Improved capture of carbon dioxide and methane via adding micropores within porous boron nitride fibers
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In this paper, a novel type of micropore-rich boron nitride (BN) fibers (m-BNFs) was prepared by adding a surfactant hexamethylenetetramine in the traditional melamine-diborate (M·2B) precursor of conventional porous BN fibers (BNFs). As a result, extra micropore distribution could be introduced within m-BNFs bodies. Due to adding of the micropores, the CO2 capture capacities of the BN fibers were improved to be 2.85 mmol g−1, which were significantly higher than that of original porous BNFs. Also, these m-BNFs would have an enhanced adsorption capacity of methane, the amount of up to 0.71 mmol g−1. At the same time, these new m-BNFs materials showed excellent thermal stability, which would be more valuable for advanced gas adsorption working in a high-temperature environment in the future.
This research was financially supported by National Natural Science Foundation of China (Grant Nos.: 51802073, 51372066 and 51402086).
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