Fabrication of heterostructured β-Bi2O3-TiO2 nanotube array composite film for photoelectrochemical cathodic protection applications

Guan, Zi-Chao; Wang, Haipeng; Wang, Xia; Hu, Juan; Du, Rong-Gui

doi:10.1016/j.corsci.2018.02.048

Cited by 84 publications

(29 citation statements)

References 62 publications

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“…EIS can provide valuable electrochemical information of metal/solution interface, so it is used to evaluable the effect of photochemical cathodic protection on the prepared films 29 . Figure 9 a shows the Nyquist diagram of 304SS in 3.5 wt% NaCl solution without coupling and coupling FeS 2 /TiO 2 nano film photoanode, and each curve has only one capacitance arc.…”

Section: Resultsmentioning

confidence: 99%

Preparation of FeS2/TiO2 nanocomposite films and study on the performance of photoelectrochemistry cathodic protection

Wang

Liu

et al. 2021

Sci Rep

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FeS2/TiO2 nanotube array composite films with clean, high efficiency, low cost and low consumption were prepared by electrochemical anodization and hydrothermal methods. The modification of FeS2 nanoparticles on the surface of TiO2 nanotube array film not only broadens the light absorption range of TiO2, but also improves the utilization ratio of visible light and the separation rate of photogenerated electron–hole pairs, which greatly improves the photoelectrochemical cathodic protection performance of TiO2 for 304 stainless steel (304SS). Under visible light irradiation, the open circuit potential of 304SS coupled with the FeS2/TiO2 nanocomposite films decreased from − 170 to − 700 mV, and the electrode potential can still maintained at − 400 mV after the light was turned off. Compared with pure TiO2 nanotube array film, FeS2/TiO2 nanocomposite film has better photoelectrochemical cathodic protection effect on 304SS in 3.5 wt% NaCl corrosion medium.

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Section: Resultsmentioning

confidence: 99%

Preparation of FeS2/TiO2 nanocomposite films and study on the performance of photoelectrochemistry cathodic protection

Wang

Liu

et al. 2021

Sci Rep

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“…Therefore, β-Bi 2 O 3 is a suitable candidate for TiO 2 nanotube modifi cation. More importantly, if p-Bi 2 O 3 and n-TiO 2 are integrated into composite materials, a p-n heterojunction will be formed at the interface, which can signifi cantly improve the separation effi ciency of photogenerated electrons and holes (Guan et al, 2018a). The slow discharging of 304SS and the potential variation of 403SS are shown in Fig.11.…”

Section: Metal-oxides/tiomentioning

confidence: 99%

Research progress of TiO2 photocathodic protection to metals in marine environment

Wang

Nan

et al. 2020

J. Ocean. Limnol.

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Corrosion protection has become an important issue as the amount of infrastructure construction in marine environment increased. Photocathodic protection is a promising method to reduce the corrosion of metals, and titanium dioxide (TiO 2) is the most widely used photoanode. This review summarizes the progress in TiO 2 photogenerated protection in recent years. Diff erent types of semiconductors, including sulfi des, metals, metal oxides, polymers, and other materials, are used to design and modify TiO 2. The strategy to dramatically improve the effi ciency of photoactivity is proposed, and the mechanism is investigated in detail. Characterization methods are also introduced, including morphology testing, light absorption, photoelectrochemistry, and protected metal observation. This review aims to provide a comprehensive overview of TiO 2 development and guide photocathodic protection.

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“…More specifically, constructing heterojunctions by combining with other materials has proven to be a valid method for improving the photoelectrochemical properties of TiO 2 . The materials used for this strategy include metal oxides (In 2 O 3 [22], MoO 3 [23], Bi 2 O 3 [24], WO 3 [25,26], RuO 2 [27,28]), metal sulfides and selenides (Ag 2 S [29], Bi 2 S 3 [30], Ag 2 Se [31]), graphene [32][33][34], Co(OH) 2 [35], and ZnFeAl-layered double hydroxides [36].…”

Section: Introductionmentioning

confidence: 99%

Preparation of SnIn4S8/TiO2 Nanotube Photoanode and Its Photocathodic Protection for Q235 Carbon Steel Under Visible Light

Song

Cui

et al. 2021

Nanoscale Res Lett

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TiO2 is an attractive semiconductor suitable for photocathodic protection, but its weak absorption of visible light and low quantum yield limit its usage. Here, a new heterostructured SnIn4S8 nanosheet/TiO2 nanotube photoanode was prepared and its photocathodic protection performance was analyzed. SnIn4S8 nanosheets were uniformly deposited on the surface of the TiO2 nanotube via a solvothermal treatment. The SnIn4S8/TiO2 composite exhibited better photocathodic protection performance compared with pure TiO2 nanotubes, owing to its good visible-light response and photogenerated carrier separation efficiency. Moreover, the composite exhibited a maximum photocurrent density of 100 μA cm−2 for a 6 h solvothermal reaction under visible light irradiation. The negative shift of the photoinduced potential of Q235 carbon steel connected to the composite could reach 0.45 V versus SCE. Therefore, the SnIn4S8/TiO2 composite can offer efficient photocathodic protection for Q235 carbon steel against corrosion in 3.5 wt% NaCl solution. This work provides a new approach for the development of high-efficient photoanode materials for the photocathodic protection of metals.

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Fabrication of heterostructured β-Bi2O3-TiO2 nanotube array composite film for photoelectrochemical cathodic protection applications

Cited by 84 publications

References 62 publications

Preparation of FeS2/TiO2 nanocomposite films and study on the performance of photoelectrochemistry cathodic protection

Preparation of FeS2/TiO2 nanocomposite films and study on the performance of photoelectrochemistry cathodic protection

Research progress of TiO2 photocathodic protection to metals in marine environment

Preparation of SnIn4S8/TiO2 Nanotube Photoanode and Its Photocathodic Protection for Q235 Carbon Steel Under Visible Light

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