AI Article Synopsis
- * The modified polymer demonstrates an impressive 40-fold increase in NH adsorption capacity compared to the original, and it efficiently separates NH from water vapor due to its hydrophobic nature.
- * This new material is also characterized by fast adsorption rates and can be recycled at low temperatures, making it a low-cost and scalable option for mass production.
Article Abstract
A hypercrosslinked porous organic polymer was modified by post-oxidation and post-sulfonation to obtain a porous platform with a high density of acidic groups. Such an acidified material exhibits record high NH adsorption capacity per surface area, fast adsorption rate, and recyclability at low desorption temperature. Noticeably, the coating of the polymer with PDMS represents a facile and efficient route to enable both a significant improvement of low-pressure NH adsorption capacity (∼40-fold enhancement; from 0.04 to 1.41 mmol g) with respect to the non-modified polymer at 500 ppm and hydrophobicity associated with the selective sorption of NH over water vapor (hydrophilic for the non-coated material). This material is easy to prepare, cost-effective, and scalable to mass production.
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|---|---|
| http://www.ncbi.nlm.nih.gov/pmc/articles/PMC6114995 | PMC |
| http://dx.doi.org/10.1039/c8sc02640h | DOI Listing |
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