Lanthanide-grafted hollow bipyridine-based periodic mesoporous organosilicas as chemical sensors

Wanlu Liu; Chunhui Liu; Luca Pilia; Hongliang Zhang; Pascal Van Der Voort; Anna M Kaczmarek; Rik Van Deun

doi:10.1039/d3dt01021j

Lanthanide-grafted hollow bipyridine-based periodic mesoporous organosilicas as chemical sensors

Dalton Trans. 2023 Aug 29;52(34):11949-11957. doi: 10.1039/d3dt01021j.

Authors

Wanlu Liu^{1

2

3}, Chunhui Liu^{2

3}, Luca Pilia⁴, Hongliang Zhang⁵, Pascal Van Der Voort³, Anna M Kaczmarek², Rik Van Deun¹

Affiliations

¹ L3 - Luminescent Lanthanide Lab, Department of Chemistry, Ghent University, Krijgslaan 281-S3, 9000 Ghent, Belgium.
² NanoSensing Group, Department of Chemistry, Ghent University, Krijgslaan 281S3, 9000 Ghent, Belgium.
³ Center for Ordered Materials, Organometallics and Catalysis (COMOC), Department of Chemistry, Ghent University, Krijgslaan 281-S3, 9000 Ghent, Belgium.
⁴ Department of Mechanical, Chemical and Materials Engineering, University of Cagliari, Via Marengo 2, 09123 Cagliari, Italy.
⁵ Shenzhen University General Hospital, Shenzhen University, Shenzhen 518060, P.R. China.

PMID: 37577986
DOI: 10.1039/d3dt01021j

Abstract

We have synthesized a co-condensed hollow ethane-bipyridine periodic mesoporous organosilica (HEt-bpy-PMO) as a host material to anchor lanthanides for the purpose of developing a multifunctional chemical sensor. The host material was grafted with lanthanide chloride salts or complexes. The luminescence properties of the developed series of hybrid materials were studied in detail in the solid-state and after dispersing in water. The Eu³⁺ or Tb³⁺ singly incorporated materials were investigated for their use as ion sensors, showing ions selectivity towards Cu²⁺, Co²⁺ and Fe³⁺. Additionally, the Eu³⁺ or Tb³⁺ incorporated materials showed obvious luminescence quenching behavior towards acetone compared to other organic solvents, indicating excellent acetone sensing selectivity.