PHOTOCATALYST FILTER USING METAL OXIDE NANOFIBER, METHOD FOR FABRICATING THE SAME AND AIR CLEANER USING THE SAME

摘要

A photocatalytic filter is provided to manufacture a filter sample simply and inexpensively by using metal oxide nanofibers formed by electrospinning and obtain excellent properties of the filter by increasing reproducibility and surface area of the filter, a method for manufacturing the photocatalytic filter using the metal oxide nanofibers is provided, and an air cleaner using the photocatalytic filter is provided. A method for manufacturing a photocatalytic filter using metal oxide nanofibers comprises the steps of: providing a first substrate(410) in which a plurality of holes(411) are formed; forming metal oxide nanofibers(420) on the first substrate using electrospinning; calcining the metal oxide nanofibers formed on the first substrate; and covering the calcined metal oxide nanofibers with a second substrate(430) in which the plurality of holes(411) are formed. The step of forming metal oxide nanofibers on the first substrate using electrospinning comprises the steps of: electrospinning first metal oxide nanofibers aligned in the lateral or longitudinal direction on the first substrate; and electrospinning second metal oxide nanofibers on the first metal oxide nanofibers such that the second metal oxide nanofibers are aligned in the direction perpendicular to the alignment direction of the first metal oxide nanofibers. Further, the metal oxide nanofibers are ZnO nanofibers or TiO2 nanofibers.