Microbiologically influenced corrosion mechanism of 304L stainless steel in treated urban wastewater and protective effect of silane-TiO2 coating

Ziadi, Islem; Alves, Marta M.; Taryba, Maryna; El-Bassi, Leila; Hassairi, H.; Bousselmi, Latifa; Montemor, M.F.; Akrout, Hanène

doi:10.1016/j.bioelechem.2019.107413

Cited by 32 publications

(12 citation statements)

References 47 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…The interest in photocathodic protection is continuously growing due to its low cost, nontoxic and environmentally friendly application [52,53]. Although this paper is not directly concerned with this effect, it analyzes the electrochemical protection provided by these combined electrospun fibers with multilayer LbL structure coatings to a standard material employed in pipelines, pumps and tanks (AISI 304 stainless steel) [54] as a preliminary step for further research on their photocathodic protection ability.…”

Section: Introductionmentioning

confidence: 99%

Design of Photocatalytic Functional Coatings Based on the Immobilization of Metal Oxide Particles by the Combination of Electrospinning and Layer-by-Layer Deposition Techniques

et al. 2022

View full text Add to dashboard Cite

This work reports the design and characterization of functional photocatalytic coatings based on the combination of two different deposition techniques. In a first step, a poly(acrylic acid) + β-Cyclodextrin (denoted as PAA+ β-CD) electrospun fiber mat was deposited by using the electrospinning technique followed by a thermal treatment in order to provide an enhancement in the resultant adhesion and mechanical resistance. In a second step, a layer-by-layer (LbL) assembly process was performed in order to immobilize the metal oxide particles onto the previously electrospun fiber mat. In this context, titanium dioxide (TiO2) was used as the main photocatalytic element, acting as the cationic element in the multilayer LbL structure. In addition, two different metal oxides, such as tungsten oxide (WO3) and iron oxide (Fe2O3), were added into PAA anionic polyelectrolyte solution with the objective of optimizing the photocatalytic efficiency of the coating. All of the coatings were characterized by scanning electron microscopy (SEM) and atomic force microscopy (AFM) images, showing an increase in the original fiber diameter and a decrease in roughness of the mats because of the LbL second step. The variation in the wettability properties from a superhydrophilic surface to a less wettable surface as a function of the incorporation of the metal oxides was also observed by means of water contact angle (WCA) measurements. With the aim of analyzing the photocatalytic efficiency of the samples, degradation of methyl blue (MB) azo-dye was studied, showing an almost complete discoloration of the dye in the irradiated area. This study reports a novel combination method of two deposition techniques in order to obtain a functional, homogeneous and efficient photocatalytic coating.

show abstract

Section: Introductionmentioning

confidence: 99%

Design of Photocatalytic Functional Coatings Based on the Immobilization of Metal Oxide Particles by the Combination of Electrospinning and Layer-by-Layer Deposition Techniques

et al. 2022

View full text Add to dashboard Cite

show abstract

“…Then, the PEP and EIS tests of the annealed RS were performed in the SCS after 1, 24, 360 and 720 h immersion time. After 96 h of immersion, the results showed that the uncoated RS started to oxidatize and reduce the non-uniformity of the surface which can be assumed that the localized corrosion [ 65 ] occurred in the form of irregular and deep pitting. It can be concluded that this corrosion was primarily induced by the active–passive behaviour of iron due to the pH environment, regeneration the hydrogen ion, lack of protective black oxides such as Fe 3 O 4 and chromium elements in the RS (cf.…”

Section: Resultsmentioning

confidence: 99%

Electrochemical and Structural Property of TiSiNb TFSOC on Affordable Interconnects in Proton Exchange Membrane Fuel Cell Applications

Vallant

Ladenstein

et al. 2020

Nanomaterials

View full text Add to dashboard Cite

High cost and low electrochemical stability of the interconnection in Proton Exchange Membrane Fuel Cell (PEMFC) in the presence of H2SO4 are one of the main issues hindering the commercialization of these devices. This manuscript presents the utilization of cost-effective steel in an attempt to minimize the PEMFC interconnection costs with a thin-film solid oxide coating (TFSOC) providing sufficient corrosion resistance for efficient long-term operation. Novel Ti0.50-y/2Si0.50-y/2Nby1,2O2 as TFSOC was deposited on the C45E steel as a metal interconnect utilizing a sol–gel process at various annealing temperatures. The analysis of the phase and surface morphology demonstrates that lower annealing temperatures developed nanometric crystallite size of 68 nm, more uniform structure and higher corrosion resistance. Under standard test conditions, the TFSOC demonstrated high polarization resistance (1.3 kΩ cm2) even after 720 hours (h). Electrical conductivity of the TFSOC as low as 1.4 × 10−2 (Ω m)−1 and activation energy of 0.20 eV were achieved, which helps to maintain the PEMFC output power.

show abstract

“…Stainless steel including duplex stainless steel type is reported to be susceptible to MIC and pitting [15][16][17][18][19][20][21]. Due to the difference in surface properties and alloying elements, the adhesion of bacteria to the surfaces might vary, thus might result in differences in corrosion behaviour of the materials.…”

Section: Introductionmentioning

confidence: 99%

A study of bacteria adhesion and microbial corrosion on different stainless steels in environment containingDesulfovibrio vulgaris

et al. 2021

View full text Add to dashboard Cite

Stainless steel is an important material used in many applications due to its mechanical strength and corrosion-resistant properties. The high corrosion resistance of stainless steel is provided by the passive film. Different stainless steels have different alloy elements and surface properties which could have a significant influence on bacterial attachment to the surface and thus might result in different microbial corrosion behaviours. In this study, the effect of adhesion of sulfate-reducing bacteria (SRB) on corrosion behaviour in artificial seawater on different stainless steels was investigated. Stainless steel materials used were SS 410, SS 420, SS 316 and DSS 2205 and pure chromium. The contact angle was measured to study the effect of surface properties of materials. Adhesion was measured by counting cells attached to the surface of materials. The corrosion behaviour of the materials was measured by electrochemical testing including measuring open circuit potential, electrochemical impedance spectroscopy and potentiodynamic behaviour. The long-term corrosion behaviour of each material was studied after six months of exposure by measuring weight loss and surface analysis with scanning electron microscope with energy-dispersive X-ray analysis. Hydrophobicity had a strong effect on bacterial attachment. Alloying elements e.g. nickel also had shown its ability to attract bacteria to adhere on the surface. However, the corrosion rate of different materials is determined not only by bacterial attachment but also by the stability of the passive film which is determined by the alloying elements, such as Mo and Cr. Chromium showed high resistance to corrosion, possibly due to toxicity on bacterial attachment. The nature of bacterial attachment and corrosion behaviour of the materials are discussed.

show abstract

Microbiologically influenced corrosion mechanism of 304L stainless steel in treated urban wastewater and protective effect of silane-TiO2 coating

Cited by 32 publications

References 47 publications

Design of Photocatalytic Functional Coatings Based on the Immobilization of Metal Oxide Particles by the Combination of Electrospinning and Layer-by-Layer Deposition Techniques

Design of Photocatalytic Functional Coatings Based on the Immobilization of Metal Oxide Particles by the Combination of Electrospinning and Layer-by-Layer Deposition Techniques

Electrochemical and Structural Property of TiSiNb TFSOC on Affordable Interconnects in Proton Exchange Membrane Fuel Cell Applications

A study of bacteria adhesion and microbial corrosion on different stainless steels in environment containingDesulfovibrio vulgaris

Contact Info

Product

Resources

About