The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Oct. 24, 2023
Filed:
Jul. 28, 2021
Samsung Electronics Co., Ltd., Suwon-si, KR;
Myongji University Industry and Academia Cooperation, Yongin-si, KR;
Sangmin Ji, Yongin-si, KR;
Hyukjae Kwon, Suwon-si, KR;
Minseok Koo, Suwon-si, KR;
Sukeun Kuk, Suwon-si, KR;
Dongsik Yang, Seoul, KR;
Hyun Chul Lee, Ansan-si, KR;
Joeng Gil Seo, Seoul, KR;
Namjun So, Seoul, KR;
SAMSUNG ELECTRONICS CO., LTD., Gyeonggi-Do, KR;
MYONGJI UNIVERSITY INDUSTRY AND ACADEMIA COOPERATION, Gyeonggi-Do, KR;
Abstract
A composite photocatalyst, a photocatalytic filter for air purification, and an air purification device that includes the photocatalytic filter. The composite photocatalyst includes: a first metal oxide particle; and second metal oxide particles arranged on a surface of the first metal oxide particle, wherein specific surface area of the second metal oxide particles is greater than specific surface area of the first metal oxide particle, and bandgap energy of the second metal oxide particles is greater than bandgap energy of the first metal oxide particle. The composite photocatalyst structure may degrade and remove gaseous pollutants under room temperature and atmospheric pressure conditions. The composite photocatalyst may be applied to various indoor and outdoor air purification systems in the form of a photocatalytic filter.