Development and evaluation of a photocatalytic system to reduce and valorize CO2

Résumé :

This work focuses on the development of a photocatalytic system for CO₂ reduction and valorization, contributing to sustainable carbon conversion strategies. The study investigates Cu₂O nanowire (NW)-based photocatalyst, selected for their visible-light activity, abundance, and low toxicity.

A simple, scalable, and cost-effective fabrication strategy was developed to produce such photocatalyst. To enhance performance and stability, the materials were further engineered through TiO₂ nanoparticle modification, enabling the formation of p–n heterojunctions that improve charge separation, stability and light utilization.

The resulting photocatalysts were evaluated for CO₂ conversion into value-added products and water depollution through dye degradation.

Finally, a life cycle perspective was incorporated to assess environmental impacts, sustainability benefits, and the scalability potential of these photocatalytic systems.

Short Bio/CV

I am a third-year PhD student with a background in materials science and chemistry. My research focuses on photocatalysis and materials development, with an emphasis on green and sustainable approaches.

I am part of the NABIOS team, and my PhD project is integrated into DéfiCO₂, a multidisciplinary initiative aimed at developing and evaluating technological solutions for carbon capture and utilization (CCU).

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Contact : deborah.verger@grenoble-inp.fr