INFLUENCE OF pH AND ADSORBATE STRUCTURE ON ADSORPTION OF BENZENE DERIVATIVES ON ACTIVATED CARBON

Deryło–Marczewska, Anna; Marczewski, Adam W.

doi:10.1142/9789812793331_0035

Cited by 4 publications

(6 citation statements)

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“…The LF parameters are presented in Table 2. Additionally, the parameters characterizing adsorption of 2-, 3-and 4-nitrotoluene, 4-nitroaniline [23] and benzoic acid [22] are given in Table 2. All adsorption systems show rather strong non-homogeneity effects; the heterogeneity parameter m is higher than 0.5 only in the case of one system.…”

Section: Resultsmentioning

confidence: 99%

“…In fact, physicochemical tables [23] give often contradictory values of solubility measured at ''natural pH'', i.e. pH $5-8 (even, e.g.…”

Section: Resultsmentioning

confidence: 99%

“…The adsorption data of benzoic acid (on carbons RIAA, RIB and RIC), as well as 4-nitroaniline and 2-, 3-and 4-nitrotoluene (on carbon RIC) were published earlier [22,23]. The adsorbate properties are summarized in Table 1 [24].…”

Section: Experimental and Calculation Proceduresmentioning

confidence: 99%

See 2 more Smart Citations

Effect of adsorbate structure on adsorption from solutions

Deryło–Marczewska

Marczewski

2002

Applied Surface Science

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Adsorption of benzene derivatives of various chemical properties from dilute aqueous solutions on the Norit activated carbons is investigated. The experimental systems are analyzed in terms of adsorption theory on energetically heterogeneous solids. The relations between the optimization isotherm parameters, i.e. equilibrium constants and heterogeneity parameters, and the solute properties, e.g. number, character and position of functional groups are discussed. #

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Section: Resultsmentioning

confidence: 99%

“…In fact, physicochemical tables [23] give often contradictory values of solubility measured at ''natural pH'', i.e. pH $5-8 (even, e.g.…”

Section: Resultsmentioning

confidence: 99%

See 1 more Smart Citation

Effect of adsorbate structure on adsorption from solutions

Deryło–Marczewska

Marczewski

2002

Applied Surface Science

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“…In this paper, the interaction of activated carbon with weak aromatic acids is addressed, since the question of heterogeneity in the adsorption of aromatic compounds from water has until now attracted little general attention. − Weak aromatic acids such as phenolic compounds are, however, widespread in many industrial effluents. Besides being carcinogenic, they cause an unpleasant taste and odor, even at low concentrations, in drinking water/water supplies.…”

Section: Introductionmentioning

confidence: 99%

“…A model based on the Langmuir−Freundlich (LF) adsorption-isotherm equation was therefore chosen. The LF equation has been used successfully for single (or multi) solute adsorption from dilute solutions on heterogeneous surfaces. ,− , …”

Section: Introductionmentioning

confidence: 99%

Heterogeneity of Polymer-Based Active Carbons in Adsorption of Aqueous Solutions of Phenol and 2,3,4-Trichlorophenol

2003

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Heterogeneity effects that accompany adsorption of phenolic compounds from water by polymer-based activated carbons are investigated at different values of solution pH. Activated carbons prepared from poly(ethylene terephthalate) and polyacrylonitrile (APET and APAN, respectively) were used to adsorb phenol and 2,3,4-trichlorophenol in acidic (pH = 3), unbuffered, and basic (pH = 11) aqueous solutions. A Langmuir−Freundlich adsorption-isotherm equation was used to estimate the parameters that characterize adsorption of phenols from dilute solutions on heterogeneous surfaces. Adsorption energy distribution functions were calculated by a regularization method. Analysis of these functions for the APET and APAN carbons provides comparative information about their heterogeneity.

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Studies of adsorption equilibria and kinetics of o-, m-, p-nitro- and chlorophenols on microporous carbons from aqueous solutions

et al. 2010

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The studies of adsorption of o-, m-, and pnitrophenols and chlorophenols from aqueous solutions on microporous activated carbon are presented. The adsorption isotherms were measured at different temperatures: 288, 298, 308 and 318 K. The thermal analysis was applied in order to find the differences in solute interactions with adsorbent surface. The kinetic dependences were measured and the relations between position of adsorbate functional groups and adsorption rate were discussed. The adsorption data are analyzed in terms of the theory of physical adsorption on energetically non-homogeneous solids. The relations between the adsorbate structure and adsorption effectiveness, and the influence of temperature are discussed.

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INFLUENCE OF pH AND ADSORBATE STRUCTURE ON ADSORPTION OF BENZENE DERIVATIVES ON ACTIVATED CARBON

Cited by 4 publications

References 0 publications

Effect of adsorbate structure on adsorption from solutions

Effect of adsorbate structure on adsorption from solutions

Heterogeneity of Polymer-Based Active Carbons in Adsorption of Aqueous Solutions of Phenol and 2,3,4-Trichlorophenol

Studies of adsorption equilibria and kinetics of o-, m-, p-nitro- and chlorophenols on microporous carbons from aqueous solutions

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