Non-carcinogenic carbon sorbents for respiratory protection

Activated carbons impregnated with compounds of chromium, copper and silver (Cr-Cu-Ag) are widely used for removing toxic substances from air, mainly in respiratory protection for industrial and military applications. Toxicological and epidemiological studies have shown chromium (especially hexavale...

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Bibliographic Details
Published in:Journal of hazardous materials 2009-04, Vol.163 (2), p.471-474
Main Authors: Szmigielski, Radoslaw, Zietek, Stefan, Swiatkowski, Andrzej, Palijczuk, Dorota, Kielczewski, Marek
Format: Article
Language:English
Subjects:
Activated carbon
Adsorption
Applied sciences
Carbon - chemistry
Catalysis
Catalytic reactions
Chemical engineering
Chemistry
Copper
Environmental Pollutants - isolation & purification
Exact sciences and technology
Gas phase adsorption
General and physical chemistry
Impregnation
Molybdenum
Pollution
Porosity
Prunus
Reactors
Silver
Sorbents
Theory of reactions, general kinetics. Catalysis. Nomenclature, chemical documentation, computer chemistry
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Summary:Activated carbons impregnated with compounds of chromium, copper and silver (Cr-Cu-Ag) are widely used for removing toxic substances from air, mainly in respiratory protection for industrial and military applications. Toxicological and epidemiological studies have shown chromium (especially hexavalent Cr) to have carcinogenic properties. Hence, research has been launched to develop a new adsorption-catalytic complex without chromium, which is intended to replace the activated carbon-catalyst (Cr-Cu-Ag) system. In this work activated carbon obtained from plum stones as carrier and molybdenum, copper and silver salts as impregnates were studied. The porous structure of the carbon carrier was investigated using low temperature nitrogen adsorption. Cyanogen chloride breakthrough dynamics was analyzed in order to characterize the protection properties. Studies on the substitution of chromium by non-carcinogenic metals will be continued.
ISSN:0304-3894
1873-3336
DOI:10.1016/j.jhazmat.2008.07.029