Enhanced electrochemical and photocatalytic performance achieved through dual incorporation of SnO2 and WO3 nanoparticles into LDH layer fabricated on PEO-coated AZ31 Mg alloy

Journal of Magnesium and Alloys, Journal Year: 2024, Volume and Issue: 12(5), P. 1880 - 1898

Published: May 1, 2024

This study explores the potential of LDH flakes decorated with metallic oxide nanoparticles to function as both anti-corrosion barriers against chloride anions and heterogeneous photocatalysts for tetracycline degradation under visible light. The process involves modifying primarily MgO-based inorganic porous film by growing a MgFe film, followed individual dual incorporation SnO2 WO3 nanoparticles. these into matrix leads synergistic interactions, effectively sealing pre-existing defects within facilitating in-situ formation catalytic sites through oxidation induction surface oxygen vacancy defects, which synergistically contribute enhancement electrochemical photocatalytic activities. enhanced stability is reflected in significant reduction corrosion current density 4 orders magnitude compared unmodified film. Additionally, demonstrates sustained functionality, achieving (95.5 %) two hours. presents novel approach, highlighting effectiveness LDHs metal oxides an anti-corrosive agent photocatalyst, promising implications environmental remediation wastewater purification.

Language: Английский

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Modulating chelation with pH sensitivity for controlled structural defects and enhanced electrochemical and photocatalytic activities of LDH films

Journal of Materials Chemistry A, Journal Year: 2024, Volume and Issue: 12(6), P. 3411 - 3433

Published: Jan. 1, 2024

Enhancing LDH film performance through pH-responsive chelation. A pH-sensitive chelation approach was employed to tailor MgAl-LDH, achieving improved electrochemical stability and enhanced photocatalytic efficiency.

Language: Английский

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Surface growth of novel MOFs on AZ31 Mg alloy coated via plasma electrolytic oxidation for enhanced corrosion protection and photocatalytic performance

Journal of Magnesium and Alloys, Journal Year: 2024, Volume and Issue: 12(6), P. 2413 - 2432

Published: June 1, 2024

In the pursuit of multifunctional coatings, controlled growth materials on stationary platforms holds paramount importance for achieving superior corrosion protection and optimal photocatalytic performance. This study introduces a cutting-edge approach, intertwining bifunctional metal-organic frameworks (MOFs) seamlessly into defective MgO layers produced by anodic oxidation AZ31 alloy. Key metallic oxides Zn, Sn, V take center stage as sources MOF formation, complemented organic prowess l-Tryptophan an α-amino acid linker. Leveraging electronic structure reacting with tryptophan molecules, morphologies distinct characteristics are induced surface layer, enabling precise modulation defects. The hybrid composite demonstrates adaptive microstructure in diverse aqueous environments, offering dual functionality electrochemical stability visible light activity crystal violet degradation. Among samples, SnOF complex exhibited remarkable low current density 7.50 × 10−10 A.cm−2, along 94.56 % degradation efficiency after 90 min under exposure. VOF complex, similar conditions, demonstrated exceptional performance higher 97.79 excellent characterized 3.26 10−9 A.cm−2. Additionally, Density Functional Theory (DFT) computations shed basic bonding patterns between MOFs inorganic components, providing understanding their activities.

Language: Английский

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Maximizing the potential applications of plasma electrolytic oxidation coatings produced on Mg-based alloys in anti-corrosion, antibacterial, and photocatalytic targeting through harnessing the LDH/PEO dual structure

Journal of Magnesium and Alloys, Journal Year: 2024, Volume and Issue: 12(7), P. 2674 - 2694

Published: July 1, 2024

There is an increasing interest in the development of Mg alloys, both for industrial and biomedical applications, due to their favorable characteristics such as being lightweight robust. However, inadequate corrosion resistance lack antibacterial properties pose significant challenges necessitating implementation advanced coating engineering techniques. Plasma electrolytic oxidation (PEO) has emerged a preferred technique because its distinctive successful surface modification results. there continuous need further enhancements optimize performance functionalities protective treatments. The integration layered double hydroxide (LDH) into PEO coatings on alloys presents promising approach bolstering properties. This thorough review delves latest developments integrating LDH corrosion-related purposes. It particularly emphasizes improvements resistance, effectiveness, photocatalytic resulting from incorporation coatings. two key mechanisms that enhance containing are anion exchangeability structure pore-sealing effect. Moreover, activity with stemmed release agents stored within structure, alterations pH levels, photothermal conversion property. Furthermore, by incorporating coatings, new opportunities emerge tackling environmental issues through boosted properties, especially realm pollutant degradation.

