Ohio State University researchers have developed a way to supercharge titanium oxide nanoparticles, creating a light-absorbing blanket that can clean water and generate power.
The process starts with electrospinning — a method of applying electrical force to create small fibers — in order to develop fiber-like strips of titanium dioxide (TiO2). This material is often used in solar cells, gas sensors, and various self-cleaning technologies, as the school reported.
The power generation abilities of TiO2 have previously been limited since the necessary chemical reactions only occur through the use of non-visible UV light.
Following the addition of copper, however, these new nanomat structures are able to absorb enough light energy to break down pollutants in air and water, according to Professor Pelagia-Iren Gouma, the lead author of this study.
“There hasn’t been an easy way to create something like a blanket that you can lay on water and start creating energy,” she said. “But we are the only ones who have made these structures and the only ones to demonstrate that they actually work.”
When it absorbs light, the report explained, TiO2 forms electrons that oxidize water and break down pollutants until they’re benign. The addition of copper was able to supercharge the process and optimize the material’s effectiveness.
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