Adsorption Kinetics of Imidacloprid, Acetamiprid and Methomyl Pesticides in Aqueous Solution onto Eucalyptus Woodchip Derived Biochar

This work reports the application of a biochar (BC) derived from eucalyptus wood chips to remove pesticides (imidacloprid, acetamiprid and methomyl) water. The pseudo-second order kinetic adsorption model is best fit describing on BC. Furthermore, Langmuir correlated well with isotherm data for methomyl, while Freundlich was selected explain imidacloprid maximum capacities BC material are 32.42, 14.75 4.87 mg g−1, respectively. highest capacity methomyl surface could be result multilayer suggested by studies, (or acetamiprid) monolayer being adsorbed surface. structure, functional groups pesticides, including their polarity, all played an important role contributing performance sorbent. Preferable interactions between studied may include π-π hydrogen bonding. steric aromatic entity in hinder possibility other pesticide molecules approaching available sorption sites