Pollution by volatile organic compounds (VOCs) is one of the most important factors of morbidity (6 to 7 million deaths per year according to the UN). There are multiple sources of VOCs (exhaust gas, evaporation of solvents, degassing of plastics, fire smoke, etc.) and, since they cannot be eradicated, there is an urgent need to design efficient and controlled air purification systems, especially in indoor living spaces (schools, workshops, vehicle interiors, etc.).
Current air treatment processes use carbon adsorbents, which have drawbacks (flammability, irreversible adsorption-desorption, incomplete regeneration, irregular pore geometry, etc.). In addition, the absence of sensors makes it impossible to monitor the effectiveness of the treatment or to know when the adsorbent must be renewed.
The objective of this project is to develop various materials which are capable of trapping by adsorption the VOCs present in the air (content <1 ppm), of eliminating them by catalytic oxidation and which can be used in the design of sensors of Selective VOCs, with a view to designing a controlled air treatment unit.
This project is held together by ICB (JP Bellat, J Rossignol) and FEMTO-ST (JB Sanchez, V. Blondeau-Patissier).