Modification of Nanocrystalline TiO2 with Phosphonate- and Bis(phosphonate)-Bearing Macrocyclic Complexes: Sorption and Stability Studies

Result code in IS VaVaI
<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F00216208%3A11310%2F11%3A10105354" target="_blank" >RIV/00216208:11310/11:10105354 - isvavai.cz</a>
Alternative codes found
RIV/60460709:41210/11:52406
Result on the web
<a href="http://dx.doi.org/10.1002/ejic.201001100" target="_blank" >http://dx.doi.org/10.1002/ejic.201001100</a>
DOI - Digital Object Identifier
<a href="http://dx.doi.org/10.1002/ejic.201001100" target="_blank" >10.1002/ejic.201001100</a>

Result language
angličtina
Original language name
Modification of Nanocrystalline TiO2 with Phosphonate- and Bis(phosphonate)-Bearing Macrocyclic Complexes: Sorption and Stability Studies
Original language description
The first systematic study of chemical adsorption and desorption of phosphonic acid and geminal bisphosphonic acid on/from the surface of anatase nanoparticles is reported. Stable TiO2 colloidal nanodispersions were used in the study. The colloidal stability is preserved upon the nanoparticle modification. Macrocyclic lanthanide(III) complex, attached through phosphonic/ bisphosphonic group to TiO2 surface allowed precise quantification of sorption parameters via ICP-AES. Results show different behaviorof phosphonate and bisphosphonate groups. For phosphonate, a monomolecular layer formation was observed and the desorption rate depends on the sorption conditions. It is probably caused by different phosphonate binding modes on the surface. Excess of phosphate in washing media accelerates desorption rate of the phosphonate. The bisphosphonate is adsorbed on the surface in large quantities forming multilayers which resist desorption even in the presence of phosphate ions and, thus, bisph
Czech name
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Czech description
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Type
J<sub>x</sub> - Unclassified - Peer-reviewed scientific article (Jimp, Jsc and Jost)
CEP classification
CA - Inorganic chemistry
OECD FORD branch
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Project
Result was created during the realization of more than one project. More information in the Projects tab.
Continuities
P - Projekt vyzkumu a vyvoje financovany z verejnych zdroju (s odkazem do CEP)<br>Z - Vyzkumny zamer (s odkazem do CEZ)<br>S - Specificky vyzkum na vysokych skolach

Publication year
2011
Confidentiality
S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

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