Multifunctional Filters for Protecting Public Health
Principal Investigator: Professor Chuyang TANG (Department of Civil Engineering)
This project is showcased in the inaugural exhibition – Engineering for Better Living in Innovation Wing Two
Clean water and clean air are vital for public health. This project focuses on developing high-efficiency and environmentally sustainable filters for removing harmful air/water pollutants. The team has developed novel architectures and functionalities for the filters to achieve high permeance, high removal efficiency, and excellent reusability.
The developed highly porous, multifunctional, and nanostructured filters consist of numerous functional nanofibers fabricated by electrospinning for high-efficiency water and air purification. The major innovation features of the filter include: 1) nanostructured multifunctional porous filters for effective air filtration (e.g., >99% removal of 0.3 pm particles, indicating excellent efficiency for eliminating nano-sized air pollutants including bioaerosols and viruses); 2) rapid water filters that are electricity-free, chemical-free, compact, and with high removal efficiency (e.g., >99.9% for heavy metals and >99.9999% for bacteria); 3) reusable filter designs for improved sustainability.
The project will create great benefits to the communities which include:
Professor Tang is a Professor of Water and Enivronmental Engineering at HKU. His research focuses on memebrane and filter technology for water-energy nexus. He is a recipent of the inaugural RGC Senior Research Fellowship, the inaugural HKU Innovator Award, and many other prestigious awards.