A new sensitive organic/inorganic hybrid material based on titanium oxide for the potentiometric detection of iron(III)

Add time:07/14/2019    Source:sciencedirect.com

The formation of a new hybrid material based on titanium dioxide as inorganic support and containing an iron organochelator (ICL670) is described. An organophosphorous coupling agent was used to graft the organic molecule on the oxide surface. The attachment of the organic substrate was well-confirmed by FTIR (DRIFT), solid-state 31P and 13C CPMAS NMR, thermal analysis and the integrity of the structural and morphological parameters were verified using XRD and TEM analyses. The interaction between the material and dissolved iron(III) was also investigated through potentiometric measurements and demonstrated the interest of this new non-siliceous based hybrid material. The obtained linear evolution of the open circuit potential from 10−2 to 10−6 mol L−1 can be used for the analytical detection of iron(III).

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