A Novel Nanocomposites for Photocatalytic Degradation of Pesticide

Polyamidoamine dendrimer (PAMAM) functionalized with MoS۲ nanoparticles (PAMAM-MoS۲ nanocomposites) was synthesized and fully characterized using field-emission scanning electron microscopy, Fourier-transform infrared spectroscopy and X-ray diffractometry, analysis. The synthesized nanocomposite showed excellent photocatalytic activities for the degradation of two commonly used pesticide (chlorpyrifos). Based on the kinetics study on the photocatalytic reaction, it was inferred that more than ۹۵% of the pesticides were degraded into non-harmful products in less than two hours. By comparing the obtained data in this study with previous reports for photocatalytic degradation of chlorpyrifos, it was concluded that the present nanocomposite was able to degrade pesticides faster and more efficient.