Published 1993 | Version v1
Miscellaneous Metadata-only

Adsorption studies of dyes on alumina and silica gels

Creators

Description

Adsorption of dyes (Rhodamine B, Acid Red 4, Niel blue Sulphate) on alumina and silica gels was studied as a function of temperature. Spectrophotometry was used as the technique to measure the extent of adsorption. Freundlich and Langmuir adsorption equation were applied from which thermodynamic parameters such as enthalpy, free energy and entropy of adsorption were calculated. Classius-claperyron equation was applied to calculate the iso steric heat of adsorption (q),and interpreted. Sorption mean free energy ( E ) was calculated by using D-R equation and interpreted. (author)

Availability note (English)

Available from Pakistan Institute of Nuclear Science and Technology, Scientific Information Division, Islamabad. (Pakistan).

Additional details

Publishing Information

Imprint Pagination
[107 p.].

INIS

Country of Publication
Pakistan
Country of Input or Organization
Pakistan
INIS RN
25054477
Subject category
S37: INORGANIC, ORGANIC, PHYSICAL AND ANALYTICAL CHEMISTRY; S37: INORGANIC, ORGANIC, PHYSICAL AND ANALYTICAL CHEMISTRY;
Resource subtype / Literary indicator
Thesis, Non-conventional Literature
Descriptors DEI
ADSORPTION; ALUMINIUM OXIDES; DYES; ENTHALPY; ENTROPY; FREE ENERGY; INTERFERING ELEMENTS; LANGMUIR FREQUENCY; SILICA GEL; SPECTROPHOTOMETRY
Descriptors DEC
ADSORBENTS; ALUMINIUM COMPOUNDS; CHALCOGENIDES; ENERGY; OXIDES; OXYGEN COMPOUNDS; PHYSICAL PROPERTIES; SORPTION; THERMODYNAMIC PROPERTIES