The Application of Zinc Oxide Nanoparticles as An Eco-Friendly Inhibitor for Steel in Acidic Solution

Abstract

In this study, zinc oxide nanoparticles were prepared using a natural extract of Myrrh as green capping agent. The synthesized ZnO-NPs (Zinc Oxide Nanoparticles) were characterized using XRD and scanning electron microscopy, and the results revealed the synthesis of hexagonal wurtzite ZnO-NPs. The corrosion inhibition of steel in 1.0 M HCl using an aqueous extract of natural Myrrh and the greensynthesized ZnO-NPs was investigated at various concentrations using electrochemical impedance spectroscopy (EIS) measurements and potentiodynamic polarization (PDP). The results revealed that the corrosion inhibition process is exponentially increased with the inhibitor concentrations, and an inhibition effectiveness of 92% could be acquired. Polarization curves showed that the eco-friendly inhibitors perform as a cathodic inhibitor. Consequently, the obtained inhibition efficiency values derived from all chosen analysis techniques were in reasonably good agreement.

Biosynthesis Microwave-Assisted of Zinc Oxide Nanoparticles with Ziziphus jujuba Leaves Extract: Characterization and Photocatalytic Application

“…Currently, nanotechnology is based on the preparation, characterization and applications of different nanoparticles (NPs) such as metals, metal oxides, semiconductors, ceramics and polymers, due to their outstanding morphological, structural and physicochemical properties allowed the NPs to be the used in a wide variety of applications. Among the most commonly used nanoparticles is zinc oxide nanoparticles (ZnO NPs), which are usually used in different applications, such as corrosion protection [ 1 ], food packaging [ 2 ], biomedical [ 3 , 4 , 5 ], electronics [ 6 ], revolutionizing agriculture [ 7 ], textiles [ 8 ] and as photocatalysts for environmental applications [ 9 , 10 , 11 , 12 , 13 ]. The synthesis of ZnO NPs are usually based on various physical, and chemical process, such as via combustion, thermal decomposition, sol-gel method, mechanical synthesis combined with high-energy milling and hydrothermal methods, which are mainly based on the usage of different chemicals and reagents such as the aqueous solution of zinc nitrate, zinc sulphate or zinc acetate as the precursor, followed by provision of basic environment such as sodium hydroxide or ammonia, in addition to some additives acting similarly to capping agents to produce well defined nanoparticles such as polyethylenimine (PEI) or polyethylene glycol (PEG) [ 14 , 15 , 16 ].…”

Synthesis of ZnO-NPs Using a Convolvulus arvensis Leaf Extract and Proving Its Efficiency as an Inhibitor of Carbon Steel Corrosion

“…This contributes to the transfer of electrons from the d orbitals of Fe to the non-bonding π orbitals in the inhibitor molecules, thereby enhancing the inhibitor adsorption on the surface of the carbon steel [16,43].…”

Controlled dispersion of ZnO nanoparticles produced by basic precipitation in solvothermal processes

“…The diffractograms of synthesis II are shown in Figure 3. The first stage of precipitation (Zn 2þ and K 2 CO 3 ) results in hydrozincite, since the lattice parameters are related to the monoclinic cell centered with a ¼ 13.58 Å, b ¼ 6.280 Å and c ¼ 5.410 Å, accordingly to PDF 19-1458 (see Figure S1 in supplementary data). The second stage exhibits Zn(CH 3 COO) 2 reflections (PDF 01-0089) without specific lattice assignments, suggesting the presence of zinc acetate intermediaries layers.…”

“…In this regard, a wide variety of Zn 2þ salts have been used as precursors in basic media to produce ZnO NPs under precipitation methods [16]. The ZnSO 4 ⋅7H2O salt stands out for being low cost, easily soluble in water and suitable for many syntheses methods without other pretreatments [17,18,19]. Concerning the basic media, the Zn 2þ precursors have been reacted with aqueous solutions of strong bases (NaOH, LiOH and KOH), tuning the morphology of the nanoparticles in different ways [20,21,22,23,24,25,26], or using weak bases (NH 4 OH, urea and Na 2 CO 3 ) to generate outstanding achievements in morphology, size distribution and dispersion [27,28,29].…”