Abstract:
A photobiological approach to solar energy utilization
is possible and long established. Many attempts are
being made to use photochemical methods to convert solar
energy into usable forms. In this study, we have investigated
some systems whirh may be utilized to convert solar energy
into usable forms by Photochemical means.
It was found that cuprous chloride coated cuprous
hydroxide behaves as a catalyst in the photoreduction
o f Nitrogen to Ammonia. The high activity o f the catalyst
is mainly attributed to the good charge separation and
the chemisorbtion of nitrogen.
Hydrogen production from water using solar energy
constitutes a recycling and ecologically sound energy system.
It was found in the present study that the two systems
acetic acid in the presence o f CuCl^ and D-glucose and
starch in aqueous solutions o f CuCL, produced a comparatively
good hydrogen yield in the laboratory s ca le . In both
these systems, Trichlorocuprate (II) ion acts as the
PhotocataLyst. A two way photosystem MnC^/TiC^ in aqueous
medium which gave better results has several advantages
compared to the earlier systems.
It was also found that TiC^ can successfully
employed as a Photocatalyst in water purification systems.
The poss ibility of using TiC^ removing Methyl Violet
dye present as a contaminant in water and the conversion
of nitrite ions to a less harmful nitrate ions in water
were studied as model systems.
