An Ultrasensitive and Selective Metal-Organic Framework Chemosensor for Palladium Detection in Water

Aasif Helal; Ha L Nguyen; Amir Al-Ahmed; Kyle E Cordova; Zain H Yamani

doi:10.1021/acs.inorgchem.8b02871

An Ultrasensitive and Selective Metal-Organic Framework Chemosensor for Palladium Detection in Water

Inorg Chem. 2019 Feb 4;58(3):1738-1741. doi: 10.1021/acs.inorgchem.8b02871. Epub 2019 Jan 14.

Authors

Aasif Helal, Ha L Nguyen¹, Amir Al-Ahmed, Kyle E Cordova¹, Zain H Yamani

Affiliation

¹ Department of Chemistry and Berkeley Global Science Institute , University of California, Berkeley , Berkeley , California 94720 , United States.

PMID: 30638368
DOI: 10.1021/acs.inorgchem.8b02871

Abstract

A new europium-based metal-organic framework, termed KFUPM-3, was constructed using an allyloxy-functionalized linker. As a result of coordinative interactions between the allyloxy moieties and Pd²⁺, highly selective changes in both the absorption and emission spectra of KFUPM-3 were observed. Accordingly, KFUPM-3 was demonstrated to have an ultrasensitive Pd²⁺ detection limit (44 ppb), regenerative properties without loss in performance, detection of palladium in different oxidation states and in the presence of other competitor metal ions, and fully functional sensing capabilities over a wide pH range.