Osmotic contribution to the flow-driven tube formation of copper-phosphate and copper-silicate chemical gardens

Evelin Rauscher, Gábor Schuszter, Bíborka Bohner, Ágota Tóth, Dezso Horváth

Research output: Contribution to journalArticle

8 Citations (Scopus)

Abstract

We have produced hollow copper-containing precipitate tubes using a flow-injection technique, and characterized their linear and volume growth. It is shown that the ratio of the volume increase rate to that of pumping is constant independent of the chemical composition. It is also found that osmosis significantly contributes to the tube growth, since the inward flux of chemical species dominates during the precipitate pattern formation. The asymmetric hydrodynamic field coupled with the inherent concentration and pH gradients results in different particle morphology on the two sides of the precipitate membrane. While the tubes have a smooth outer surface, the inner walls are covered with nanoflowers for copper phosphate and with nanoballs for copper silicate.

Original languageEnglish
Pages (from-to)5766-5770
Number of pages5
JournalPhysical Chemistry Chemical Physics
Volume20
Issue number8
DOIs
Publication statusPublished - 2018

ASJC Scopus subject areas

  • Physics and Astronomy(all)
  • Physical and Theoretical Chemistry

Fingerprint Dive into the research topics of 'Osmotic contribution to the flow-driven tube formation of copper-phosphate and copper-silicate chemical gardens'. Together they form a unique fingerprint.

  • Cite this