Successfully developed air filter from nanofibers, effectively doubling ordinary filters

Application of nanofiltration air filters to protect human health and maintain a clean air source is the expected achievement of researchers from the University. Singapore country recently.

Air quality in some countries is now declining rapidly due to air pollution. Decline in air quality also has a serious impact on human health. Because of that, the demand for air filters is constantly increasing. The current air filters do not fully meet the needs and ability to clean up PM 2.5 dust, one of the most dangerous dust particles for human lungs.

This air filter is quite thin, using a nanofiber solution, capable of removing up to 90% of PM 2.5 dust particles.

To find an air filter with more optimal production, the research team came from DHU. Singapore National (NUS) has successfully built a new air filter solution. This air filter is quite thin, using a nanofiber solution, capable of removing up to 90% of PM 2.5 dust particles and can reach 2.5 times the air flow of air compared to conventional filters. .

In addition, the new air filter is also capable of improving natural light, avoiding the harmful effects of ultraviolet rays.

According to the researchers, the new air filter brings about twice the quality of dust and ultraviolet resistance than current commercial air filtration products. These filters are also suitable for placement in windows and doors to enhance indoor air quality.

Air flow through the nanofiltration is 2.5 times more effective than conventional filters.

Air filters are often evaluated through two quality parameters, namely particle filtration efficiency and air permeability. While commercial air filters have very high filtration efficiency, the air permeability is still quite low, resulting in low overall air filtration efficiency.

More notably, the NUS researchers' air filters are environmentally friendly and easy to produce. The group produces filters by treating the active substances on the surface of the non-woven mesh, then letting them dry naturally.

By using phthalocyanine , a chemical compound commonly used in dyeing, the team made organic molecules that can self-organize, superimposed on structural blocks to make nanoparticles and then nanofibers. These nanofibers exist in the form of an organic solution, easily adhering to non-woven mesh and evenly dispersed on the material layer.

Structure of the filter.

In the future, new air filters are expected to be used in the manufacture of gas masks. In addition, the group is continuing to work on adding some new features to the filter such as antimicrobial ability, while planning to commercialize in the near future.

Research by Singapore scientists has recently been published in the scientific journal Small.

Video introduces the above research by Singapore scientists.