Review of TiO₂-Based Heterojunction Coatings in Photocathodic Protection

ACS Applied Nano Materials, Journal Year: 2024, Volume and Issue: 7(8), P. 8464 - 8488

Published: April 12, 2024

Photocathodic protection coating is an emerging anticorrosion technology that combines the protective characteristics of and cathodic protection. TiO2 stable easy to prepare; however, it suffers from a low sunlight utilization rate photoelectric conversion efficiency. The construction TiO2-based heterojunction coatings provides effective solution these challenges. This work summarizes synthesis methods coatings, explores charge-transfer mechanisms associated with various types (e.g., type II heterojunction, p–n junction, Schottky Z-scheme heterojunction), reviews characterization used for analysis. Finally, application prospects future research directions are proposed. study will help researchers understand fabrication process in photocathodic

Language: Английский

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In-situ construction of lamellar stacked zinc molybdate-zinc/aluminium layered double hydroxides heterojunction material with synergistic corrosion protection

Progress in Organic Coatings, Journal Year: 2024, Volume and Issue: 189, P. 108294 - 108294

Published: Feb. 2, 2024

Language: Английский

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Indium oxide-based Z-scheme hollow core–shell heterostructure with rich sulfur-vacancy for highly efficient light-driven splitting of water to produce clean energy

Journal of Colloid and Interface Science, Journal Year: 2024, Volume and Issue: 672, P. 401 - 414

Published: May 17, 2024

Language: Английский

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Design of a One-Dimensional Zn3In2S6/NiFe2O4 Composite Material and Its Photocathodic Protection Mechanism Against Corrosion

Buildings, Journal Year: 2025, Volume and Issue: 15(6), P. 958 - 958

Published: March 18, 2025

Z-scheme Zn3In2S6/NiFe2O4 nanocomposites were prepared by electrospinning and hydrothermal methods, their photocathodic protection performance was studied on 304 SS Q235 CS in NaCl solution (3.5 wt.%). The two-dimensional Zn3In2S6 loaded the one-dimensional NiFe2O4 resulted faster electron migration enhanced light absorption capability. Moreover, it had been observed through electrochemical testing that assembly of heterojunctions improves efficacy protection. Following illumination, self-corrosion potentials coupled with decreased 1040 mV 560 mV, photoinduced current densities 1.2 times 3.9 greater than value Zn3In2S6. Furthermore, mechanism for systematically discussed. XPS ESR analysis indicated composites follow path retain stronger reduction oxidation capacity Zn3In2S6/NiFe2O4. Therefore, heterostructures are responsible realization cathodic carbon steel.

Language: Английский

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A photocathodic corrosion protection performance of aluminium frames in solar panels using TiO2/C3N4 heterostructure

Journal of Alloys and Compounds, Journal Year: 2025, Volume and Issue: unknown, P. 180707 - 180707

Published: May 1, 2025

Language: Английский

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High-efficiency photocathodic protection performance of novel TiO2/ZnCdS heterojunction films for Q235 carbon steel

Materials Today Communications, Journal Year: 2024, Volume and Issue: 40, P. 110125 - 110125

Published: Aug. 1, 2024

Language: Английский

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Enhanced photocathodic protection performance of TiO2/SnO2/CdIn2S4 composites for 304 stainless steel in marine environments

Journal of Alloys and Compounds, Journal Year: 2024, Volume and Issue: 1009, P. 176963 - 176963

Published: Oct. 11, 2024

Language: Английский

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Fabrication of multi-layered TiO2/CdS@ZnS nanocomposite film for highly stable and efficient photocathodic protection of carbon steel

Materials Today Communications, Journal Year: 2024, Volume and Issue: 42, P. 111134 - 111134

Published: Nov. 28, 2024

Language: Английский

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Core–Shell Spheroid Structure TiO2/CdS Composites with Enhanced Photocathodic Protection Performance

Materials, Journal Year: 2023, Volume and Issue: 16(11), P. 3927 - 3927

Published: May 24, 2023

In order to improve the conversion and transmission efficiency of photoelectron, core-shell spheroid structure titanium dioxide/cadmium sulfide (TiO2/CdS) composites were synthesized as epoxy-based coating fillers using a simple hydrothermal method. The electrochemical performance photocathodic protection for composite was analyzed by it on Q235 carbon steel surface. results show that possesses significant photoelectrochemical property with photocurrent density 0.0421 A/cm2 corrosion potential -0.724 V. Importantly, modified can extend absorption in visible region effectively separate photoelectron hole pairs synergistically, because CdS be regarded sensitizer introduced into TiO2 form heterojunction system. mechanism is attributed energy difference between Fermi excitation level, which leads system obtaining higher electric field strength at heterostructure interface, thus driving electrons directly surface (Q235 CS). Moreover, CS investigated this paper.

Language: Английский

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Photogenerated cathodic protection properties of Fe2O3 nanotubes prepared by anodic oxidation

International Journal of Electrochemical Science, Journal Year: 2023, Volume and Issue: 18(9), P. 100282 - 100282

Published: July 8, 2023

Photogenerated cathodic protection as a new type of corrosion method has evoked great attention. The n-type semiconductor is normally selected the photogenerated composite. α-Fe2O3 typical semiconductor, which easy to obtain and environmental-friendly. However, it prepared on FTO substrate could hardly protect carbon steel. In this study, nanotubes are fabricated steel by anodic oxidation at different potentials. corresponding surface morphologies, compositions, optical absorption properties characterized with SEM, Raman spectroscopy, UV-Visible spectrometer. photoelectrochemical tests show that can supply maximum potential drop obtained for sample under 50 V 30 ℃ 450 s oxidation. It revealed fine structure benefit capture light enhances performance

Language: Английский

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