Abstract
Novel environmentally-friendly corrosion inhibitors based on primary aminated modified cellulose (PAC) containing nano-oxide of some metals (MONPs), for instance iron oxide nanoparticles (Fe3O4NPs), copper oxide nanoparticles (CuONPs), and nickel oxide nanoparticles (NiONPs), were successfully synthesized. The as-prepared PAC/MONPs nanocomposites were categorized using Fourier transform infrared spectroscopy (FT-IR), transmission electron microscope (TEM), field-emission scanning electron microscopy (FE-SEM), energy-dispersive X-ray spectroscopy (EDX), X-ray diffraction (XRD), and selected area diffraction pattern (SAED) techniques. The data from spectroscopy indicated that successful formation of PAC/MONPs nanocomposites, as well as the TEM images, declared the synthesized PAC/Fe3O4NPs, PAC/CuONPs, and PAC/NiONPs with regular distribution with particle size diameters of 10, 23 and 43 nm, respectively. The protection performance of the as-prepared PAC and PAC/MONPs nanocomposites on the corrosion of C-steel in molar HCl was studied by the electrochemical and weight-loss approaches. The outcomes confirmed that the protection power increased with a rise in the [inhibitor]. The protection efficiency reached 88.1, 93.2, 96.1 and 98.6% with 250 ppm of PAC/CuONP, PAC/Fe3O4NPs, and PAC/NiONPs, respectively. PAC and all PAC/MONPs nanocomposites worked as mixed-kind inhibitors and their adsorption on the C-steel interface followed the isotherm Langmuir model. The findings were reinforced by FT-IR, FE-SEM and EDX analyses.
Highlights
Corrosion is a dangerous phenomenon devastatingly affecting mechanical and modern applications, especially in the oil and gas enterprises
With regard to primary aminated modified cellulose (PAC), the results showed that it is similar to unmodified cellulose, as the results showed the presence of the OH stretching with an increase in the bandwidth, which designates the presence of the -N-H
Primary aminated cellulose (PAC) and the in-situ deposition of some metal oxide nanoparticles (MONPs) in PAC matrix were prepared, and their structures were characterized through Fourier transform infrared spectroscopy (FT-IR), fieldemission scanning electron microscopy (FE-SEM)/energy-dispersive X-ray spectroscopy (EDX), transmission electron microscope (TEM), selected area diffraction pattern (SAED), and X-ray diffraction (XRD)
Summary
Corrosion is a dangerous phenomenon devastatingly affecting mechanical and modern applications, especially in the oil and gas enterprises. Cellulose is the amongst the carbohydrate polymers and is sustainable by practically limitless crude material and encouraging as it delivers great mechanical execution with likely biocompatibility, non-harmfulness, biodegradability, and the existence of reactive gatherings This last element is engaging, as its additional modification would be possibly helpful when used to include another polymer, or adjust their properties which will offer new and capricious applications [21]. Among the wide assortment of metal oxide nanoparticles, Taiwo et al prepared and characterized nanocomposites of some designated polymers, namely, poly(vinylpyrrolidone), poly(ethylene glycol), and polyacrylonitrile containing ZnO, and studied their application as inhibitors for the corrosion of C-steel in hydrochloric acid solution [45]. Electrochemical (PDP and EIS), and surface topology measurements (FT-IR and FE-SEM/EDX), were used to identify the anti-corrosive activity
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