KaydedilenlerDerginizi ekleyin

Dergiler / Turkish Journal of Chemistry / 2020 / Cilt: 44 - Sayı: 6

Blue $TiO_2$ nanotube arrays as semimetallic materials with enhanced photoelectrochemical activity towards water splitting

Umut AYDEMİR
Naeimeh Sadat PEIGHAMBARDOUST
Sayfa
1642–1654
Yayın Tarihi
2022-11-03
DOI
—
🏛️Bu makalenin bibliyografik verileri ve tam metin bağlantısı DergiPark üzerinden sağlanmıştır.
DergiPark Kaydı ↗
✨

Yapay Zeka Hızlı Bakış & Çıkarımlar

AI Insight
⚡ TL;DR(1 Cümlede Hızlı Çıkarım)

Oxygen vacancies formed through the cathodic polarization decreased charge recombination and enhanced charge transfer rate; therefore, a high photoelectrochemical activity under visible light irradiation could be achieved.

📌 3 Maddede Bu Makale

🎯
Amaç & Hipotez:In the past years there has been a great interest in self-doped $TiO_2$nanotubes (blue $TiO_2$ nanotubes) compared to undoped ones owing to their high carrier density and conductivity.
📊
Temel Bulgular & Veri:In this study, blue $TiO_2$ nanotubes are investigated as photoanode materials for photoelectrochemical water splitting.
💡
Sonuç & Katkı:Oxygen vacancies formed through the cathodic polarization decreased charge recombination and enhanced charge transfer rate; therefore, a high photoelectrochemical activity under visible light irradiation could be achieved.
🔬Tür:Modelleme & Sayısal Simülasyon
📍Kapsam:Genişletilmiş Akademik Örneklem
⚙️Değişkenler:Alan Parametreleri

Abstract

In the past years there has been a great interest in self-doped $TiO_2$nanotubes (blue $TiO_2$ nanotubes) compared to undoped ones owing to their high carrier density and conductivity. In this study, blue $TiO_2$ nanotubes are investigated as photoanode materials for photoelectrochemical water splitting. Blue $TiO_2$ nanotubes were fabricated with enhanced photoresponse behavior through electrochemical cathodic polarization on undoped and annealed $TiO_2$ nanotubes. The annealing temperature of undoped $TiO_2$ nanotubes was tuned before cathodic polarization, revealing that annealing at 500 °C improved the photoresponse of the nanotubes significantly. Further optimization of the blue $TiO_2$ nanotubes was achieved by adjusting the cathodic polarization parameters. Blue $TiO_2$ nanotubes obtained at the potential of –1.4 V (vs. SCE) with a duration of 10 min exhibited twice more photocurrent response (0.39 mA cm–2) compared to the undoped $TiO_2$ nanotube arrays (0.19 mA cm–2). Oxygen vacancies formed through the cathodic polarization decreased charge recombination and enhanced charge transfer rate; therefore, a high photoelectrochemical activity under visible light irradiation could be achieved.

🔖

Bu Makaleye Atıf Yap

AYDEMİR, U., PEIGHAMBARDOUST, N. S. (2022). Blue $TiO_2$ nanotube arrays as semimetallic materials with enhanced photoelectrochemical activity towards water splitting. Turkish Journal of Chemistry, Cilt: 44 - Sayı: 6, 1642–1654. https://ajindex.com/articles/601588

📄 Tam Metin PDF Okuyucu

📄

PDF görüntüleyici hazırlanıyor...

Kaynakça (13)

  1. Abe R. Recent progress on photocatalytic and photoelectrochemical water splitting under visible light irradiation. Journal of Photochemistry and Photobiology C Photochemistry Reviews 2010
  2. 11 (4): 179-209. doi: 10.1016/j.jphotochemrev.2011.02.003 2. Alfaifi BY, Ullah H, Alfaifi S, Tahir AA, Mallick TK. Photoelectrochemical solar water splitting: from basic principles to advanced devices. Veruscript Functional Nanomaterials 2018
  3. BDJOC3. doi: 10.22261/fnan.bdjoc3 3. Wang X, Maeda K, Thomas A, Takanabe K, Xin G et al. A metal-free polymeric photocatalyst for hydrogen production from water under visible light. Nature Materials 2009
  4. 8 (1): 76-80. doi: 10.1038/nmat2317 4. Maeda K, Domen K. Photocatalytic water splitting: recent progress and future challenges. The Journal of Physical Chemistry Letters 2010
  5. 1 (18): 2655-2661. doi: 10.1021/jz1007966 5. Tong H, Ouyang S, Bi Y, Umezawa N, Oshikiri M et al. Nano-photocatalytic materials: possibilities and challenges. Advanced Materials 2012
  6. 24 (2): 229-251. doi: 10.1002/adma.201102752 6. Zhang H, Chen G, Bahnemann DW. Photoelectrocatalytic materials for environmental applications. Journal of Materials Chemistry 2009
  7. 19 (29): 5089-5121. doi: 10.1039/b821991e 7. Zhao X, Guo L, Zhang B, Liu H, Qu J. Photoelectrocatalytic oxidation of CuII-EDTA at the $TiO_2$ electrode and simultaneous recovery of CuII by electrodeposition. Environmental Science & Technology 2013
  8. 47 (9): 4480-4488. doi: 10.1021/es3046982 8. Liu M, De Leon Snapp N, Park H. Water photolysis with a cross-linked titanium dioxide nanowire anode. Chemical Science 2011
  9. 2 (1): 80-87. doi: 10.1039/c0sc00321b 9. Hwang YJ, Boukai A, Yang P. High density n-Si/ n-$TiO_2$ core/shell nanowire arrays with enhanced. Nano Letters 2009
  10. 9 (100): 410-415. doi: 10.1021/nl8032763 10. Lin Y, Zhou S, Liu X, Sheehan S, Wang D. $TiO_2 /TiSi_2$ heterostructures for high-efficiency photoelectrochemical $H_2O$ splitting. Journal of the American Chemical Society 2009
  11. 131 (8): 2772-2773. doi: 10.1021/ja808426h 11. Habisreutinger SN, Schmidt-Mende L, Stolarczyk JK. Photocatalytic reduction of CO2 on $TiO_2$ and other semiconductors. Angewandte Chemie International Edition 2013
  12. 52 (29): 7372-7408. doi: 10.1002/anie.201207199 12. Wang YQ, Gu L, Guo YG, Li H, He XQ et al. Rutile-$TiO_2$ nanocoating for a high-rate $Li_4 Ti_5O_{12}$ anode of a lithium-ion battery. Journal of the American Chemical Society 2012
  13. 134 (18): 7874-7879. doi: 10.1021/ja301266w 13. Mor GK, Shankar K,