Control of indoor CO concentration to a safe level is important to human health. Metal-organic-framework-based adsorbents show superior adsorption performance at moderate CO concentration compared to other solid adsorbents but suffer from low capacities and high regeneration temperature at indoor CO concentrations and poor humidity stability. Herein, we report epn-grafted Mg(dobpdc) (epn = 1-ethylpropane-1,3-diamine) showing a CO 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.
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