Heats of adsorption of gold chloride and cyanide complexes from aqueous solutions on graphitized carbon black and a coconut active carbon

Carbon ◽  
1991 ◽  
Vol 29 (7) ◽  
pp. 821-829 ◽  
Author(s):  
A.J. Groszek ◽  
S. Partyka ◽  
D. Cot
Keyword(s):  
Carbon Black ◽  
Aqueous Solutions ◽  
Active Carbon ◽  
Graphitized Carbon Black ◽  
Gold Chloride ◽  
Heats Of Adsorption ◽  
Graphitized Carbon ◽  
Cyanide Complexes

scholarly journals Adsorption Properties and Structure of Some Active Carbons

1993 ◽  
Vol 10 (1-4) ◽  
pp. 211-220 ◽  
Author(s):  
I.A. Bardina ◽  
E.V. Kalashnikova ◽  
N.V. Kovaleva ◽  
T.A. Rudnitskaya ◽  
N.K. Shonya
Keyword(s):  
Gas Chromatography ◽  
Carbon Black ◽  
Active Carbon ◽  
Graphitized Carbon Black ◽  
Adsorption Properties ◽  
Static Method ◽  
Active Carbons ◽  
Heats Of Adsorption ◽  
Graphitized Carbon ◽  
Low Coverage

Gas chromatography has been used to determine the initial low-coverage heats of adsorption of C2–C6 hydrocarbons and their derivatives on active carbon and graphitized carbon black. The porous structure of the active carbon has been determined from the adsorption isotherms of benzene measured at 25°C by a vacuum static method. The isotherms have been analyzed with the help of the BET and Dubinin–Radushkevich theories.

HEATS OF ADSORPTION OF KRYPTON ON HIGHLY GRAPHITIZED CARBON BLACK

1955 ◽  
Vol 33 (2) ◽  
pp. 305-313 ◽  
Author(s):  
C. H. Amberg ◽  
W. B. Spencer ◽  
R. A. Beebe
Keyword(s):  
Carbon Black ◽  
Graphitized Carbon Black ◽  
Adsorption System ◽  
Heats Of Adsorption ◽  
Graphitized Carbon ◽  
High Degree

Calorimetric heats have been determined at −183 °C. for the adsorption of krypton on a highly graphitized sample of carbon black. This adsorption system is of particular interest because of the extreme step-wise nature of the isotherm. Both the heat-coverage curve and the isotherm appear to be indicative of a high degree of homogeneity of the adsorbing surface.

Selective Sorption of Phenol and Related Compounds from Aqueous Solutions onto Graphitized Carbon Black. Adsorption and Flow Microcalorimetric Studies

Langmuir ◽  
1996 ◽  
Vol 12 (2) ◽  
pp. 423-430 ◽  
Author(s):  
Zoltán Király ◽  
Imre Dékány ◽  
Erwin Klumpp ◽  
Hans Lewandowski ◽  
Hans D. Narres ◽  
...  
Keyword(s):  
Carbon Black ◽  
Aqueous Solutions ◽  
Graphitized Carbon Black ◽  
Selective Sorption ◽  
Graphitized Carbon ◽  
Related Compounds

scholarly journals Adsorption of Sodium Hexadecyl Sulfate and Triton X from Binary Aqueous Solutions at Thermally Graphitized Carbon Black

2020 ◽  
Vol 65 (1) ◽  
pp. 72-79
Author(s):  
Olga Kochkodan ◽  
Victor Maksin ◽  
Tetyana Semenenko
Keyword(s):  
Carbon Black ◽  
Aqueous Solutions ◽  
Nonionic Surfactant ◽  
Adsorption Layer ◽  
Nonionic Surfactants ◽  
Graphitized Carbon Black ◽  
Bulk Solution ◽  
Graphitized Carbon ◽  
Individual Solution ◽  
Triton X

Adsorption of anionic sodium hexadecyl sulfate (SHS) and nonionic Triton X surfactants with different ethoxylation degree: TX-45, TX-100 and TX-300 from their individual and mixed aqueous solutions at the surface of thermally graphitized carbon black (CB) was studied. It was found that at low solution concentrations addition of the nonionic surfactant increases the amount of SHS adsorbed from SHS/Triton X mixtures compared to SHS amount adsorbed from its individual solution. These findings might be explained by decreasing in electrostatic repulsion between SHS ions due to inclusion of the molecules of the nonionic surfactant in the mixed adsorption layer. At higher solution concentrations, adsorption of SHS decrease as a result of displacement of SHS ions from the mixed adsorption layer by Triton X molecules. It was established that the composition of the mixed adsorption layer at CB surface notably differ from the composition of the surfactant mixture in the bulk solution. The mixed adsorption layer is enriched with the molecules of the nonionic surfactants and this conclusion is confirmed by the results of measuring zeta potential of CB particles with the adsorbed surfactants.

Sign in / Sign up

Export Citation Format

Share Document