程的控制步骤。
Abstract：The results show that HZ-816 resin has good adsorption performance on pneumocandin B0.The adsorption of pneumocandin B0 by HZ-816 conforms to the Freundlich isothermal adsorption equation with the thermodynamic parameters ΔG0<0,ΔH 0<0 and ΔS0<0.This indicates that the adsorption is exothermic physisorption and the adsorption system proceeds in the direction of free energy reduction.The results of fitting the adsorption kinetic equations showed that the Lagergren second-order kinetic model was more suitable for describing the adsorption process of HZ-816 on pneumocandin B0;meanwhile,the intraparticle diffusion in the adsorption process of HZ-816 on pneumocandin B0 was the control step of the whole process.
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基本信息:
DOI：10.16026/j.cnki.iea.2023050419
中图分类号:TQ28;TQ424
引用信息:
[1]龚剑,宁方红,徐环昕,等.大孔树脂对纽莫康定B_0的吸附行为研究[J].离子交换与吸附,2023,39(05):431-439.DOI:10.16026/j.cnki.iea.2023050419.
2023-10-20
2023-10-20