Graphene Aerogel-Enhanced DBD Reactor with Thermoelectric Energy Recovery for Superior Plasma Activated Water Production

Abstract This study investigates plasma-activated water (PAW) production enhancement using a Dielectric Barrier Discharge (DBD) reactor integrated with graphene aerogel inserts. It explores the potential for thermoelectric energy recovery. The research focuses on optimizing PAW generation by leveraging graphene aerogel’s high surface area and porosity to improve plasma-water interaction and increase the dissolution of reactive oxygen and nitrogen species (RONS). Additionally, the study examines the integration of thermoelectric materials within the reactor system to recover and utilize the thermal energy generated during plasma activation. A rotating DBD reactor design facilitates dynamic mixing and enhances contact between plasma and water. Key parameters are systematically evaluated, including rotation speed, aerogel characteristics, discharge conditions, and thermoelectric material performance. Results indicate that graphene aerogel significantly boosts PAW production efficiency while including thermoelectric materials, contributing to energy recovery and making the process more sustainable. This dual advancement in PAW technology offers potential applications in biomedical treatments, environmental remediation, and energy-efficient industrial processes.