13-18 May 2018
Casino Conference Centre
Europe/Prague timezone

Facile Synthesis and Characterisation of NaBiO3 nano-sheets and Selectivly Adsorbtion of Ce3+

14 May 2018, 17:15
1h 30m
Gallery (Casino Conference Centre)

Gallery

Casino Conference Centre

Poster Separation Methods, Speciation Poster SEP

Speaker

Dr Ning Wang (Institue of Nuclear Physics and Chemistry, China Academy of Engineering Physics)

Description

The NaBiO3 nano-sheets were syntheized by a facile method of oxidizing Bi3+ in alkaline solution. The as-syntheized products were used to adsorb Ce3+ in solution and characterized by XRD, SEM, TEM and XPS. The results show that the synthized products have nano-sheets structure with a size of ~50 nm and high selective adsorption performance on Ce3+. After adsorbtion of Ce3+, all Na cations in NaBiO3 nano-sheets have been fully exchanged and replaced by Ce cations and the chemical state of Ce and Bi were Ce4+ and Bi3+ in the generated products. The XPS analysis shows that Bi5+ species were changed into Bi3+ species in the adsorbtion process of Ce3+. So the adsorption process of Ce3+ contains two process of the ion-exchange between Ce3+ and Na+ cations and the oxidation of Ce3+ species, and the selective adsorption process of Ce3+ ion was achieved by an ion-exchange and redox reaction process.

Primary authors

Dr Ning Wang (Institue of Nuclear Physics and Chemistry, China Academy of Engineering Physics) Dr Chu-Ting Yang (Institue of Nuclear Physics and Chemistry, China Academy of Engineering Physics) Prof. Sheng Hu (Institue of Nuclear Physics and Chemistry, China Academy of Engineering Physics)

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