Effect of Multi-Walled Carbon Nanotubes in Removing pb and Cd in Contaminated Bio Medical Ash

Abstract

Heavy metal pollution is one of the most serious environmental problems. As a result, the present research is an overview of the use of nanotechnologies that are being developed to remove or treat such pollutants from the environment. There is no text provided. Multi-walled carbon nanotubes have effectively eliminated cadmium (II) and lead (II) from biomedical ash. The findings demonstrated that the rate of adsorption escalated as the temperature of the solution increased, owing to the fact that the adsorption process is endothermic in nature. An analysis was conducted on the adsorption of cadmium (II) and lead (II) on multi-walled carbon nanotubes. The kinetics of this process were examined using three models: quasi-first-order, quasi-second-order Lagergren, and fractional energy function. The findings indicated that the adsorption of heavy metal ions followed a quasi-second-order mechanism, and the adsorption capacity exhibited a positive correlation with the solution temperature. The binding of metal ions by carbon nanotubes was evaluated through the adsorption capacity and was found to be as follows: 7.93%, 8.33%, 73.50% and 92.46% respectively of pb adsorption capacities and for Cd the results were 67.92%,29.30%,6.30%and 2.27% after adding three different concentration of MWCNTs (0.0%) as check control (CK) and the other concentrations are (0.01%,0.05% and 0.10%) respectively and it found that the order: Lead(II) <Cadmium(II). The use of nanotechnologies has paved the way for more researchers to cope with problems. The evolution of Nanotechnologies for heavy metal remediation, such as cadmium and Lead is discussed in this research because it is one of the most hazardous heavy metals that needs immediate attention.