Influence of structural characteristics on sorption properties of lithium-selective composite materials based on TiO<sub>2</sub> and MnO<sub>2</sub>

  • M. O. Chaban Vernadsky Institute of General and Inorganic Chemistry of National Academy of Sciences of Ukraine
  • L. M. Rozhdestvenska Vernadsky Institute of General and Inorganic Chemistry of National Academy of Sciences of Ukraine
  • A. V. Palchik Vernadsky Institute of General and Inorganic Chemistry of National Academy of Sciences of Ukraine
  • V. M. Belyakov Vernadsky Institute of General and Inorganic Chemistry of National Academy of Sciences of Ukraine
DOI: https://doi.org/10.15407/hftp05.03.303
Keywords: titanium dioxide, manganese dioxide, lithium, ion exchange selectivity

Abstract

Novel composite materials with equimolar ratio of TiO2 to MnO2 have been synthetized. Using the low-temperature N2 adsorption method their structural characteristics were calculated; and their influence on selectivity and kinetics of lithium sorption was shown. It was proved that sorption characteristics of the obtained materials are defermined by conditions of heat treatment during the synthesis. Higher temperatures provoke agglomeration of sorbent and decrease in its kinetic characteristics. At the same time, more lithium-selective sorption sites are formed and the selectivity of sorption increases. By the proposed synthesis method a highly selective to lithium ion-exchange material was obtained.

References

1. Nishihama S., Onishi K., Yoshizuka K. Selective recovery process of lithium from seawater using integrated ion exchange methods. Solvent Extr. Ion Exch. 2011. 29(3): 421.  https://doi.org/10.1080/07366299.2011.573435

2. Hunter James C. Preparation of a new crystal form of manganese dioxide: λ-MnO2. J. Solid State Chem. 1981. 39(2): 142.  https://doi.org/10.1016/0022-4596(81)90323-6

3. Chitrakar R., Kanoh H., Miyai Y., Ooi K. A new type of manganese oxide (MnO2·0.5H2O) derived from Li1.6Mn1.6O4 and its lithium ion-sieve properties. Chem. Mater. 2000. 12(10): 3151.  https://doi.org/10.1021/cm0000191

4. Feng Q., Kanoh H., Ooi K. Manganese oxide porous crystals. J. Mater. Chem. 1999. 9: 319.  https://doi.org/10.1039/a805369c

5. Tretyak M.O., Rozhdestvenska L.M., Belyakov V.N. Inorganic ion exchange materials based on hydrated titanium dioxide as selective ionites for lithium ion recovery. Ukr. Chem. J. 2013. 79: 15. [in Russian].

How to Cite
CHABAN, M. O.; ROZHDESTVENSKA, L. M.; PALCHIK, A. V.; BELYAKOV, V. M. Influence of structural characteristics on sorption properties of lithium-selective composite materials based on TiO<sub>2</sub> and MnO<sub>2</sub&gt;. Chemistry, Physics and Technology of Surface, v. 5, n. 3, p. 303-308, 11.
Issue
Vol. 5 No. 3 (2014): Chemistry, Physics and Technology of Surface / Himia, Fizika ta Tehnologia Poverhni
Section
Articles
  1. Authors retain copyright and grant the journal right of first publication with the work simultaneously licensed under a Creative Commons Attribution License that allows others to share the work with an acknowledgement of the work's authorship and initial publication in this journal.
  2. Authors are able to enter into separate, additional contractual arrangements for the non-exclusive distribution of the journal's published version of the work (e.g., post it to an institutional repository or publish it in a book), with an acknowledgement of its initial publication in this journal.
  3. Authors are permitted and encouraged to post their work online (e.g., in institutional repositories or on their website) prior to and during the submission process, as it can lead to productive exchanges, as well as earlier and greater citation of published work.