콘텐츠 본문
논문 해외 국제전문학술지(SCI급) A novel approach to designing air filters: Ubiquitous material-based Janus air filter modules with hydrophilic and hydrophobic parts
- 학술지 구분 국제전문학술지(SCI급)
- 게재년월 2020-12
- 저자명 Sol Park, Hye Young Koo, Chengzhong Yu, and Won San Choi*
- 학술지명 Chem. Eng. J.
- 발행처명 ELSEVIER
- 발행국가 해외
- 논문언어 외국어
- 전체저자수 4
- 논문 다운로드 링크(외부) https://doi.org/10.1016/j.cej.2020.128302
- 연구분야 공학 > 화학공학
논문 초록 (Abstract)
A ubiquitous material (sponge or cotton fabric)-based Janus air filter (JAF) with an optimized ratio of hydrophilic (75%) and hydrophobic (25%) parts was prepared using a simple and economical process that did not require specialized equipment or multiple steps. As a result of the hydrophobic part of the JAF, the adsorption of particulate matter (PM) was higher at the rear than at the front of the hydrophilic part of the JAF. The amount of PM adsorbed was further increased in the hydrophilic part of the JAF when the degree of hydrophobicity was increased in the hydrophobic part. The sponge/cotton JAFs exhibited excellent recyclability of up to 30 cycles with consistent long-term performance (RE: 99.99% and △P: 61 Pa) at extremely high PM2.5 concentrations (over 624,230 μg/m3) and air velocities (1.05 m/s). A modular JAF could achieve the performance of 99.89% at a PM0.3 concentration of 999 μg/m3 and air velocity of 1.05 m/s with a low pressure drop of 152 Pa.
