Abstract Most of existing nanocontainers suffer from tedious, complicated and unsustainable assembly process which restricts their application in corrosion protection as smart inhibitor carriers. In this study, we adopted the framework-hybridization approach to prepare a smart anticorrosion system (MBT@Ph-HPMO), with MBT inhibitor as cargo and phenylene-bridged hollow periodic mesoporous organosilica (Ph-HPMO) as nanocontainer. Results reveal that the π-π stacking between MBT and framework of Ph-HPMO serves as nature valve, which is supplemented by the molecular dynamic simulation. The encapsulated inhibitor was loaded into Ph-HPMO at neutral pH, demonstrating fast release in acidic environment. On-demand release of inhibitors from MBT@Ph-HPMO contributed to achieving in situ active corrosion protection. Anticorrosion performance of MBT@Ph-HPMO for copper alloy was evaluated in 3.5 wt% NaCl solution for a period of 30 days. The alloy exhibited the slightest corrosion damage in the corrosion medium with the addition of 0.24 wt% MBT@Ph-HPMO. This facile and versatile strategy will have broad applications in new class of nanocontainers fabrication and open up a new prospect for active corrosion protection.
Abstract There are increasing demands for self-healing anti-corrosion coatings with high efficiency and durability in various industrial applications. Recently, eumelanin polymers especially polydopamine (PDA)-based nanostructures have been served as a mussel-inspired strategy to provide such requirements due to the intrinsic adhesive nature of amines and catechols along with its film-forming ability. Nevertheless, direct embedment of hydrophilic PDA nanoparticles into polymer coatings could eve...
Abstract Designing a novel epoxy composite system with dual self-healing/barrier anti-corrosion functions using graphene oxide (GO) nano-platforms decorated by polypyrrole (PPy) nanoparticles doped with zinc metal ions is the major objective of this research attempt. GO-PPy-Zn nanoplatform was fabricated via one-pot polymerization of pyrrole monomers on GO and two direct/indirect methods of zinc doping. In order to verify the PPy nanoparticles synthesis on GO sheets several analyses such as UV–v...
Abstract For the first time, a novel metal-organic framework (MOF)-like nano-pigment was synthesized for fabrication of a high-performance epoxy composite material with excellent anti-corrosion and thermo-mechanical properties. The nanoceria-decorated cerium (III)-imidazole Network (NC/CIN) as a new metal-organic network (MON) structure was produced by a one-pot co-precipitation route through covalent and/or coordinate networking of cerium (III) as metallic cation centers and 2-methylimidazole a...
Abstract In the current paper, the graphene oxide (GO) nano-sheets were benefited as a promising nano-carrier for Pr 3+ cations for corrosion inhibition. The optimal experimental condition for Pr 3+ cations loading was obtained. The thermodynamic and kinetic of adsorption process were studied in detail. According to the results of ICP analysis, the highest adsorption capacity of GO was found in the initial pH of 7, 0.00319 g of adsorbent dosage, 600 ppm of initial Pr 3+ concentration, 30 min con...
Abstract This research introduces a green/novel route for preparation of an epoxy system with bi-functional active/passive anti-corrosion properties via inclusion of modified/reduced graphene nanoparticles. For the first time, the reduced nanosheet (RGO) with the barrier-inhibitive activities was prepared using bioactive reductant based on histamine. Also, zinc cations were loaded onto RGO sheets by two sequence based (RGO-Hist-Zn-I nanosheet) and in-situ based (RGO-Hist-Zn-II nanosheet) approac...
Hollow periodic mesoporous organosilicas (PMOs) with molecularly homogeneous organic functional groups in the inorganic pore walls are attracting more and more attention due to the high surface areas, tunable pore sizes, low densities, large cavities in the center, permeable thin shells, and versatile organic–inorganic hybrid frameworks, which make them promising in a variety of applications including adsorption, catalysis, drug delivery, and nanotheranostics. Herein, recent advances in the synt...
Last. Amin Fateh(TMU: Tarbiat Modares University)H-Index: 5
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Abstract In this study, the clay nanotubes were loaded with green corrosion inhibitor obtained from the basil aqueous extract through a vacuum-assisted procedure. The nanocontainers with long-term inhibitive performance were synthesized and introduced to the alkyd coating for corrosion protection of mild steel substrates against the saline solution. The basil loaded halloysite nanotubes (BHNs) were characterized by thermogravimetric analysis, field emission scanning electron microscopy, ultravio...
Abstract Herein, we demonstrated a facile non-covalent functionalization route to exploit the GO sheets as an efficient carrier for high loading of Zn(II) corrosion inhibitor with the controllable slow release. The Zn(II) intercalated GO exhibited good compatibility with epoxy matrix stemming from the chemical and structural alterations as confirmed by Raman analysis along with XPS, FE-SEM and HRTEM. The kinetics of Zn(II) release from the GO carrier revealed the consistency of experimental data...
#1Bing Hu(HBUT: Hubei University of Technology)H-Index: 8
#2Lingyu Han(HBUT: Hubei University of Technology)H-Index: 5
Last. Yapeng Fang(SJTU: Shanghai Jiao Tong University)H-Index: 30
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Hydrophilic–hydrophobic core–shell microparticles are highly appealing for a variety of industrial applications (foods, pharmaceutics, cosmetics, biomedicines, etc.) owing to their unique properties of moisture resistance and controlled release. However, the fabrication of such structured microparticles proves to be nontrivial due to the difficulty in assembling two materials of distinctly different hydrophilicities and hydrophobicities. This paper reports a facile method to fabricate hydrophili...
#1Wan-Ru Zhuang(CPU: China Pharmaceutical University)H-Index: 3
#2Yi Wang(CPU: China Pharmaceutical University)H-Index: 5
Last. Yu-Kyoung Oh(SNU: Seoul National University)H-Index: 64
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Abstract Noncovalent forces are of considerable importance in the formation of self-assembled drug-delivery systems. In addition to non-destructively linking the delivery vehicle and guest drug, they provide multiple advantages, including protecting the structure of the drug, maintaining its functional effects, and facilitating its release. In particular, π-π stacking interactions have potential application in a comprehensive range of biomedical and biotechnological fields. Because they do not a...
Last. Ho-Chiao Chuang(NTUT: National Taipei University of Technology)H-Index: 10
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Abstract The effect of electrodeposition conditions and their influence in electrochemical performance of copper/polyvinylpyrrolidone (Cu/PVP) composite were investigated and reported here. Initially, the electrochemical performance of the pure Cu coating and the fabricated Cu/PVP composites prepared under conventional method was scrutinized, and the results reveal the enhanced performance of Cu/PVP composite coating when compared to the pure Cu coatings. To improve the deposition quality of Cu/...
