Synthesis of Cr                         2                         O                         3                         /TNTs nanocomposite and its photocatalytic hydrogen generation under visible light irradiation

Yao Jun Zhang; Ya Chao Wang; Wei Yan; Tuo Li; Sheng Li; Ya Ru Hu

doi:10.1016/j.apsusc.2009.07.080

Synthesis of Cr ₂ O ₃ /TNTs nanocomposite and its photocatalytic hydrogen generation under visible light irradiation

Yao Jun Zhang
, Ya Chao Wang
, Wei Yan
, Tuo Li
, Sheng Li
, Ya Ru Hu

School of Energy and Power Engineering

Xi'an University of Architecture and Technology

Research output: Contribution to journal › Article › peer-review

33 Scopus citations

Abstract

A novel Cr ₂ O ₃ /TNTs nanocomposite was prepared by loaded suitable amount of amorphous Cr ₂ O ₃ on titanate nanotubes (TNTs) via hydrothermal reaction and impregnation process. XRD, SEM and TEM results demonstrated that the amorphous Cr ₂ O ₃ nanoparticles were homogeneously dispersed on the surface of TNTs. The diffuse reflectance UV-visible absorption spectra exhibited that the spectral response of TNTs was extended to visible light region by coupled with Cr ₂ O ₃ . The 2.5Cr ₂ O ₃ /TNTs nanocomposite showed the highest activity of hydrogen generation by photocatalytic water-splitting under visible light irradiation (λ > 400 nm). The high activity of H ₂ evolution for Cr ₂ O ₃ /TNTs nanocomposites was associated with the donor level in the forbidden band of TNTs semiconductor provided by dopant Cr ³⁺ and a probably photocatalytic mechanism was proposed.

Original language	English
Pages (from-to)	9508-9511
Number of pages	4
Journal	Applied Surface Science
Volume	255
Issue number	23
DOIs	https://doi.org/10.1016/j.apsusc.2009.07.080
State	Published - 15 Sep 2009

UN SDGs

This output contributes to the following UN Sustainable Development Goals (SDGs)

SDG 7 Affordable and Clean Energy

Keywords

Hydrogen production
Nanocomposite
Photocatalysis
Water-splitting

Access to Document

10.1016/j.apsusc.2009.07.080

Cite this

Zhang, Y. J., Wang, Y. C., Yan, W., Li, T., Li, S., & Hu, Y. R. (2009). Synthesis of Cr ₂ O ₃ /TNTs nanocomposite and its photocatalytic hydrogen generation under visible light irradiation Applied Surface Science, 255(23), 9508-9511. https://doi.org/10.1016/j.apsusc.2009.07.080

Zhang, Yao Jun ; Wang, Ya Chao ; Yan, Wei et al. / Synthesis of Cr ₂ O ₃ /TNTs nanocomposite and its photocatalytic hydrogen generation under visible light irradiation In: Applied Surface Science. 2009 ; Vol. 255, No. 23. pp. 9508-9511.

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title = " Synthesis of Cr 2 O 3 /TNTs nanocomposite and its photocatalytic hydrogen generation under visible light irradiation ",

abstract = " A novel Cr 2 O 3 /TNTs nanocomposite was prepared by loaded suitable amount of amorphous Cr 2 O 3 on titanate nanotubes (TNTs) via hydrothermal reaction and impregnation process. XRD, SEM and TEM results demonstrated that the amorphous Cr 2 O 3 nanoparticles were homogeneously dispersed on the surface of TNTs. The diffuse reflectance UV-visible absorption spectra exhibited that the spectral response of TNTs was extended to visible light region by coupled with Cr 2 O 3 . The 2.5Cr 2 O 3 /TNTs nanocomposite showed the highest activity of hydrogen generation by photocatalytic water-splitting under visible light irradiation (λ > 400 nm). The high activity of H 2 evolution for Cr 2 O 3 /TNTs nanocomposites was associated with the donor level in the forbidden band of TNTs semiconductor provided by dopant Cr 3+ and a probably photocatalytic mechanism was proposed.",

keywords = "Hydrogen production, Nanocomposite, Photocatalysis, Water-splitting",

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Zhang, YJ, Wang, YC, Yan, W, Li, T, Li, S & Hu, YR 2009, ' Synthesis of Cr ₂ O ₃ /TNTs nanocomposite and its photocatalytic hydrogen generation under visible light irradiation ', Applied Surface Science, vol. 255, no. 23, pp. 9508-9511. https://doi.org/10.1016/j.apsusc.2009.07.080

Synthesis of Cr ₂ O ₃ /TNTs nanocomposite and its photocatalytic hydrogen generation under visible light irradiation . / Zhang, Yao Jun; Wang, Ya Chao; Yan, Wei et al.
In: Applied Surface Science, Vol. 255, No. 23, 15.09.2009, p. 9508-9511.

Research output: Contribution to journal › Article › peer-review

TY - JOUR

T1 - Synthesis of Cr 2 O 3 /TNTs nanocomposite and its photocatalytic hydrogen generation under visible light irradiation

AU - Zhang, Yao Jun

AU - Wang, Ya Chao

AU - Yan, Wei

AU - Li, Tuo

AU - Li, Sheng

AU - Hu, Ya Ru

PY - 2009/9/15

Y1 - 2009/9/15

N2 - A novel Cr 2 O 3 /TNTs nanocomposite was prepared by loaded suitable amount of amorphous Cr 2 O 3 on titanate nanotubes (TNTs) via hydrothermal reaction and impregnation process. XRD, SEM and TEM results demonstrated that the amorphous Cr 2 O 3 nanoparticles were homogeneously dispersed on the surface of TNTs. The diffuse reflectance UV-visible absorption spectra exhibited that the spectral response of TNTs was extended to visible light region by coupled with Cr 2 O 3 . The 2.5Cr 2 O 3 /TNTs nanocomposite showed the highest activity of hydrogen generation by photocatalytic water-splitting under visible light irradiation (λ > 400 nm). The high activity of H 2 evolution for Cr 2 O 3 /TNTs nanocomposites was associated with the donor level in the forbidden band of TNTs semiconductor provided by dopant Cr 3+ and a probably photocatalytic mechanism was proposed.

AB - A novel Cr 2 O 3 /TNTs nanocomposite was prepared by loaded suitable amount of amorphous Cr 2 O 3 on titanate nanotubes (TNTs) via hydrothermal reaction and impregnation process. XRD, SEM and TEM results demonstrated that the amorphous Cr 2 O 3 nanoparticles were homogeneously dispersed on the surface of TNTs. The diffuse reflectance UV-visible absorption spectra exhibited that the spectral response of TNTs was extended to visible light region by coupled with Cr 2 O 3 . The 2.5Cr 2 O 3 /TNTs nanocomposite showed the highest activity of hydrogen generation by photocatalytic water-splitting under visible light irradiation (λ > 400 nm). The high activity of H 2 evolution for Cr 2 O 3 /TNTs nanocomposites was associated with the donor level in the forbidden band of TNTs semiconductor provided by dopant Cr 3+ and a probably photocatalytic mechanism was proposed.

KW - Hydrogen production

KW - Nanocomposite

KW - Photocatalysis

KW - Water-splitting

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M3 - 文章

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Zhang YJ, Wang YC, Yan W, Li T, Li S, Hu YR. Synthesis of Cr ₂ O ₃ /TNTs nanocomposite and its photocatalytic hydrogen generation under visible light irradiation Applied Surface Science. 2009 Sep 15;255(23):9508-9511. doi: 10.1016/j.apsusc.2009.07.080