Pesticides and herbicides have been used extensively in agricultural practices to control pests and increase crop yields. Paraquat (PQT2+, 1,1-dimethyl-4,4-dipyridinium chloride) is one of the herbicide that belois classifed as bipyridines and is used over the world. | Removal and extraction efciency of Quaternary ammonium herbicides paraquat PQ from aqueous solution by ketoenol pyrazole receptor functionalized silica hybrid adsorbent SiNPz