Bi2S3 modified single crystalline rutile TiO2 nanorod array films for photoelectrochemical cathodic protection

Hu, Juan; Guan, Zi-Chao; Liang, Yan; Zhou, Jian-Zhang; Qing, Liu; Wang, Haipeng; Zhang, Hui; Du, Rong-Gui

doi:10.1016/j.corsci.2017.06.003

Cited by 61 publications

(24 citation statements)

References 53 publications

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“…Thus, how to overcome the above deficiencies of TiO 2 has become a widely studied topic. Many studies have been conducted on compounding TiO 2 with non-metal elements (F, N and S) [ 12 , 24 , 25 ], metal atoms (Fe, Co, Cu and Ce) [ 26 – 29 ] and some narrow bandgap nano-semiconductors (Ag 2 O, ZnSe, WO 3 , CdS, Ag 2 S, CdSe and Bi 2 S 3 ) [ 30 – 36 ] to improve the carrier separation and light utilization of TiO 2 .…”

Section: Introductionmentioning

confidence: 99%

Bi2Se3 Sensitized TiO2 Nanotube Films for Photogenerated Cathodic Protection of 304 Stainless Steel Under Visible Light

Wang

et al. 2018

Nanoscale Res Lett

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Titanium dioxide (TiO2) nanotube arrays coupled with a narrow gap semiconductor—bismuth selenide (Bi2Se3)—exhibited remarkable enhancement in the photocathodic protection property for 304 stainless steel under visible light. Bi2Se3/TiO2 nanocomposites were successfully synthesized using a simple two-step method, including an electrochemical anodization method for preparing pure TiO2 and a chemical bath deposition method for synthesizing Bi2Se3 nanoflowers. The morphology and structure of the composite films were studied by scanning electron microscopy, energy dispersion spectroscopy, X-ray photoelectron spectroscopy and X-ray diffraction. In addition, the influence of the Bi2Se3 content on the photoelectrochemical and photocathodic protection properties of the composite films was also studied. The photocurrent density of the Bi2Se3/TiO2 nanocomposites was significantly higher than that of pure TiO2 under visible light. The sensitizer Bi2Se3 enhanced the efficient separation of the photogenerated electron-hole pairs and the photocathodic protection properties of TiO2. Under visible light illumination, Bi2Se3/TiO2 nanocomposites synthesized by the chemical bath deposition method with Bi3+ (0.5 mmol/L) exhibited the optimal photogenerated cathodic protection performance for 304 stainless steel.

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Section: Introductionmentioning

confidence: 99%

Bi2Se3 Sensitized TiO2 Nanotube Films for Photogenerated Cathodic Protection of 304 Stainless Steel Under Visible Light

Wang

et al. 2018

Nanoscale Res Lett

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“…There is a strong interface electron fi eld between Bi 2 S 3 nanoparticles and TiO 2 nanotube arrays. The electric fi eld increases the separation of photogenerated carriers and then reinforces the photoelectrochemical properties (Hu et al, 2017; et al, 2017a; Guan et al, 2018b). The narrow bandgap doping mechanism is shown in Fig.8 (Li et al, 2017a;Yang et al, 2019).…”

Section: Sulfi De Modifi Ed Tiomentioning

confidence: 85%

“…In addition to the above measurements, X-ray photoelectron spectroscopy (XPS) is also a common technology to characterize TiO 2 fi lms. XPS uses indefi nite carbon to calibrate the binding energy (Yuan and Tsujikawa, 1995;Cui et al, 2015;Hu et al, 2017;Nan et al, 2019). By analyzing the binding a. reprinted with permission (Wei et al, 2016).…”

Section: Morphology and Structure Characterizationmentioning

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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“…Up to now, most studies with regards to photocathodic protection systems focus on TiO 2 and its composites prepared by anodic oxidation with other semiconductors for anticorrosion of stainless steel (SS) [2][3][4][5]. Due to the low electron mobility, the photocurrent density of a pure TiO 2 coupled with 304 SS was smaller than 50 µA/cm 2 , and the polarized OCP of the composite was approximately −450 mV.…”

Section: Introductionmentioning

confidence: 99%

Photocathodic Protection of Cobalt Doped ZnO Nanorod Arrays for 316 Stainless Steel and Q235 Carbon Steel in 3.5 wt.% NaCl Solution

Zhang

Chen

et al. 2019

Coatings

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In this work, cobalt-doped ZnO nanorod arrays with anticorrosion function were successfully prepared on fluorine-doped tin oxide (FTO) substrates by a simple aqueous solution method. The XRD patterns and the energy-dispersive X-ray spectroscopy (EDX) analysis indicate the doped Co 2+ were successfully incorporated into the ZnO crystal lattice. The photocurrent density and open circuit potential (OCP) results indicate the photocathodic protection performance for 316 stainless steel (316 SS) and Q235 carbon steel in a 3.5 wt.% NaCl solution under a Xe lamp with a power of 300 W was enhanced with the increase of cobalt concentration, and the photoanode with a 15% Co/Zn ratio had the optimal photocathodic protection effect. The mechanism of enhancement may be result from the narrowed band gap, the lower recombination rate of the photogenerated electron-hole pairs, the intermediate impurity level, and the split of the hypo-outer shell of cobalt ions.

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Bi2S3 modified single crystalline rutile TiO2 nanorod array films for photoelectrochemical cathodic protection

Cited by 61 publications

References 53 publications

Bi2Se3 Sensitized TiO2 Nanotube Films for Photogenerated Cathodic Protection of 304 Stainless Steel Under Visible Light

Bi2Se3 Sensitized TiO2 Nanotube Films for Photogenerated Cathodic Protection of 304 Stainless Steel Under Visible Light

Research progress of TiO2 photocathodic protection to metals in marine environment

Photocathodic Protection of Cobalt Doped ZnO Nanorod Arrays for 316 Stainless Steel and Q235 Carbon Steel in 3.5 wt.% NaCl Solution

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