Sodium, rubidium and cesium ions adsorption by Prussian blue(PB)
Tan Guo, Shan Yun, Huaju Li, Xiufang Zhu, Xiaoyan Gao
Available Online November 2016.
- https://doi.org/10.2991/icache-16.2016.51How to use a DOI?
- Sodium, Rubidium; Cesium, Prussian blue, Adsorption
- The adsorption of alkali metal ions onto prepared Prussian blue (PB) was investigated in single-element solutions. The released quantities of K+ constitutive of PB were measured in course of adsorption time. Acidification occurred in these solutions because of decrease in pH values after adsorption. The PB was examined by Energy dispersive spectroscopy (EDS) technique. The results showed that the equilibrium adsorption capacities was in the sequence Cs+ > Rb+ > Na+. The mechanisms for the adsorption of Na+, Rb+ and Cs+ onto PB were deduced comprehensively as ion exchange with K+ and trapping through H+. The selectivity sequence was Rb+ > Cs+ Na+ for ion exchange with K+ because of the ionic radius of Rb+ similar to that of K+. The adsorption mechanism was dependent of ion trapping through H+ leading to the sequence of Cs+ > Rb+ > Na+ owing to the size of their hydrated radius.
- Open Access
- This is an open access article distributed under the CC BY-NC license.
Cite this article
TY - CONF AU - Tan Guo AU - Shan Yun AU - Huaju Li AU - Xiufang Zhu AU - Xiaoyan Gao PY - 2016/11 DA - 2016/11 TI - Sodium, rubidium and cesium ions adsorption by Prussian blue(PB) BT - 2016 2nd International Conference on Architectural, Civil and Hydraulics Engineering (ICACHE 2016) PB - Atlantis Press SP - 272 EP - 275 SN - 2352-5401 UR - https://doi.org/10.2991/icache-16.2016.51 DO - https://doi.org/10.2991/icache-16.2016.51 ID - Guo2016/11 ER -