Auger electron spectroscopy and x-ray photoelectron spectroscopy of the biocorrosion of copper by Gum Arabic, BCS and Pseudomonas atlantica exopolymer
Thin films (3.4 nm) of copper on germanium substrates were exposed to 10% Gum Arabic aqueous solution, 1% BCS (aqueous and simulated sea water solutions) and 0.5% Pseudomonas atlantica exopolymer (aqueous and simulated sea water solutions). Pre- and post-exposure characterization were done by Auger electron spectroscopy and x-ray photoelectron spectroscopy. Ancillary graphite furnace atomic absorption spectroscopy was used to monitor the removal process of the copper thin film from the germanium substrate. Results indicate that the copper was oxidized by the Gum Arabic and BCS, and some was removed from the Cu/Ge interface by all three polymers and incorporated into the polymer matrix. Thus biocorrosion of copper was exhibited by the Gum Arabic, BCS and Pseudomonas atlantica exopolymer. 14 refs., 4 figs., 3 tabs.
- Research Organization:
- EG and G Idaho, Inc., Idaho Falls (USA); California State Univ., Long Beach (USA). Dept. of Microbiology
- DOE Contract Number:
- AC07-76ID01570
- OSTI ID:
- 5905874
- Report Number(s):
- EGG-M-10187; CONF-8706216-1; ON: DE87014871
- Resource Relation:
- Conference: 9. symposium on applied surface analysis, Dayton, OH, USA, 5 Jun 1987; Other Information: Portions of this document are illegible in microfiche products
- Country of Publication:
- United States
- Language:
- English
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Related Subjects
37 INORGANIC
ORGANIC
PHYSICAL AND ANALYTICAL CHEMISTRY
COPPER
BIODEGRADATION
CORROSION
REMOVAL
GUM ACACIA
CORROSIVE EFFECTS
PSEUDOMONAS
SEAWATER
ABSORPTION SPECTROSCOPY
AQUEOUS SOLUTIONS
AUGER ELECTRON SPECTROSCOPY
BINDING ENERGY
GERMANIUM
MATERIALS TESTING
OXIDATION
PHOTOELECTRON SPECTROSCOPY
POLYMERS
SUBSTRATES
THIN FILMS
UPTAKE
BACTERIA
CARBOHYDRATES
CHEMICAL REACTIONS
DECOMPOSITION
DISPERSIONS
ELECTRON SPECTROSCOPY
ELEMENTS
ENERGY
FILMS
HYDROGEN COMPOUNDS
METALS
MICROORGANISMS
MIXTURES
ORGANIC COMPOUNDS
OXYGEN COMPOUNDS
POLYSACCHARIDES
SACCHARIDES
SOLUTIONS
SPECTROSCOPY
TESTING
TRANSITION ELEMENTS
WATER
360105* - Metals & Alloys- Corrosion & Erosion
400201 - Chemical & Physicochemical Properties