期刊
JOURNAL OF INORGANIC AND ORGANOMETALLIC POLYMERS AND MATERIALS
卷 30, 期 4, 页码 1197-1205出版社
SPRINGER
DOI: 10.1007/s10904-019-01256-3
关键词
Adsorption; Langmuir; Freundlich; Temkin; Dubinin-Radushkevich
The microporous tin dioxide nanoparticles (SnO2 NPs) were synthesized by sol-gel method using isopropyl alcohol exhibit high surface area (128 m(2)/g). The crystal phase and geometry of SnO2 NPs was studied by X-ray diffractometer and the calculated crystallite size is 15.78 nm. The percentage composition and purity was confirmed by energy dispersive X-ray analysis. The morphology was examined through scanning electron microscopy which confirm the presence of the grains, cluster and agglomerated particles in the sample. The space groups were assigned to different vibrational modes of the SnO2 NPs on the basis of Raman spectroscopy. The surface functional moieties were identified by Fourier transform infrared spectroscopy. The batch method was used for the sorption of cadmium (Cd2+) ions from aqueous solution at pH 5. The Langmuir, Freundlich, Temkin and Dubinin-Radushkevich (D-R) models were applied to the adsorption data to determine the nature adsorption process, binding energy and maximum sorption capacity of the adsorbent. A set of equations were used to study the thermodynamic feasibility and endothermic nature of the adsorption process while the ions exchange mechanism was found to be 1:1.
作者
我是这篇论文的作者
点击您的名字以认领此论文并将其添加到您的个人资料中。
推荐
暂无数据