Metal air filter
AssigneeKorea Advanced Institute of Science and Technology
InventorsSan Ha Kim, SeungHun Yoo, Inyeong Yang
Life of this patent
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Abstract
The present disclosure relates to a metal air filter including: a filter which is formed of a metallic material by electrodeposition and has a nano branch structure; an ionizer which conducts particles to be captured by the filter with negative charges; and a power supply which supplies a positive voltage for conducting the filter with positive charges and a negative voltage for the ionizer. The filter can be more simply manufactured at a lower cost than a conventional process.
Claims21
A metal air filter comprising:
- a filter which is formed of a metallic material by electrodeposition and has a nano branch structure;
- an ionizer which conducts particles to be captured by the filter with negative charges;
- and
- a power supply which supplies a positive voltage for conducting the filter with positive charges and a negative voltage for the ionizer,
- wherein the nano branch structure of the filter is formed by induction of bromide ions comprised in an aqueous solution, wherein the bromide ions are included in the aqueous solution by dissolving copper bromide (CuBr2) in a sulfuric acid (H2SO4) aqueous solution.
A manufacturing method of a metal filter, the manufacturing method comprising:
- connecting a metal mesh in which metal wires are intertwined to a cathode electrode of an electrolytic tank;
- connecting a metal plate to an anode electrode of the electrolytic tank;
- adding an aqueous solution such that the metal mesh and the metal plate of the electrolytic tank are submerged, wherein the aqueous solution comprises bromide ions by dissolving copper bromide (CuBr2) in a sulfuric acid (H2SO4) aqueous solution;
- and
- forming the metal filter having a nano branch structure induced by the bromide ions by performing electrolysis by applying a voltage between the cathode electrode and the anode electrode of the electrolytic tank.
A filter which is used to filter particles comprised in the air, the filter is formed of a metallic material by electrodeposition and has a nano branch structure formed by induction of bromide ions comprised in an aqueous solution provided by an electrolytic tank for the electrodeposition, wherein bromide ions are included in the aqueous solution by dissolving copper bromide (CuBr2) in a sulfuric acid (H2SO4) aqueous solution.
Dependencies are inferred from the claim text.