Results from a first autonomous optically adapted photocatalytic–photovoltaic module for water purification

First results from a first autonomous optically adapted photocatalytic–photovoltaic system for water purification demonstrate the feasibility of the concept. Complete photodegradation of an organic dye (Methylene Blue) has been achieved when using the system autonomously. For an initial concentration of 0.01 g/L of MB dye and an average UV of 4.6 W/m2, the total photodecolourisation of the dye after 80 min was 95.1% and the increase in the total photovoltaic output power was of 19%. 5 L of polluted water was purified.