Characterization of Montmorillonite–Biochar Composite and Its Application in the Removal of Atrazine in Aqueous Solution and Soil

Atrazine is a widely used triazine herbicide, which poses serious threat to human health and aquatic ecosystem. A montmorillonite–biochar composite (MMT/BC) was prepared for atrazine remediation. Biochar samples were characterized by using scanning electron microscope (SEM), transmission microscopy (TEM), Fourier transform infrared spectroscopy (FTIR), X-ray photoelectron spectrometer (XPS). Structural morphological analysis of raw biochar (BC) MMT/BC showed that MMT particles have been successfully coated on the surface biochar. Sorption experiments in aqueous solution indicated has higher removal capacity compared BC (about 3.2 times). The sorption primarily controlled both physisorption chemisorption mechanisms. amendment increased soils delayed degradation atrazine. Findings from this work indicate can effectively improve environment farmland soil reduce environmental risk.