Biochar for Carbon Dioxide (Co2) Capture and Sequestration

Abstract

As we all know that global warming is increasing at an alarming rate and the contribution of Carbon dioxide (CO2) is involved at large scale. Thus many scientists are working on how we can reduce CO2 release that is effecting our environment as well as health of a mankind. We already know that the plants are capable of absorbing CO2 but looking in the current scenario CO2 released in environment is much higher than CO2 absorbed by the plants. Thus one of the way on which scientists are paying attention is Biochar. Biochar is obtained from the waste materials that include plant wastes and other degradable waste. Pyrolysis is a process through which biochar can be obtained and it has various positive effects. Use of biochar is one of the effective ways that can entrap CO2 and convert it into value added products. Therefore certain modification can be done in a biochar that would ultimately increase the CO2 absorption and ultimately reduces global warming. Pretreatment of biochar with phosphoric acid has improved carbon retention and sorption ability of biochar. The results by adding phosphoric acid even shows that specific surface area of treated biochar was also increased that would ultimately increase the carbon absorption. Furthermore incorporation of metals such as magnesium chloride, magnesium acetate, and magnesium nitrate and magnesium sulphate in the biochar has lead to enhancement of CO2 adsorption capacity. Different studies have found that biochar is an effective and eco friendly way to reduce global warming. Various modifications in biochar by adding different chemicals and metals into it has proven to be more effective by increasing CO2 adsorption to the greater extent. Thus here we will see how effective biochar has proven to be beneficial for our environment and what certain medication can be performed on biochar by adding enzymes or chemicals that would ultimately increase CO2 adsorption and we can ultimately reduce the presence of CO2 in our environment.