3. Novel Photocatalytic Pervious Composites: Removing Toxins From Water
This project that ranks third on our list of winning science fair projects for high school was aimed at developing a green and sustainable technique for purifying water. The innovative methodology used in this project involves filtration with an enhanced photocatalytic oxidation process. To synthesize novel silver (Ag) doped photocatalytic pervious composites, Deepika Kurup used uniformly graded sand, titanium dioxide, Portland cement, and silver nitrate. Ag-doped photocatalytic pervious composite showed a 98% reduction in bacteria right after filtration. Further exposure of the filtered water to sunlight inside a beaker containing an Ag-doped photocatalytic composite disc showed 100% reduction of bacteria in only 15 minutes. Deepika Kurup was a finalist at Google Science Fair in 2015.
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