Korea Institute of Science and Technology

Jeong Joo Choo

Dong Young Kim

Seong M Jo

Sung-Yeon Jang

An ultrafine continuous fibrous ceramic filter, which comprises a filtering layer of a fibrous porous body, wherein the fibrous porous body comprises continuous ultrafine fibers of metal oxide which are randomly arranged and layered, and powdery nano-alumina incorporated into the ultrafine fibers or coated thereon, the ultrafine fibers being obtained by electrospinning a spinning solution comprising a metal oxide precursor sol-gel solution, and optionally, a polymer resin, and sintering the electrospun fibers, in which the ultrafine fibers have an average diameter of 10&#x2dc;500 nm, and the fibrous porous body has a pore size of maximum frequency ranging from 0.05 to 2 &#x3bc;m, exhibits high filtration efficiency at a high flow rate, and can be regenerated.

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Seoul, South Korea

Jeong Joo Choo