Ammonia-modified graphene sheets decorated with magnetic FeO nanoparticles for the photocatalytic and photo-Fenton degradation of phenolic compounds under sunlight irradiation.

Synthesis of easily separable and eco-friendly efficient catalyst with both photocatalytic and photo-Fenton degradation properties is of great importance for environment remediation application. Herein, ammonia-modified graphene (AG) sheets decorated with FeO nanoparticles (AG/FeO) as a magnetically recoverable photocatalyst by a simple in situ solution chemistry approach. First, we have functionalized graphene oxide (GO) sheets by amide functional group and then FeO nanoparticles (NPs) are doped onto the functionalized GO surface.

Magnetically recoverable FeO/graphene nanocomposite towards efficient removal of triazine pesticides from aqueous solution: Investigation of the adsorption phenomenon and specific ion effect.

Spillage of effluents containing high concentration levels of pesticides into water has been considered as one of the serious environmental problems. In this study FeO/reduced graphene oxide (rGO) nanocomposite has been efficiently utilized for the adsorption of five harmful pesticides namely ametryn, prometryn, simazine, simeton and atrazine in an aqueous medium. Electrostatic interaction between the pesticides and FeO/rGO nanocomposite was analyzed by the zeta potential analysis, which is strongly related to the adsorption capacity of the adsorbent.