CausesEffects  Fossil fuels (Transport)  Industry  Deforestation  Aerobic Respiration  Agriculture  Decay of Biomass  Possible asphyxiation (If high enough)  Contributes to global warming  Increase in sea levels  Increase in chance of storms/cyclones

Capture and Conversion of carbon dioxide through using nanotechnology

Key topics Capture of Carbon dioxide 1. Metal Organic frameworks (MOF’S) 2. Nano-composites Conversion of Carbon dioxide into useful substances 3. Methane 4. Carbonates

CAPTURE Metal-Organic Frameworks Nanocomposite coating

MOF’S.  MOF’s - Metal Organic Frameworks.  Metal cluster and organic linking unit structure  High surface area, adjustable surface properties, flexible pore size  CO 2 molecules absorbed into pores  Increasing database of known MOF’s  Most reliable nanotechnology for carbon capture so far  MOF-177 able to store nine times more CO 2 upon being pressurised by 35 bar. Nanotechnology. It's no big deal.

Nanocomposites  Synthesized by many metal oxide Nano powders into an organic polymer  High selectivity, mechanical and thermal stability, flexibility and processability  Cost-effective, energy efficient  Final product sprayed onto any surface  Structured so carbon dioxide only absorbed. It's not what you nano, it's who you nano.

CONVERSION Calcium Carbonate – CaCO 3 Methane burning

CO 2 conversion to Methane  Methane –one of the most efficient hydrocarbons at storing energy  Nanosized Rhodium alumina catalyst does not require energy, only small source of O 2, low temperature and pressure.  Other process includes use of nano-tubes composed of titania and a co-catalyst.  Co-catalysts include platinum and/ or copper  CO 2 and H 2 O passed through membrane composed of titania nanotubes and co-catalyst, which converts into methane, hydrogen gas and oxygen in the presents of sunlight.  Process could be recycled. No, Bucky Balls isn't a cartoon character

Energy storage capacity

Rhodium alumina catalyst reaction with CO 2

Titania Nanotube Array with platinum/ copper co-catalyst.

CO 2 conversion to carbonate  Carbonic anhydrase can used to convert CO 2 to carbonate.  However process needs neutralisation with certain elements (e.g. Ca, Mg) to occur.  Synthetic Nano enzymes can replace natural enzymes as they are cheaper and don’t need neutralisation.  Flue gas run through water body with NiNP’s, carbonate formed  Magnetic properties of nickel, allows nanoparticles to be removed & reused. Nanotechnology. It's no big deal.

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