Hi Thilagan,

Here are some useful links and pdf attachments for persual.

http://www.ncbi.nlm.nih.gov/pmc/articles/PMC3421162/

http://www.sciencedirect.com/science/article/pii/S1364032114005450

Best of Luck

Thank you  Mr.Arvind Singh, for your opinion and also for the articles you have sent. Thank you Mr. Ashkan Vafadar and Mr. Kenneth.M.Towe for your valuable information. I hope I'll find a good solution to capture CO2 in future. I'll share my findings with you. 

More suggestions are welcome..

CO2 capture and storage is an approach to reduce CO2 emission in the atmosphere for climate change mitigation. Large quantity of anthropogenic CO2 emitted in the atmosphere comes from fossil fuel power plants which include post-combustion, precombustion and oxyfuel methods. The efficiency of CO2 capture technology depends on the composition of flue gas from these power plants. There are variable technologies which include absorption, adsorption, cryogenic and membrane separation. Absorption technology using MEA as absorbent is the most developed in CO2 capture technology. However, this method is still encountering challenges due to absorbent degradation, high energy for regeneration and material corrosion. Therefore, researchers are focused on the development of adsorption technology which predicts the potential of an efficient CO2 separation from high dilution in the flue gas, and also low energy for regeneration. However, there are still some challenges to circumvent, which include water tolerance as mostly the flue gas contains moisture, CO2 selectivity for other gas (N2 and O2) and size of bed reactor for industrial scale. For the CO2 from air, the adsorption technology is the best compared to absorption.  

Thank you Mr. Jacob Masiala Ngoy for your valuable information.

Thank you Mr. Kenneth.M.Towe for the information. CO2 can be absorbed either in to sodium hydroxide solution or calcium hydroxide solution and converted in to CaCO3. But in case of very low concentrations such as atmospheric air, I think it will not work good. Am I right Sir?

Thank you Mr.Eslam Gomaa ِAl-Sakkari

The concentration of CO2 in air is very low; this becomes a challenge for CO2 capture. The capture of CO2 from air using the absorption technology predicts to be ineffective as a large quantity of absorbent with recycling process is required in order to increase the concentration of CO2. Conversely, the use of adsorption technology to capture CO2 diluted in air predicts to be more efficient when using a relevant adsorbent especially grafted with amine.  

Article Energizing the CO2 utilization by Chemo-enzymatic approaches...