Language: Английский

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Enhanced photocatalytic reduction of p-nitrophenol by polyvinylpyrrolidone-modified MOF/porous MgO composite heterostructures

Composites Part B Engineering, Journal Year: 2024, Volume and Issue: 284, P. 111710 - 111710

Published: July 9, 2024

Language: Английский

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Enhancing wear and corrosion resistance of magnesium alloys through in-situ Al2O3 doping for plasma electrolytic oxidation coating

Materials Today Communications, Journal Year: 2024, Volume and Issue: 38, P. 108234 - 108234

Published: Jan. 28, 2024

Language: Английский

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Recent advances in flat sheet mixed matrix membrane modified by Mg-based layered double hydroxides (LDHs) for salt and organic compound separations

Journal of Magnesium and Alloys, Journal Year: 2024, Volume and Issue: 12(6), P. 2182 - 2200

Published: June 1, 2024

Magnesium (Mg) is a widely used and attractive metal, known for its unique physical chemical properties, it has been employed in the manufacture of many practical materials. Layered Double Hydroxides (LDHs), particularly Mg-based LDHs, rank among most prevalent two-dimensional materials utilized separation processes, which include adsorption, extraction, membrane technology. The high popularity LDHs applications can be attributed to their such as excellent hydrophilicity, surface area, ion exchangeability, adjustable interlayer space. Currently, polymer membranes play pivotal role semi-industrial industrial processes. Consequently, development mitigation limitations have emerged compelling topics researchers. Several methods exist enhance performance anti-fouling properties membranes. Among these, incorporating additives into matrix stands out cost-effective, straightforward, readily available, efficient approach. use either combination with other or standalone additive matrix, represents promising strategy bolster efficacy flat sheet mixed This review highlights high-potential designed refine wastewater treatment brackish water desalination.

Language: Английский

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Synergistic chelating agents for in-situ synthesis of Mg-Al LDH films on PEO treated Mg alloy

Journal of Magnesium and Alloys, Journal Year: 2024, Volume and Issue: unknown

Published: June 1, 2024

In-situ growth of layered double hydroxide (LDH) has been considered a feasible method to further improve the corrosion protection PEO coated Mg alloys, but process is basically carried out in an autoclave. In this study, LDH was in-situ synthesized on treated AM50 by hydrothermal treatment at ambient pressure presence chelating agents. Results indicated that synergistic effect sulfosalicylic acid (SSA) and ethylenediaminetetraacetic tetrasodium salt (EDTA) agents appropriate for Mg-Al formation due sufficient quantity highly stable Al complexes bath. An time also revealed work, which can efficiently seal pores defects coating with uniform film. As result, improved dramatically. The prolonged detrimental integrity layers. influence processes supported thermodynamic calculation equilibrium composition, mechanism film discussed depth.

Language: Английский

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Progress and prospects of Mg-based amorphous alloys in azo dye wastewater treatment

Journal of Magnesium and Alloys, Journal Year: 2024, Volume and Issue: 12(3), P. 873 - 889

Published: March 1, 2024

Mg-based amorphous alloys exhibit efficient catalytic performance and excellent biocompatibility with a promising application probability, specifically in the field of azo dye wastewater degradation. However, problems like difficulty preparation poor cycling stability need to be solved. At present, applied degradation are available powder ribbon. The alloy fabricated by ball milling has high specific surface area, its reactivity is thousands times better than that gas atomized powder. But development limited due energy consumption, difficult costly process recycling. single roller melt-spinning method new manufacturing Compared powder, area ribbon relatively lower, therefore, it necessary carry out modification enhance it. Dealloying way can form pore structure on alloys, increasing providing more reactive sites, which all contribute performance. Exploring optimal conditions for adjusting composition, choosing suitable modification, reducing cost, expanding pH range will advance steps put industrial environments into practice.

Language: Английский

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Advancing the eradication of harmful dyes through stereolithography-produced 3D floating photocatalysis: Exploiting the synergistic potential of graphene/MnO2/Fe3O4 hybrid nanomaterials

Surfaces and Interfaces, Journal Year: 2024, Volume and Issue: 48, P. 104302 - 104302

Published: April 15, 2024

Language: Английский

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