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- 저자 : M.M. Eluskkary (검색결과 1 건)
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Ahmed H. Elged,Samy M. Shaban,M.M. Eluskkary,I. Aiad,E.A. Soliman,Asma M. Elsharif,김동환 한국공업화학회 2021 Journal of Industrial and Engineering Chemistry Vol.94 No.-
In this study, three anionic-cationic zwitterionic Gemini surfactants containing three differenthydrophobic tails were prepared and their chemical structures were confirmed by Fourier transforminfrared (FTIR) and 1H nuclear magnetic resonance (NMR) spectroscopy. The hydrophobic tail of thesynthesized phospho-zwitterionic Gemini surfactants significantly affected the morphological structureof silver nanoparticles (AgNPs) prepared using a photochemical reduction method, which utilizedsunlight as a surplus source of a reducing agent. Increasing the hydrophobic tail length of the surfactantpromoted the formation of AgNPs exhibiting smaller particle sizes with a uniform structure. Moreover, asconfirmed by ultraviolet-visible (UV-Vis) spectroscopy, dynamic light scattering (DLS), and transmissionelectron microscopy (TEM), these AgNPs displayed higher stability in solution than those synthesized inthe presence of Gemini surfactants with a shorter hydrocarbon tail. The impact of tail variation on thecatalytic and antimicrobial performance of AgNPs was also examined. The synthesized surfactant/AgNPsystems showed remarkable catalytic activity in the removal of certain toxic pollutants, including paranitrophenol(p-NP) and methylene blue (MB), which were converted into less toxic compounds in thepresence of NaBH4. Notably, the surfactant exhibiting the longest chain hydrocarbon, i.e., ZGH, producedAgNPs with the highest catalytic activity. This is thefirst study concerning the effects of the surfactant tailon the catalytic activity of NPs. The good biological performance of the synthesized Gemini surfactantsagainst sulfate-reducing bacteria (SRB) demonstrated their potential for application in mitigating thegrowth of SRB during petroleum treatment processes. The combination of the synthesized surfactantswith AgNPs significantly enhanced their biological performance.
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