Abstract
Control of indoor CO2 concentration to a safe level is important to human health. Metal-organic-framework-based adsorbents show superior adsorption performance at moderate CO2 concentration compared to other solid adsorbents but suffer from low capacities and high regeneration temperature at indoor CO2 concentrations and poor humidity stability. Herein, we report epn-grafted Mg2(dobpdc) (epn = 1-ethylpropane-1,3-diamine) showing a CO2 capacity of 12.2 wt % at an acceptable concentration of 1000 ppm and a practically low desorption temperature of 70 °C, which surpasses the performance of conventional solid adsorbents under the given conditions. After poly(dimethylsiloxane) coating, this material reveals a significant adsorption amount (∼10 wt %) in humid conditions (up to 98% relative humidity) with structural durability.
Original language | English |
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Pages (from-to) | 50534-50540 |
Number of pages | 7 |
Journal | ACS Applied Materials and Interfaces |
Volume | 12 |
Issue number | 45 |
DOIs | |
Publication status | Published - 2020 Nov 11 |
Keywords
- PDMS coating
- amine functionalization
- indoor air capture
- metal-organic framework
- ultra-microproliferation
ASJC Scopus subject areas
- Materials Science(all)