Adsorption of Cd (II), Cu (II), and Zn (II) from Aqueous Solution onto Nitrogen-Functionalized Desmostachya bipinnata

A very simple means of nitrogen functional group grafting onto the backbone of Desmostachya bipinnata is investigated, which is a sacrificial herb in the south Asian region particular toHindu religion. This natural biomaterial is found to be very effective formetal binding, after treatment with hydrazine monohydrate. The present study explores a comparison of amination processes by considering several options.The maximum metal loading capacities for Cd, Cu, and Zn were found to be 76.80mg/g, 72.10mg/g, and 58.16mg/g, respectively.The kinetic evaluation indicated that the adsorption of Cd, Cu, and Zn onto the biomaterials followed the pseudo second-order rate equation.