【石墨烯薄片让污水瞬间变成可饮用水】

【石墨烯薄片让污水瞬间变成可饮用水】来自澳大利亚的研究组织 CSIRO发明了通过使用石墨烯薄片特性的简易污水过滤方式,利用微观纳米通道能让水通过,但能阻隔污染物的特性净化污水。目前科学家通过全新设计的石墨烯材料已经把悉尼港的污水净化成可安全饮用的水,而且这种滤水方式相对传统方式要便宜、快速和环保。http://www.looooker.com/?p=53289

Graphene film makes dirty water drinkable in a single step

The process even made water from Sydney Harbor safe to drink.
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Every year, millions of people around the world die from drinking unclean water. Now, researchers have developed a process that can purify water, no matter how dirty it is, in a single step. Scientists from Australian research organization CSIRO have created a filtration technique using a graphene film with microscopic nano-channels that lets water pass through, but stops pollutants. The process, called "Graphair", is so effective that water samples from Sydney Harbor were safe to drink after being treated.

And while the film hails from graphene, Graphair is comparatively cheaper, faster and more environmentally-friendly to make, as its primary component is renewable soybean oil, which also helps maximise the efficiency of the purifying technique's filter counterpart. Over time, oil-based pollutants can impede water filters, so contaminants have to be removed before filtering can even begin, but using Graphair removes these pollutants faster than any other method.

Water purification usually involves a complex process of several steps, so this breakthrough could have a significant impact on the some 2.1 billion people who don't have clean, safe drinking water. "All that's needed is heat, our graphene, a membrane filter and a small water pump. We're hoping to commence field trials in a developing world community next year," said lead author Dr Dong Han Seo, who added that the team is looking for industry partners to help scale up the technology, and is also working on other applications for Graphair, such as seawater and industrial effluents.

原文链接:

https://www.engadget.com/2018/02/15/graphene-film-makes-dirty-water-drinkable-in-a-single-step/


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