Wouldn’t it be nice if clothes can be simply washed by simply hanging them in sun?
Mingce Long and Deyong Wu of Shinghai Jiao Tong University in China discovered that if clothes are treated with titanium dioxide and nitrogen compound they can be simply cleaned by just hanging in sunlight.
Dirt breaks down quickly and germs are killed .
The ability to clean stains by sunlight improved further if silver and iodine nanoparticles were added.