| Title: | The effects of aging on the dynamic adsorption of hazardous organic vapors on impregnated activated carbon |
| Author(s): | Amitay-Rosen T; Leibman A; Nir I; Zaltsman A; Kaplan D; |
| Address: | "a Department of Physical Chemistry , Israel Institute for Biological Research , Ness-Ziona , Israel" |
| DOI: | 10.1080/15459624.2014.955180 |
| ISSN/ISBN: | 1545-9632 (Electronic) 1545-9624 (Linking) |
| Abstract: | "The effects of an eight-year natural aging of ASC impregnated activated carbon on the adsorption capacity and breakthrough times of model organic vapors and of the nerve agent sarin were investigated. Aging delayed methanol breakthrough from dry air on pre-dried carbon, but shortened the breakthrough time of both methanol and hexane under relative humidity (RH) of 30-85% on pre-humidified carbon. Aging also shortened the breakthrough time of the less volatile model compound 2-methoxyethanol, especially under RH of 60-85%. Aging significantly reduced the protection capacity against sarin at RH of 85%. The effects of aging on physisorption are attributed to enhanced hydrogen-bonding capability and strength of the interaction between water and adsorption sites on the carbon surface" |
| Keywords: | "Adsorption Air Pollutants/*chemistry Air Pollutants, Occupational/chemistry Carbon/*chemistry Chemical Warfare Agents/chemistry Hazardous Substances/*chemistry Humidity *Models, Chemical Organic Chemicals/*chemistry Respiratory Protective Devices Sarin/ch;" |
| Notes: | "MedlineAmitay-Rosen, Tal Leibman, Amir Nir, Ido Zaltsman, Amalia Kaplan, Doron eng England 2014/09/06 J Occup Environ Hyg. 2015; 12(2):130-7. doi: 10.1080/15459624.2014.955180" |
