Paper laboratory-produced from sepiolite, Goles-Serbia was studied to
determine its sorption characteristics for nitric oxides, water vapor, and
ammonia. The paper adsorbed high percentages of nitric oxides and ammonia
was stoichiometrically chemisorbed on paper saturated with NO2 and H2O.
Infrared spectroscopy showed that the sorption of nitric oxides and ammonia
does not destroy the crystal lattice of sepiolite, which was confirmed by
XRD-analysis. Sorption of both nitric oxides and ammonia occurred by
zeolitic water inside the structural channels of sepiolite. Pressure swing
adsorption (PSA) or temperature swing adsorption (TSA) cycles can be
repeated many times, in the case of NOx and NH3.
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