A study of the physical-chemical mechanisms and variables which affect the transport of inorganic and organic heterogeneous systems
In order to model transport of dissolved ions in subsurface environments, one should understand how these ions interact with solid phase adsorbents. Our primary goal has been investigating the reaction mechanisms which affect microcontaminant partitioning between aqueous solutions and solid phase adsorbents, using goethite ({alpha}-FeOOH) as a model adsorbent. Cylindrical internal reflection -- Fourier transform infrared (CIR-FTIR) spectroscopy has been developed as the primary technique for this study. Wet chemical adsorption studies, acoustophoresis and electrophoretic mobility have been used to obtain supporting information as needed. Phenol and o-nitrophenol did not adsorb to goethite. Benzoate, phthalate and p-hydroxybenzoate all adsorbed via a bidentate mechanism to two adjacent iron atoms, while salicylate and 2,4-dihydroxybenzoate formed a chelate complex to single iron atoms. Phosphate adsorption was predominately bidentate.
- Research Organization:
- Wisconsin Univ., Madison, WI (USA). Water Chemistry Program
- Sponsoring Organization:
- DOE/ER
- DOE Contract Number:
- FG02-87ER60508
- OSTI ID:
- 6454047
- Report Number(s):
- DOE/ER/60508-3; ON: DE91001304
- Country of Publication:
- United States
- Language:
- English
Similar Records
A study of the physical-chemical mechanisms and variables which affect the transport of inorganic and organic heterogeneous systems: Annual progress report for 1986-1987
A study of the physical-chemical mechanisms and variables which affect the transport of inorganic and organic heterogeneous systems: Progress report for period December 15, 1987--December 14, 1988
In-situ CIR-FTIR (cylindrical internal reflection/Fourier transform infrared) characterization of salicylate complexes at the goethite/aqueous solution interface
Technical Report
·
Wed Dec 31 23:00:00 EST 1986
·
OSTI ID:6144902
A study of the physical-chemical mechanisms and variables which affect the transport of inorganic and organic heterogeneous systems: Progress report for period December 15, 1987--December 14, 1988
Technical Report
·
Mon Aug 01 00:00:00 EDT 1988
·
OSTI ID:6870015
In-situ CIR-FTIR (cylindrical internal reflection/Fourier transform infrared) characterization of salicylate complexes at the goethite/aqueous solution interface
Journal Article
·
Fri Jun 01 00:00:00 EDT 1990
· Environmental Science and Technology; (United States)
·
OSTI ID:5466448
Related Subjects
37 INORGANIC, ORGANIC, PHYSICAL, AND ANALYTICAL CHEMISTRY
400201* -- Chemical & Physicochemical Properties
54 ENVIRONMENTAL SCIENCES
540220 -- Environment
Terrestrial-- Chemicals Monitoring & Transport-- (1990-)
ADSORPTION
AQUEOUS SOLUTIONS
AROMATICS
BENZOIC ACID
CARBOXYLIC ACID SALTS
CARBOXYLIC ACIDS
CHELATES
COMPLEXES
DISPERSIONS
DOCUMENT TYPES
ENVIRONMENTAL TRANSPORT
GOETHITE
HYDROXY COMPOUNDS
MASS TRANSFER
MINERALS
MIXTURES
MONOCARBOXYLIC ACIDS
ORGANIC ACIDS
ORGANIC COMPOUNDS
OXIDE MINERALS
OXYGEN COMPOUNDS
PH VALUE
PHENOLS
PHOSPHATES
PHOSPHORUS COMPOUNDS
PHTHALATES
PROGRESS REPORT
SOLIDS
SOLUTIONS
SORPTION
SORPTIVE PROPERTIES
SPECTROSCOPY
SURFACE PROPERTIES
400201* -- Chemical & Physicochemical Properties
54 ENVIRONMENTAL SCIENCES
540220 -- Environment
Terrestrial-- Chemicals Monitoring & Transport-- (1990-)
ADSORPTION
AQUEOUS SOLUTIONS
AROMATICS
BENZOIC ACID
CARBOXYLIC ACID SALTS
CARBOXYLIC ACIDS
CHELATES
COMPLEXES
DISPERSIONS
DOCUMENT TYPES
ENVIRONMENTAL TRANSPORT
GOETHITE
HYDROXY COMPOUNDS
MASS TRANSFER
MINERALS
MIXTURES
MONOCARBOXYLIC ACIDS
ORGANIC ACIDS
ORGANIC COMPOUNDS
OXIDE MINERALS
OXYGEN COMPOUNDS
PH VALUE
PHENOLS
PHOSPHATES
PHOSPHORUS COMPOUNDS
PHTHALATES
PROGRESS REPORT
SOLIDS
SOLUTIONS
SORPTION
SORPTIVE PROPERTIES
SPECTROSCOPY
SURFACE PROPERTIES