To much of our population lack the necessary cleanliness in their drinking water. Researchers created a filter which uses the sun to purify water. It harvests visible lights as opposed to ultraviolet lights which speeds up the process. It kills 99.999% of bacteria, it’s small and only works on water. The device uses the sunlight to make reactions like hydrogen peroxide which kill bacteria, however it may not be able to kill certain microbes/viruses.

Key Takeaways:

• An estimated 663 million people worldwide lack access to safe drinking water, yet finding an efficient way to disinfect the vital liquid has proved difficult.
• Researchers have designed a new device which could allow worldwide access to safe drinking water, using a disinfection device that is powered by the sun, and can rapidly kill bacteria to deliver safe drinking water.
• Researchers developed new materials that can harvest visible light, which represents around 50% of solar energy, and speed up solar water purification.

“An estimated 663 million people worldwide lack access to safe drinking water, yet finding an efficient way to disinfect the vital liquid has proved difficult.”

https://www.dailymail.co.uk/sciencetech/article-3741337/Is-answer-clean-drinking-water-New-filter-rapidly-kill-bacteria-using-light-SUN.html