Construction of Zeolitic Imidazolate Framework-8 Decorated Graphene Oxide-Loaded Po43- With Superior Anti-Corrosion Performance in the Saline Solution

The financial and moral problems of metal corrosion have caused a lot of damages to the industry and human life. researchers have tried to find effective ways to prevent or delay metal corrosion. porous containers like silica, zeolite, carbon hollow sphere and etc. are more conventional corrosion inhibitors containers. today, porous coordination polymers like metal-organic framework (mof) with special features like high porosity, high surface area, thermal stability, ph-sensitivity effect are wildly used in various fields i.e., drug delivery, sensing, and molecular storage. because of these unique features, it seems that mofs could be used as novel corrosion inhibitors containers. zeolitic imidazolate framework-8 (zif-8) is one of the special kinds of mofs. as containers were used in a different kind of coating, decoration of the barrier fillers like graphene oxide by mofs loaded corrosion inhibitors could provide both active/barrier features. in this study, for the first time, graphene oxide (go) decorated zif-8 nanoparticles (go/zif-8) loaded with phosphate ions (po43-) was introduced as a novel anti-corrosion pigment. field emission scanning electron microscopy (fe-sem), and fourier transform infrared spectroscopy (ft-ir) techniques were used to confirm successful coprecipitation synthesis of po43-go/zif-8 powder. electrochemical impedance spectroscopy (eis), and fe-sem conjugated energy dispersive spectroscopy (eds) were applied to study the corrosion resistance of the mild steel immersed in the 3.5 wt. % nacl solution containing 2000 ppm of po43-go/zif-8 particles in the different immersion times. high anti-corrosion performance of po43-go/zif-8 particles compared to the blank sample was observed during the time.

Construction of Zeolitic Imidazolate Framework-8 decorated graphene oxide-loaded PO43- with superior anti-corrosion performance in the saline solution

The financial and moral problems of metal corrosion have caused a lot of damages to the industry and human life. Researchers have tried to find effective ways to prevent or delay metal corrosion. Porous containers like silica, zeolite, carbon hollow sphere and etc. are more conventional corrosion inhibitors containers. Today, porous coordination polymers like metal-organic framework (MOF) with special features like high porosity, high surface area, thermal stability, pH-sensitivity effect are wildly used in various fields i.e., drug delivery, sensing, and molecular storage. Because of these unique features, it seems that MOFs could be used as novel corrosion inhibitors containers. Zeolitic imidazolate framework-8 (ZIF-8) is one of the special kinds of MOFs. As containers were used in a different kind of coating, decoration of the barrier fillers like graphene oxide by MOFs loaded corrosion inhibitors could provide both active/barrier features. In this study, for the first time, graphene oxide (GO) decorated ZIF-8 nanoparticles (GO/ZIF-8) loaded with phosphate ions (PO43-) was introduced as a novel anti-corrosion pigment. Field emission scanning electron microscopy (FE-SEM), and Fourier transform infrared spectroscopy (FT-IR) techniques were used to confirm Successful coprecipitation synthesis of PO43-GO/ZIF-8 powder. Electrochemical Impedance Spectroscopy (EIS), and FE-SEM conjugated energy dispersive spectroscopy (EDS) were applied to study the corrosion resistance of the mild steel immersed in the 3.5 wt. % NaCl solution containing 2000 ppm of PO43-GO/ZIF-8 particles in the different immersion times. High anti-corrosion performance of PO43-GO/ZIF-8 particles compared to the blank sample was observed during the time.