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Adsorption behavior of molybdenum onto D314 ion exchange resin
  • 期刊名称:Journal of Central South Universoty
  • 时间:2014.12.1
  • 页码:4445-4449
  • 分类:O647.3[理学—物理化学;理学—化学] TQ425.23[化学工程]
  • 作者机构:[1]School of Metallurgy and Environment, Central South University, Changsha 410083, China
  • 相关基金:Project(51104186)supported by the National Natural Science Foundation of China
  • 相关项目:阴离子交换树脂吸附低pH值溶液中钼的机理研究
中文摘要:

The adsorption behavior of molybdenum onto D314 was studied with the static adsorption method. The adsorption process was analyzed from thermodynamic and kinetic aspects. The experimental results show that the equilibrium adsorption data conform satisfactorily to the Langmuir equation. In the adsorption process of D314 for molybdenum, the enthalpy change ΔH is positive when temperature is in the range of 298-338 K, which indicates that the adsorption is an endothermic process, and the elevated temperature benefits to the adsorption. Kinetic analysis shows that the adsorption rate is controlled by intraparticle diffusion and chemical diffusion at the same time. The adsorption mechanism of molybdenum onto D314 was discussed based on IR spectra.

英文摘要:

The adsorption behavior of molybdenum onto D314 was studied with the static adsorption method. The adsorption process was analyzed from thermodynamic and kinetic aspects. The experimental results show that the equilibrium adsorption data conform satisfactorily to the Langmuir equation. In the adsorption process of D314 for molybdenum, the enthalpy change ΔH is positive when temperature is in the range of 298-338 K, which indicates that the adsorption is an endothermic process, and the elevated temperature benefits to the adsorption. Kinetic analysis shows that the adsorption rate is controlled by intraparticle diffusion and chemical diffusion at the same time. The adsorption mechanism of molybdenum onto D314 was discussed based on IR spectra.

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