The Pujiang Innovation Forum comes up with a "Water Magic Master", which can control evaporation and take water from the air

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Water is the liquid that we are most familiar with and is also extremely precious. According to the World Bank report, about 2.8 billion people around the world are short of water. In the past, the solution was to establish a reservoir and water treatment plant. However, the lack of water and infrastructure often needed a lot of manpower.

In the movie "Future Water World", the protagonist was trapped at the sea, and there was no way to drink in the surroundings.

At the Science and Technology Innovation Youth Summit at the 2022 Pujiang Innovation Forum today, Zhu Jia, a professor at Nanjing University and the winner of the "Scientific Exploration Award" in 2020, brought several methods like a magician, making people sigh the power of technology.

The first method is the same as the protagonist of "Future Water World". The evaporation efficiency of nature is less than 20%. The heroine of the film often needs to be exposed to the bottom of the bottom of a mineral water bottle. The Zhujia team designed the world's first solar interface light steam conversion device based on the splash effect. Solar energy is completely used to evaporate. Therefore, the "water vapor" emerging from it is cold because there is no energy participation in heating.

In actual work, this tightly arranged metal nanoparticles floats on the surface of the seawater. The enhancement effect of nanoparticles' local separation enhancement effect makes the surface seawater at the surface of the membrane fluid rising rapidly, generating fresh water steam, and porous porous on the membrane, and the porous on the membrane's polyiticals on the membrane The structure provides an effective channel for steam escape. After measurement, the quality of the seawater after the use of this material is better than the standard for drinking water for the World Health Organization.

What if you don't have water around you at all? Take water to the air. The solar energy -driven -driven atmospheric water (AWH) developed by Zhu Jia's team provides an economic efficient solution for the shortwater shortage of the drought area.

The core of this study is how to achieve rapid adsorption and fast adsorption at the same time. Generally speaking, the two can only take one. They use a new material "nano -carbon", a adsorption agent with fast adsorption dynamics and excellent optical and thermal properties. When the team conducted experiments in Nanjing, in each catcher cycle, it applied for 30 minutes for adsorption and 15 minutes for rescue. They collected 1.365 kg carbon-1 water in 7 hours, which is one of the highest water productivity.

With these achievements, Zhu Jia believes that the most worthy experience is learning from nature. For example, evaporation is originally a way to provide clean water to the world. In addition, in terms of improving evaporation efficiency materials, they found that umbrella caps and mushrooms rich in water pipes are natural "new materials". "Mushroom grows in darkness, and it turns out that it still has a strong talent evaporation." Zhu Jia said.

"Dad, if you can control the evaporation, can you make me a cloud." This is Zhu Jia's daughter's wish for him. He believes that the basic research on water is very worthy of deepening. This is a potential research field.

Author: Shen Yisha

Editor in charge: Ren Quan

*Wenhui exclusive manuscript, please indicate the source for reprinting.

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