Bifunctional Paramagnetic and Luminescent Clays Obtained by Incorporation of Gd3+ and Eu3+ Ions in the Saponite Framework | Zendy

Stefano Marchesi | Zendy; Chiara Bisio | Zendy; Daniela Lalli | Zendy; Leonardo Marchese | Zendy; Carlos PlatasIglesias | Zendy; Fabio Carniato | Zendy

Open Access

Bifunctional Paramagnetic and Luminescent Clays Obtained by Incorporation of Gd³⁺ and Eu³⁺ Ions in the Saponite Framework

Author(s) -

Stefano Marchesi,

Chiara Bisio,

Daniela Lalli,

Leonardo Marchese,

Carlos PlatasIglesias,

Fabio Carniato

Publication year - 2021

Publication title -

inorganic chemistry

Language(s) - English

Resource type - Journals

SCImago Journal Rank - 1.348

H-Index - 233

eISSN - 1520-510X

pISSN - 0020-1669

DOI - 10.1021/acs.inorgchem.1c01455

Subject(s) - saponite , europium , chemistry , paramagnetism , lanthanide , luminescence , bifunctional , gadolinium , photoluminescence , inorganic chemistry , ion , spectroscopy , mineralogy , clay minerals , materials science , organic chemistry , physics , optoelectronics , quantum mechanics , catalysis

A novel bifunctional saponite clay incorporating gadolinium (Gd 3+ ) and europium (Eu 3+ ) in the inorganic framework was prepared by one-pot hydrothermal synthesis. The material exhibited interesting luminescent and paramagnetic features derived from the co-presence of the lanthanide ions in equivalent structural positions. Relaxometry and photoluminescence spectroscopy shed light on the chemical environment surrounding the metal sites, the emission properties of Eu 3+ , and the dynamics of interactions between Gd 3+ and the inner-sphere water placed in the saponite gallery. The optical and paramagnetic properties of this solid make it an attractive nanoplatform for bimodal diagnostic applications.

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