US 12,064,536 B2
Photocatalyst for air purification, and ceramic catalyst filter and air purification device including the same
Minseok Koo, Suwon-si (KR); Hyukjae Kwon, Suwon-si (KR); Hyun Chul Lee, Hwaseong-si (KR); Sukeun Kuk, Suwon-si (KR); Dongsik Yang, Seoul (KR); Sehyeong Oh, Seoul (KR); and Sangmin Ji, Yongin-si (KR)
Assigned to SAMSUNG ELECTRONICS CO., LTD., Gyeonggi-Do (KR)
Filed by Samsung Electronics Co., Ltd., Suwon-si (KR)
Filed on Jul. 19, 2021, as Appl. No. 17/379,871.
Claims priority of application No. 10-2021-0030420 (KR), filed on Mar. 8, 2021.
Prior Publication US 2022/0280677 A1, Sep. 8, 2022
Int. Cl. A61L 9/20 (2006.01); B01D 39/20 (2006.01); B01D 53/86 (2006.01); B01J 35/39 (2024.01); C01G 23/053 (2006.01)
CPC A61L 9/205 (2013.01) [B01D 39/2068 (2013.01); B01D 53/86 (2013.01); B01J 35/39 (2024.01); C01G 23/053 (2013.01); A61L 2209/14 (2013.01); B01D 2201/18 (2013.01); B01D 2255/802 (2013.01); B01D 2258/06 (2013.01); C01P 2004/64 (2013.01)] 20 Claims
OG exemplary drawing
 
1. A photocatalyst for air purification, comprising:
a first metal oxide particle having ultraviolet absorptivity, and fluorine bound to a surface of the first metal oxide particle; and
second metal oxide particles present on the surface of the first metal oxide particle.