Synthesis of N-deficient g-C3N4/epoxy composite coating for enhanced photocatalytic corrosion resistance and water purification

Guo, Feng; Shi, Yan; Shi, Weilong; Yang, Xinglin

doi:10.1007/s10853-023-08300-1

Cited by 18 publications

(1 citation statement)

References 100 publications

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“…van der Waals force holds the stacking layers (covalent C–N bonds) together. The qualities of functionalized coatings’ mechanical strength and chemical resistance may be considerably improved by adding GCN to a base epoxy matrix. − The effectiveness of GCN/epoxy-based coatings in preventing corrosion on metal specimens has recently been the subject of multiple reports. The epoxy matrix’s barrier and mechanical properties were enhanced by the addition of the GCN/MoOx nanocomposites.…”

Section: Introductionmentioning

confidence: 99%

Flame Retardant and Anticorrosion Behavior of Multifunctional Epoxy Nanocomposite Coatings Containing Graphitic Carbon Nitride/Silanized HfO₂ Nanofillers for the Protection of Steel Surface in Automobile Industry

Xavier,

S P,

et al. 2023

ACS Chem. Health Saf.

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With the help of (3-trimethoxysilylpropyl) diethylenetriamine (TMSPETA), hafnium(IV) oxide (HfO2), an inorganic nanofiller, was modified. The resulting TMSPETA/HfO2 was then encased in graphitic carbon nitride (GCN) and placed within a pure epoxy resin (EP). The protective behavior of mild steel coated with epoxy in the presence of various concentrations of GCN/TMSPETA-HfO2 was studied using electrochemical methods in seawater environment. It was found that the addition of 0.6 wt % of GCN/TMSPETA-HfO2 to the epoxy resin produced maximum resistance. Hence, the optimum concentration of 0.6 wt % was utilized for further investigation. The PHRR and THR values for the GCN/TMSPETA-HfO2 significantly decreased by 73% and 57%, respectively, as compared to pure EP, showing that the material is more flame retardant. The results of salt spray tests showed that the inclusion of GCN/TMSPETA-HfO2 in the epoxy matrix enhanced the corrosion protection performance and reduced water absorption. EIS measurements showed that the epoxy-GCN/TMSPETA-HfO2 had increased coating resistance of 6.42E9 Ω·cm2 even after 320 h of exposure to seawater. According to SECM investigations, the coated steel with EP-GCN/TMSPETA-HfO2 nanocomposite has the lowest ferrous ion dissipation (1.0 I/nA). FE-SEM/EDX investigation revealed that silanized GCN was enhanced in the degradation products, resulting in a durable inert nanolayered covering. The newly created EP-GCN/TMSPETA-HfO2 coating was incredibly water-resistant, with a WCA of 165°. The TMSPETA-HfO2 wrapped in GCN has demonstrated strong adhesion and hardness in the epoxy substrate as well as good mechanical properties. An increased adhesive strength (19.1 MPa) was achieved for mild steel coated with EP-GCN/TMSPETA-HfO2 prior to being immersed in seawater. As a result, the coating has greater adhesive strength and can hold up even after a prolonged immersion. In light of this, the EP-GCN/TMSPETA-HfO2 nanocomposite may be used as a coating component in the automotive industry.

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Section: Introductionmentioning

confidence: 99%

Flame Retardant and Anticorrosion Behavior of Multifunctional Epoxy Nanocomposite Coatings Containing Graphitic Carbon Nitride/Silanized HfO₂ Nanofillers for the Protection of Steel Surface in Automobile Industry

Xavier,

S P,

et al. 2023

ACS Chem. Health Saf.

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Constructing S-scheme charge separation in cobalt phthalocyanine/oxygen-doped g-C3N4 heterojunction with enhanced photothermal-assisted photocatalytic H2 evolution

Shi,

Xu,

Shi

et al. 2023

Rare Met.

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Construction of S-scheme heterojunction catalytic nanoreactor for boosted photothermal-assisted photocatalytic H2 production

Lu,

Sun,

Chen

et al. 2024

Applied Surface Science

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Synthesis of N-deficient g-C3N4/epoxy composite coating for enhanced photocatalytic corrosion resistance and water purification

Cited by 18 publications

References 100 publications

Flame Retardant and Anticorrosion Behavior of Multifunctional Epoxy Nanocomposite Coatings Containing Graphitic Carbon Nitride/Silanized HfO₂ Nanofillers for the Protection of Steel Surface in Automobile Industry

Flame Retardant and Anticorrosion Behavior of Multifunctional Epoxy Nanocomposite Coatings Containing Graphitic Carbon Nitride/Silanized HfO₂ Nanofillers for the Protection of Steel Surface in Automobile Industry

Constructing S-scheme charge separation in cobalt phthalocyanine/oxygen-doped g-C3N4 heterojunction with enhanced photothermal-assisted photocatalytic H2 evolution

Construction of S-scheme heterojunction catalytic nanoreactor for boosted photothermal-assisted photocatalytic H2 production

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Synthesis of N-deficient g-C3N4/epoxy composite coating for enhanced photocatalytic corrosion resistance and water purification

Cited by 18 publications

References 100 publications

Flame Retardant and Anticorrosion Behavior of Multifunctional Epoxy Nanocomposite Coatings Containing Graphitic Carbon Nitride/Silanized HfO2 Nanofillers for the Protection of Steel Surface in Automobile Industry

Flame Retardant and Anticorrosion Behavior of Multifunctional Epoxy Nanocomposite Coatings Containing Graphitic Carbon Nitride/Silanized HfO2 Nanofillers for the Protection of Steel Surface in Automobile Industry

Constructing S-scheme charge separation in cobalt phthalocyanine/oxygen-doped g-C3N4 heterojunction with enhanced photothermal-assisted photocatalytic H2 evolution

Construction of S-scheme heterojunction catalytic nanoreactor for boosted photothermal-assisted photocatalytic H2 production

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Product

Resources

About

Flame Retardant and Anticorrosion Behavior of Multifunctional Epoxy Nanocomposite Coatings Containing Graphitic Carbon Nitride/Silanized HfO₂ Nanofillers for the Protection of Steel Surface in Automobile Industry

Flame Retardant and Anticorrosion Behavior of Multifunctional Epoxy Nanocomposite Coatings Containing Graphitic Carbon Nitride/Silanized HfO₂ Nanofillers for the Protection of Steel Surface in Automobile Industry