Sorption behavior of microamounts of zinc on titanium oxide from aqueous solutions

Journal Article · Thu Aug 01 04:00:00 EDT 1991 · Separation Science and Technology; (United States)

DOI:https://doi.org/10.1080/01496399108050519· OSTI ID:6064032

Hasany, S M; Ghaffar, A ^[1]; Chughtai, F A ^[2]

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1. Pakistan Inst. of Nuclear Science and Technology, Islamabad (Pakistan)
2. Univ. of Agriculture, Faisalabad (Pakistan)

To correlate soil response toward zinc, it is necessary to study its adsorption in detail on soils or on their constituents. The adsorption of microamounts of zinc on titanium oxide, prepared and characterized in this laboratory, has been studied in detail. Zinc adsorption has been found to be dependent on the pH of the aqueous solution, amount of oxide, and zinc concentration. Maximum adsorption is from pH 10 buffer. EDTA and cyanide ions inhibit adsorption significantly. The adsorption of other elements under optimal conditions has also been measured on this oxide. Sc(III) and Cs(I) show almost negligible adsorption. Zinc adsorption follows the linear form of the Freundlich adsorption isotherm: log C{sub Ads} = log A + (1/n) log C{sub Bulk} with A = 0.48 mol/g and n = 1. Except at a very low bulk concentration (3 {times} 10{sup {minus}5} mol/dm{sup 3}), Langmuir adsorption isotherm is also linear for the entire zinc concentration investigated. The limiting adsorbed concentration is estimated to be 0.18 mol/g.

• OSTI ID: 6064032
• Journal Information: Separation Science and Technology; (United States), Journal Name: Separation Science and Technology; (United States) Vol. 26:8; ISSN SSTED; ISSN 0149-6395
• Country of Publication: United States
• Language: English

Related Subjects

54 ENVIRONMENTAL SCIENCES
540211 -- Environment
Terrestrial-- Basic Studies-- Radiometric Techniques-- (1990-)
540220* -- Environment
Terrestrial-- Chemicals Monitoring & Transport-- (1990-)
560300 -- Chemicals Metabolism & Toxicology
63 RADIATION, THERMAL, AND OTHER ENVIRON. POLLUTANT EFFECTS ON LIVING ORGS. AND BIOL. MAT.
ADSORPTION
ADSORPTION ISOTHERMS
ALKALI METALS
AMINO ACIDS
BETA DECAY RADIOISOTOPES
BETA-MINUS DECAY RADIOISOTOPES
BETA-PLUS DECAY RADIOISOTOPES
BIOLOGICAL AVAILABILITY
CARBOXYLIC ACIDS
CESIUM
CHALCOGENIDES
CHELATING AGENTS
CHEMICAL ANALYSIS
COHERENT SCATTERING
CYANIDES
DATA
DAYS LIVING RADIOISOTOPES
DENSITY
DIFFRACTION
EDTA
ELECTROMAGNETIC RADIATION
ELECTRON CAPTURE RADIOISOTOPES
ELEMENTS
EMISSION SPECTROSCOPY
ENRICHED URANIUM REACTORS
EVEN-ODD NUCLEI
EXPERIMENTAL DATA
GRAVIMETRIC ANALYSIS
INFORMATION
INFRARED RADIATION
INHIBITION
INTERMEDIATE MASS NUCLEI
INTERNAL CONVERSION RADIOISOTOPES
IRRADIATION
ISOMERIC TRANSITION ISOTOPES
ISOTHERMS
ISOTOPE APPLICATIONS
ISOTOPES
METALS
NONDESTRUCTIVE ANALYSIS
NUCLEI
NUMERICAL DATA
ODD-ODD NUCLEI
ORGANIC ACIDS
ORGANIC COMPOUNDS
OXIDES
OXYGEN COMPOUNDS
PARR REACTOR
PH VALUE
PHYSICAL PROPERTIES
POOL TYPE REACTORS
POROSITY
QUANTITATIVE CHEMICAL ANALYSIS
QUANTITY RATIO
RADIATIONS
RADIOISOTOPES
RADIOMETRIC ANALYSIS
REACTORS
RESEARCH AND TEST REACTORS
RESEARCH REACTORS
SAMPLE PREPARATION
SCANDIUM
SCANDIUM 46
SCANDIUM ISOTOPES
SCATTERING
SECONDS LIVING RADIOISO
SOILS
SORPTION
SORPTIVE PROPERTIES
SPECTROSCOPY
SURFACE AREA
SURFACE PROPERTIES
THERMAL ANALYSIS
THERMAL GRAVIMETRIC ANALYSIS
TITANIUM COMPOUNDS
TITANIUM OXIDES
TRACER TECHNIQUES
TRANSITION ELEMENT COMPOUNDS
TRANSITION ELEMENTS
UPTAKE
WATER COOLED REACTORS
WATER MODERATED REACTORS
X-RAY DIFFRACTION
X-RAY EMISSION ANALYSIS
X-RAY FLUORESCENCE ANALYSIS
ZINC
ZINC 65
ZINC ISOTOPES