Particulate models of photosynthesis. Annual progress report

Technical Report · Wed Sep 01 00:00:00 EDT 1982

OSTI ID:6720159

Seely, G R

A program was initiated to study the photochemical and photophysical properties of chlorophyll adsorbed together with various surfactants to particles of polyethylene swollen with low molecular weight diluents, with the eventual objective of establishing conditions for useful conversion of solar energy. The specific objectives of the program are (1) to prepare such particulate systems and characterize them, especially through analysis of their absorption and fluorescence spectra, (2) to investigate quantitatively the photochemistry of pigments in densely scattering media, and (3) to develop an analog of Photosystem II of green plants, in which a strong oxidant is generated in one phase and a mild reductant is accumulated in another. Results to date have shown that chlorophyll association and spectra are characteristic of the surfactant adsorbed with it, and that the particulate systems are capable of a vigorous and sometimes novel photochemistry.

• Research Organization: Charles F. Kettering Research Lab., Yellow Springs, OH (USA)
• DOE Contract Number: AC02-82ER12039
• OSTI ID: 6720159
• Report Number(s): DOE/ER/12039-T3; ON: DE83000337
• Country of Publication: United States
• Language: English

Related Subjects

37 INORGANIC
ORGANIC
PHYSICAL AND ANALYTICAL CHEMISTRY
14 SOLAR ENERGY
CHLOROPHYLL
ADSORPTION
PHOTOCHEMISTRY
ABSORPTION SPECTRA
BIPYRIDINES
CHEMICAL BONDS
EXCITED STATES
FLUORESCENCE
PARTICLES
PHOTOSYNTHESIS
PIGMENTS
POLYETHYLENES
QUINONES
SURFACTANTS
AROMATICS
AZINES
CARBOXYLIC ACIDS
CHEMICAL REACTIONS
CHEMISTRY
ENERGY LEVELS
HETEROCYCLIC ACIDS
HETEROCYCLIC COMPOUNDS
LUMINESCENCE
ORGANIC ACIDS
ORGANIC COMPOUNDS
ORGANIC NITROGEN COMPOUNDS
ORGANIC OXYGEN COMPOUNDS
ORGANIC POLYMERS
PHOTOCHEMICAL REACTIONS
PHYTOCHROMES
POLYMERS
POLYOLEFINS
PORPHYRINS
PYRIDINES
SORPTION
SPECTRA
SYNTHESIS
400500* - Photochemistry
140505 - Solar Energy Conversion- Photochemical
Photobiological
& Thermochemical Conversion- (1980-)