Forum for Science, Industry and Business

Sponsored by:     3M 
Search our Site:

 

Large-scale window material developed for PM2.5 capture and light tuning

18.02.2019

Tuning the light intensity and reducing the concentration of atmospheric particulate matter (PM) in commercial buildings are both crucial to keep indoor people comfortable and healthy.

While, the intelligent smart windows fabricated on the flexible transparent electrodes can change its transmittance in response to electrical or thermal stimulus to tune the light intensity of commercial buildings to maintain thermal comfort. Up to now, it is still a significant challenge to fabricate the large-scale flexible transparent smart window for high-efficiency PM2.5 capture.


Photograph of a large-scale conductive nylon mesh. Inset is photograph of Ag nanowire ink using ethanol as a solvent with a concentration of 3.92 mg mL-1.

Credit: YU Shuhong


A schematic diagram illustrated the PM filtration process.

Credit: YU Shuhong

Recently, a research team led by Prof. YU Shuhong from the University of Science and Technology of China (USTC) develops a simple solution based process to fabricate large-area Ag-nylon flexible transparent windows for high-efficiency PM2.5 capture.

It takes only about 15.03 dollars and 20 minutes to fabricate 7.5 m2 Ag-nylon flexible transparent windows without any modification showing a sheet resistance of as low as 8.87 ? sq-1 and optical transmittance of 86.05%.

The obtained Ag-nylon mesh serves not only to turn the indoor light intensity as thermochromic smart windows after uniformly coated with thermochromic dye but also to purify indoor air as high-efficiency PM2.5 filter.

The time-dependent temperature profiles and uniform heat distribution show that the obtained Ag-nylon electrodes can be used as an ideal intelligent thermochromic smart window with excellent mechanical stability whose performance remains stable even after 10,000 bending cycles of bending test with a minimum bending radius of 2.0 mm and 1,000 cycles of stretching deformation with mechanical strain as high as 10%.

In addition, the Ag-nylon electrodes can be constructed for PM filter showing a removal efficiency of 99.65% and maintaining stable even after 100 cycles of PM filtration and cleaning process.

The success of the present design strategy provides more choices in developing next-generation flexible transparent smart windows and air pollution filters.

Media Contact

Jane FAN Qiong
englishnews@ustc.edu.cn
86-551-636-07280

http://en.ustc.edu.cn 

Jane FAN Qiong | EurekAlert!
Further information:
http://dx.doi.org/10.1016/j.isci.2019.01.014

More articles from Materials Sciences:

nachricht From foam to bone: Plant cellulose can pave the way for healthy bone implants
19.03.2019 | University of British Columbia

nachricht Additive printing processes for flexible touchscreens: increased materials and cost efficiency
19.03.2019 | INM - Leibniz-Institut für Neue Materialien gGmbH

All articles from Materials Sciences >>>

The most recent press releases about innovation >>>

Die letzten 5 Focus-News des innovations-reports im Überblick:

Im Focus: Stellar cartography

The Potsdam Echelle Polarimetric and Spectroscopic Instrument (PEPSI) at the Large Binocular Telescope (LBT) in Arizona released its first image of the surface magnetic field of another star. In a paper in the European journal Astronomy & Astrophysics, the PEPSI team presents a Zeeman- Doppler-Image of the surface of the magnetically active star II Pegasi.

A special technique allows astronomers to resolve the surfaces of faraway stars. Those are otherwise only seen as point sources, even in the largest telescopes...

Im Focus: Heading towards a tsunami of light

Researchers at Chalmers University of Technology and the University of Gothenburg, Sweden, have proposed a way to create a completely new source of radiation. Ultra-intense light pulses consist of the motion of a single wave and can be described as a tsunami of light. The strong wave can be used to study interactions between matter and light in a unique way. Their research is now published in the scientific journal Physical Review Letters.

"This source of radiation lets us look at reality through a new angle - it is like twisting a mirror and discovering something completely different," says...

Im Focus: Revealing the secret of the vacuum for the first time

New research group at the University of Jena combines theory and experiment to demonstrate for the first time certain physical processes in a quantum vacuum

For most people, a vacuum is an empty space. Quantum physics, on the other hand, assumes that even in this lowest-energy state, particles and antiparticles...

Im Focus: Sussex scientists one step closer to a clock that could replace GPS and Galileo

Physicists in the EPic Lab at University of Sussex make crucial development in global race to develop a portable atomic clock

Scientists in the Emergent Photonics Lab (EPic Lab) at the University of Sussex have made a breakthrough to a crucial element of an atomic clock - devices...

Im Focus: Sensing shakes

A new way to sense earthquakes could help improve early warning systems

Every year earthquakes worldwide claim hundreds or even thousands of lives. Forewarning allows people to head for safety and a matter of seconds could spell...

All Focus news of the innovation-report >>>

Anzeige

Anzeige

VideoLinks
Industry & Economy
Event News

International Modelica Conference with 330 visitors from 21 countries at OTH Regensburg

11.03.2019 | Event News

Selection Completed: 580 Young Scientists from 88 Countries at the Lindau Nobel Laureate Meeting

01.03.2019 | Event News

LightMAT 2019 – 3rd International Conference on Light Materials – Science and Technology

28.02.2019 | Event News

 
Latest News

Levitating objects with light

19.03.2019 | Physics and Astronomy

New technique for in-cell distance determination

19.03.2019 | Life Sciences

Stellar cartography

19.03.2019 | Physics and Astronomy

VideoLinks
Science & Research
Overview of more VideoLinks >>>