Synthesis of core/shell nanoparticles and their application in hydroxy-PAHs extraction

Abstract

Abstract The study summarizes using a new synthesized core/shell type of nanoparticles to remove hydroxy-polycyclic aromatic hydrocarbons (PAHs). The Fe2O3 coated with several groups of compounds (Triethoxysilane, Trimethoxy (2-phenylethyl) silane, (3-aminopropyl) triethoxy silane) and tested for removal of hydroxy PAHs from aqueous solution. The synthesized Core/shell nanoparticles characterized Using several techniques such as XRD analysis of The synthesized nanoparticles show the amorphous structure. However, utilizing the technique of room temperature fluorescence spectroscopy to determine the detection limit (LOD) and the quantitative limit (LOQ) of the hydroxyl PAHs, and it found (75%Triethoxysilane, 83%Trimethoxy (2-phenylethyl) silane, 90%(3-aminopropyl) triethoxy silane). An aqueous solution used to extract hydroxy PAHs to the synthesized nanoparticle, and the removal percentage was (91% 1-Hydroxy pyrene, 88% 9-Hydroxy fluorene,86% 2-Naphthol). The results obtained showed the high value of the removal ratio that indicates the tremendous power of the synthesized nanoparticles on PAH removal.