Studies to develop surfaces for carbon oxide absorption (CO2), are so common as strategy to diminish the atmospheric concentration of this polluctant. Since much time a solution in that way are titanium anodized surfaces (anatase), but the high material costs make it hard to widespread the technology. An innovative solution suggests to use unicellular green algae (Dunaliella parva and Dunaliella tertiolecta), which are organisms able to absorb CO2 and produce oxygen (O2) in the reaction. Studies (greenfuelonline.com) helped to develop phototropic panels (Air-Lift Bioreactor) in which, thanks to an optimized photobioreactor, algae work in acqueous environment and solar light exposition takes to the generation of oxygen, following the process of chlorofillian photosynthesis. Algae used for this kind of experiments show annual efficiency, when they could be recycled as biomass waste to produce biofuels. It’s possible to obtain a virtous cycle in the usage of this natural product, which should find numerous applications, such as: building, roofs, cars covering and surface nanotech treatments.
