Comparative study on removal efficiency of impregnated carbons for hydrogen cyanide vapors in air depending on their phase composition and porous textures

Removal of Hydrogen Sulfide and Sulfur Dioxide by Carbons Impregnated with Triethylenediamine

“…However, in contrast to the situation with TEDA-impregnated AC, the concentration of TEDA impregnated into ASC-carbon had very little effect on the specific surface area of the ASCcarbon. This finding, which is similar to those reported earlier, 21,22 indicates that the adsorption capability of the carbons is not necessarily related with the BET surface area of the adsorbents. Figure 4 is a SEM image of AC (A-C) and ASC-carbon (D-F) impregnated with different concentrations of TEDA.…”

Cyanide oxidation by singlet oxygen generated via reaction between H 2 O 2 from cathodic reduction and OCl − from anodic oxidation

“…These streams are highly toxic and must be treated before being discharged into the environment [2]. Many strategies have been developed to remove cyanides from wastewater including adsorption [3], coagulation [4] and ion-exchange [5].…”

Ammonia, cyclohexane, nitrogen and water adsorption capacities of an activated carbon impregnated with increasing amounts of ZnCl2, and designed to chemisorb gaseous NH3 from an air stream

“…A considerable amount of research has been performed on the adsorption of gases on unimpregnated activated carbon [11][12][13][14] and on impregnated activated carbons designed to remove chemical warfare agents [15][16][17][18][19][20][21][22][23]. Reach focusing on the adsorption of toxic gases (or liquids with relatively high vapor pressure) used in industry, such as ammonia, sulfur dioxide and organic solvents, by impregnated activated carbons is not as widely available in the scientific literature.…”