These surfaces contain tiny particles of titanium dioxide, which become excited when they absorb ultraviolet light with a wavelength of less than 380 nanometres."Self-cleaning bathroom on the way," says the BBC, based on oxidizing ability of said excited nanoparticles, but maybe that's just wishful thinking says Friends of the Earth's Mary Taylor.
"We would have to consider, for example, whether the material could be recycled or disposed of safely, and how much more energy went into production of the raw materials and its manufacture.""Less time cleaning the bathroom is rather appealing," Taylor adds, not wishing to go down in history as a consumate grump.
It's all about doping the cations and anions. In case you're wondering.
Speaking of anions, I'd better get to the grocery store today. Big snow storm coming up tonight. (Well not really big - I'm just saying big so the weather gods don't think I'm clowning around.) Snow and a lack of ultraviolet excitement as well, no doubt.
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