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Nat Commun

Title:		Long-lifetime water-washable ceramic catalyst filter for air purification
Author(s):		Kwon HJ; Yang DS; Koo MS; Ji SM; Jeong J; Oh S; Kuk SK; Heo HS; Ham DJ; Kim M; Choi H; Lee JM; Shur JW; Lee WJ; Bin CO; Timofeev N; Wu H; Wang L; Lee T; Jacob DJ; Lee HC;
Address:		"Air Science Research Center (ASRC), Samsung Advanced Institute of Technology (SAIT), Samsung Electronics Co., Ltd., 130 Samsung-ro, Yeongtong-gu, Suwon-si, Gyeonggi-do, 16678, Republic of Korea. hj13.kwon@samsung.com. Air Science Research Center (ASRC), Samsung Advanced Institute of Technology (SAIT), Samsung Electronics Co., Ltd., 130 Samsung-ro, Yeongtong-gu, Suwon-si, Gyeonggi-do, 16678, Republic of Korea. Corning Technology Center Korea, Corning Precision Material Co., Ltd., 212 Tangjeong-ro, Tangjeong-myeun, Asan-si, Chungcheongnam-do, 31454, Republic of Korea. Corning Scientific Center; 26, lit.A, Shatelena St., St. Petersburg, 194021, Russia. Corning Research Center China; Block H, 200 Jinsu Road, Shanghai, 201206, China. Heesung Catalysts Co.; #507-1Da, 91, Somanggongwon-ro, Siheung-si, Gyeonggi-do, 15088, Republic of Korea. John A. Paulson School of Engineering and Applied Sciences, Harvard University, Cambridge, MA, 02138, USA. Air Science Research Center (ASRC), Samsung Advanced Institute of Technology (SAIT), Samsung Electronics Co., Ltd., 130 Samsung-ro, Yeongtong-gu, Suwon-si, Gyeonggi-do, 16678, Republic of Korea. hc001.lee@samsung.com"
Journal Title:		Nat Commun
Year:		2023
Volume:		20230215
Issue:		1
Page Number:		520 -
DOI:		10.1038/s41467-023-36050-w
ISSN/ISBN:		2041-1723 (Electronic) 2041-1723 (Linking)
Abstract:		"Particulate matter (PM) and volatile organic compounds (VOCs) are recognised as hazardous air pollutants threatening human health. Disposable filters are generally used for air purification despite frequent replacement and waste generation problems. However, the development of a novel regenerable and robust filter for long-term use is a huge challenge. Here, we report on a new class of facile water-washing regenerable ceramic catalyst filters (CCFs), developed to simultaneously remove PM (>95%) and VOCs (>82%) in single-pass and maximized space efficiency by coating the inner and outer filter channels with an inorganic membrane and a Cu(2)O/TiO(2) photocatalyst, respectively. The CCFs reveal four-fold increase in the maximum dust loading capacity (approximately 20 g/L) in relation to conventional filters (5 g/L), and can be reused after ten regeneration capability with simple water washing retaining initial PM and VOC removal performances. Thus, the CCFs can be well-suited for indoor and outdoor air purification for 20 years, which shows a huge increase in lifetime compared to the 6-month lifespan of conventional filters. Finally, we believe that the development and implementation of CCFs for air purification can open new avenues for sustainable technology through renewability and zero-waste generation"
Keywords:
Notes:		"PubMed-not-MEDLINEKwon, Hyuk Jae Yang, Dong Sik Koo, Min Seok Ji, Sang Min Jeong, Joonseon Oh, Sehyeong Kuk, Su Keun Heo, Hyeon-Su Ham, Dong Jin Kim, Mijong Choi, Hyoungwoo Lee, Jong-Min Shur, Joong-Won Lee, Woo-Jin Bin, Chang-Ook Timofeev, Nikolay Wu, Huiqing Wang, Liming Lee, Taewoo Jacob, Daniel J Lee, Hyun Chul eng England 2023/02/16 Nat Commun. 2023 Feb 15; 14(1):520. doi: 10.1038/s41467-023-36050-w"