摘要
用静态法研究了8-羟基喹哪啶螯合树脂在酸性溶液中吸附和解吸Pd(Ⅱ)的性能,分析了吸附等温线和吸附动力学过程。结果表明,在0.6 mol/L HCl的介质中,树脂对Pd(Ⅱ)的饱和吸附量为99.46mg/g,吸附率为94.7%,解吸率达到95.6%;吸附过程符合Langmuir和Freundlich等温吸附模型,准二级动力学Lagergren方程更适合描述此吸附过程。
The property of 8-hydroxyquinoline chelate resin(PS-HQD) for adsorption and desorption Pd(Ⅱ) from solution were studied with static adsorption, and the adsorption isotherm and kinetics were analyzed. The results showed that saturated adsorption capacity was 99.46 mg/g, adsorption and desorbtion rate of PS-HQD could reach 94.7% and 95.6% in 0.6 mol/L HCl solution, respectively. The equilibrium adsorption followed to both Langmuir and Freundlich isotherms models, and the Lgergren pseudo-second order kinetic model was more suitable for describing the adsorption process.
作者
周小华
ZHOU Xiaohua(Kunming Cooperative Research Center for Pollution Prevention of Dianchi (Lake), Kunming University, Kunming 650214, China)
出处
《贵金属》
CAS
CSCD
北大核心
2019年第1期25-29,共5页
Precious Metals
基金
昆明学院引进人才科技项目(YJL18009)
昆明滇池国家旅游度假区环保局项目(HX190001)
