Nest-like multilevel structured graphene oxide-on-polyacrylonitrile membranes for highly efficient filtration of ultrafine particles
Source abstract
Abstract
Developing filtration media for particulate matter (PM) removal has been proven to be extremely challenging. Here, we report a facile and scalable strategy to fabricate a multi-level structured polyacrylonitrile/graphene oxide (PAN/GO) air filtration membrane to remove ultrafine particles in air by combining multi-jet electrospinning and physical bonding. Our approach allows the thin PAN nanofibers and two-dimensional GO nanosheets to form interpenetrating bonding structures on non-woven fabric and to assemble into stable filtration media. The resultant composite membranes can filtrate 300 nm particles with a high removal efficiency of 98.8%, a low pressure drop of 55 Pa, and a desirable quality factor of 0.34 Pa -1 . This multi-level PAN/GO filter is expected to have wider applications not only for the ultrafine particle filtration and separation but also for the design of three-dimensional functional structures in the future.
Source: openalex_inverted_index · Quality: baseline
Research context
OpenAlex topics: Advanced Sensor and Energy Harvesting Materials · Electrospun Nanofibers in Biomedical Applications · Aerosol Filtration and Electrostatic Precipitation
SciVX discovery tags are terminology-based. OpenAlex topics are source-provided classifications.
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