Efficiency Evaluation of the Graphene Oxide in Adsorption of Malathion Toxin from Aqueous Media

The introduction of pesticides into drinking water sources has harmful effects on human health and the environment. In recent years, several methods for the removal of organophosphate pesticide water sources have been emerged. The aim of the present study was to determine the modified nanographene oxide efficiency in the removal of malathion from aqueous media. Optimization of effective parameters in the adsorption process including pH and conact time was performed. Measuring the absorbance rate of malathion was carried out using atomic adsorption spectrometer. The results of pH experiments showed that the optimal pH for malathion adsorption was 7. The removal percentage at this pH was 99.8. The study of the contact time of adsorbent with metal ion showed that the highest adsorption rate obtained within less than 2 min