Filtration of chlorine and hydrogen chloride gas by engineered UiO-66-NH2 metal-organic framework. 2017

Matthew A Browe, and Amedeo Napolitano, and Jared B DeCoste, and Gregory W Peterson
Edgewood Chemical and Biological Center, 5183 Blackhawk Road, Aberdeen Proving Ground, 21010 Aberdeen, MD, USA.

Chlorine (Cl2) and hydrogen chloride (HCl) are heavily utilized industrial chemicals that present significant respiratory health risks. The metal-organic framework UiO-66-NH2 has shown an unprecedented ability in powder form to remove chlorine gas. Here, we engineered UiO-66-NH2 into 20×40 mesh granules and evaluated their ability to remove chlorine and hydrogen chloride gas challenges. The exposed materials were characterized with nitrogen isotherms, powder X-ray diffraction, and attenuated total reflectance - Fourier transform infrared spectroscopy. Breakthrough results revealed that UiO-66-NH2 sorption of chlorine and hydrogen chloride met or exceeded sorption of state-of-the-art metal-impregnated activated carbon materials on a mass and volume basis in engineered form.

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