Design and synthesis of bimetallic complexes as bifunctional molecular devices for simultaneously detection and degradation of industrial pollutants (UGC/ECS)

Selective detection and efficient degradation of persistent industrial pollutants are major challenges in the world. Stable chemosensors that can provide reliable readouts and quick responses and advanced catalysts that can quickly oxidize and mineralize organic contaminants are in high demand. In this context, a smart molecular device that can automatically degrade selected organic pollutants when specific levels reach a certain detection threshold is highly desirable. This allosteric approach has the advantage of trimming down the loading of chemicals (e.g., H2O2), catalysts (e.g., transition metal complexes), and energy (e.g., continuous UV irradiation) using the traditional degradation processes. In this project, we will address three research questions arising from our preliminary results: (i) the mechanism of such a bimetallic complex that can function simultaneously as a chemosensor and a photo-Fenton catalyst, (ii) the design and synthesis of other cyano-bridged bimetallic complexes with similar bifunctional properties for the chemosensing of other selected analytes and the advanced degradation of organic pollutants, and (iii) the application of these new types of molecular devices in environmental monitoring and waste treatment in the real world.

Funding Source: RGC - Early Career Scheme (ECS)