High Water Adsorption MOFs with Optimized Pore-Nanospaces for Autonomous Indoor Humidity Control and Pollutants Removal.
Neng-Xiu ZhuZhang-Wen WeiCheng-Xia ChenXiao-Hong XiongYang-Yang XiongZheng ZengWei WangJi-Jun JiangYa-Nan FanCheng-Yong SuPublished in: Angewandte Chemie (International ed. in English) (2021)
The indoor air quality is of prime importance for human daily life and health, for which the adsorbents like zeolites and silica-gels are widely used for air dehumidification and harmful gases capture. Herein, we develop a pore-nanospace post-engineering strategy to optimize the hydrophilicity, water-uptake capacity and air-purifying ability of metal-organic frameworks (MOFs) with long-term stability, offering an ideal candidate with autonomous multi-functionality of moisture control and pollutants sequestration. Through variant tuning of organic-linkers carrying hydrophobic and hydrophilic groups in the pore-nanospaces of prototypical UiO-67, a moderately hydrophilic MOF (UiO-67-4Me-NH2 -38 %) with high thermal, hydrolytic and acid-base stability is screened out, featuring S-shaped water sorption isotherms exactly located in the recommended comfortable and healthy ranges of relative humidity for indoor ventilation (45 %-65 % RH) and adverse health effects minimization (40-60 % RH). Its exceptional attributes of water-uptake working capacity/efficiency, contaminants removal, recyclability and regeneration promise a great potential in confined indoor environment application.
Keyphrases
- metal organic framework
- air pollution
- particulate matter
- health risk
- public health
- healthcare
- stem cells
- endothelial cells
- heavy metals
- liquid chromatography
- mental health
- emergency department
- drinking water
- physical activity
- ionic liquid
- social media
- intensive care unit
- health information
- deep learning
- mass spectrometry
- room temperature
- climate change
- mechanical ventilation
- artificial intelligence
- solid phase extraction
- adverse drug