EFFECTS OF SOLUTION PH ON THE ADSORPTION OF AROMATIC COMPOUNDS FROM AQUEOUS SOLUTIONS BY ACTIVATED CARBON

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NOURI S.; HAGHSERESHT F.; LU M.

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Journal Paper

Paper Information

Journal: AMIRKABIR Year:2002 | Volume:13 | Issue:49 Page(s): 26-35

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Information Journal Paper

Title

EFFECTS OF SOLUTION PH ON THE ADSORPTION OF AROMATIC COMPOUNDS FROM AQUEOUS SOLUTIONS BY ACTIVATED CARBON

Author(s)

NOURI S. | HAGHSERESHT F. | LU M. | Issue Writer Certificate

Keywords

EFFECTS OF PH

POINT OF ZERO CHARGE (PZC)

P-CRESOL

BENZOIC ACID

NITRO BENZEN

ADSORPTION CAPACITY

ACTIVATED CARPACITY

ACTIVTED CARBON (S. E. 1)

FREUNDLICH EQUATION

SPECTROPHOTOMETER

ADSORPTION OF AROMATIC

Abstract

Adsorption of P-CRESOL, BENZOIC ACID and NITRO BENZEN by activated carbon from dilute aqueous solutions was carried out under controlled pH conditions at 310k. In acidic conditions, well below the pKa of all solutes, it was observed that the adsorbate solubility and the electron density of its aromatic ring were the influencing factors on the extent of the adsortion by affecting the extent of London dispersion forces. In higher solution pH conditions, on the other hand, it was found that the electrostatic forces played a significant role on the extent of adsorption. The Effect of ph must be considered from its combined effects on the carbon surface and on the solute molecules. It was found that the uptake of the molecular forms of the aromatic solutes was dependent on the substituents of the aromatic ring. Adsorption of the solutes in higher pH Values was found to be dependent on the concentration of anionic form of the solutes. All isotherms were fitted into Freundlich isotherm Equations.

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APA: Copy

NOURI, S., HAGHSERESHT, F., & LU, M.. (2002). EFFECTS OF SOLUTION PH ON THE ADSORPTION OF AROMATIC COMPOUNDS FROM AQUEOUS SOLUTIONS BY ACTIVATED CARBON. AMIRKABIR, 13(49), 26-35. SID. https://sid.ir/paper/537891/en

Vancouver: Copy

NOURI S., HAGHSERESHT F., LU M.. EFFECTS OF SOLUTION PH ON THE ADSORPTION OF AROMATIC COMPOUNDS FROM AQUEOUS SOLUTIONS BY ACTIVATED CARBON. AMIRKABIR[Internet]. 2002;13(49):26-35. Available from: https://sid.ir/paper/537891/en

IEEE: Copy

S. NOURI, F. HAGHSERESHT, and M. LU, “EFFECTS OF SOLUTION PH ON THE ADSORPTION OF AROMATIC COMPOUNDS FROM AQUEOUS SOLUTIONS BY ACTIVATED CARBON,” AMIRKABIR, vol. 13, no. 49, pp. 26–35, 2002, [Online]. Available: https://sid.ir/paper/537891/en

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