Fabrication of tunable 1D rod-like and 3D yolk-like TiO2 hierarchical architectures for efficient photocatalysis

Luo, Biyun; Dong, Guoping; Ma, Juan; Wei, Tian; He, Chao; Shui, Anze; Du, Bin

doi:10.1007/s10853-019-04247-4

Cited by 8 publications

(4 citation statements)

References 55 publications

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“…It can be seen that the absorption edge of all additional SDS samples is slightly red‐shifted, indicating their increase visible light absorption abilities comparison with the SA. The result confirms that the bandgap was changed by the adding the SDS surfactant and the resulted in widening visible‐light response area [52–54] …”

Section: Resultssupporting

confidence: 63%

“…The result confirms that the bandgap was changed by the adding the SDS surfactant and the resulted in widening visible-light response area. [52][53][54] XPS (X-ray photoelectron spectroscopy) was undertaken to investigate the chemical binding and the surface composition of ZnO nanoparticles. In Figure 9a, XPS survey scan shows that all peaks can be symmetrically attributed to Zn, O and C elements.…”

Section: Characterization and Analysis Of Zno Nanoparticles Using Dif...mentioning

confidence: 99%

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Enhanced Photocatalytic Properties of Surfactants Modified ZnO Particles Synthesized Directly via Sonochemistry Technique

et al. 2022

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The preparation of ZnO with outstanding photocatalytic performance by a simple method without doping the second phase is a challenge. Herein, an environmental, friendly, simple, and quick route is proposed to synthesize the surfactant modified ZnO nanoparticles using different surfactants as the photocatalyst. Introducing the sodium dodecyl sulfate (SDS), an anionic surfactant, increases surface hydroxyl groups, enhances visible light absorption intensity, reduces oxygen defects and decreases recombination rate of photo‐generated electron/hole pairs, which significantly improves the photocatalytic properties in degradation of the rhodamine B (RhB) under visible‐light. In particular, the 6 % SDS surfactant modified ZnO samples demonstrates the excellent photodegradation performance, enabling photodegradation of RhB within 15 minutes. This work provides a new route to synthesize photocatalytic materials with excellent photodegradation performance.

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Section: Resultssupporting

confidence: 63%

Section: Characterization and Analysis Of Zno Nanoparticles Using Dif...mentioning

confidence: 99%

Enhanced Photocatalytic Properties of Surfactants Modified ZnO Particles Synthesized Directly via Sonochemistry Technique

et al. 2022

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“…However, the large band gap of TiO 2 (ca. 3.2 eV for anatase TiO 2 ) and low separation efficiency of photogenerated charge carriers impede its practical application [5][6][7][8][9][10]. Consequently, it is imperative to develop highly efficient TiO 2 -based photocatalysts with visible light response and slow recombination rate of photogenerated electron-hole pairs.…”

Section: Introductionmentioning

confidence: 99%

Facile Synthesis of Anatase–Rutile Diphase N-doped TiO2 Nanoparticles with Excellent Visible Light Photocatalytic Activity

Liu

Hou

et al. 2020

Catalysts

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To further boost the charge separation and photocatalytic activity of TiO2 under visible light, the anatase–rutile mixed-phase nitrogen-doped (N-doped) TiO2 nanoparticles were successfully synthesized through a facile one-step calcining procedure using TiN as raw materials. The crystal phases, morphologies, chemical compositions, textural structures, and optical properties of as-obtained N-doped TiO2 were characterized by the corresponding analytical techniques. The photocatalytic activities of as-fabricated samples were evaluated by degrading 4-chlorophenol (4-CP) and methylene blue (MB) aqueous solution under visible light irradiation. The results revealed that the ratio of rutile to anatase increased with the improvement of sintering temperature, and the sample prepared at 500 °C had the best photocatalytic activity. This might be because it possessed the most appropriate rutile/anatase proportion as well as the nitrogen doping. The transient photocurrent responses, photoluminescence spectra (PL) measurements, and active species trapping experiments were implemented to disclose the photocatalytic mechanism. This work will provide a further insight into the synthesis of highly efficient N-doped TiO2 photocatalysts for organic contaminant removal.

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“…N1s peaks at 399.7 eV were found on the XPS spectra for the Degussa P25 and T-NaF, and thus they could be related to the adsorbed N species. 59 Nonetheless The anodic product of TiB 2 was able to produce Ti 3+ , while the B was oxidized to be B III O 3 3− in the electrolyte. During the hydrothermal treatment, B needs to be reduced slightly if the charge of B is smaller than 3.…”

Section: Resultsmentioning

confidence: 99%

Boron-Doped TiO₂ from Anodization of TiB₂ for Efficient Photocatalysis

Tang

Abdellatif

et al. 2020

J. Electrochem. Soc.

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Anodization of TiB2 monolith rather than Ti0 was employed to prepare boron-doped TiO2 photoelectrochemical (PEC) anode and nanocrystals. The anodization behavior of TiB2 was found to be dependent on the orientation of the crystals and F− ions in the electrolyte. TiB2 orientating in [100] direction after anodization in the presence of F− formed a porous TiO2 layer that can be used as a PEC anode, while TiB2 with exposed (001) facets produced a gel containing Ti species in the electrolyte. The PEC anode or nanocrystals from the gel after hydrothermal treatment was boron-doped TiO2 showing superior photocatalytic performance over the counterpart from Ti0 foil for water splitting or Degussa P25 catalyst for dye degradation, respectively. The anodization of conductive ceramic monolith was demonstrated to be a way of preparing doped semiconductors for enhanced photocatalytic performance.

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Fabrication of tunable 1D rod-like and 3D yolk-like TiO2 hierarchical architectures for efficient photocatalysis

Cited by 8 publications

References 55 publications

Enhanced Photocatalytic Properties of Surfactants Modified ZnO Particles Synthesized Directly via Sonochemistry Technique

Enhanced Photocatalytic Properties of Surfactants Modified ZnO Particles Synthesized Directly via Sonochemistry Technique

Facile Synthesis of Anatase–Rutile Diphase N-doped TiO2 Nanoparticles with Excellent Visible Light Photocatalytic Activity

Boron-Doped TiO₂ from Anodization of TiB₂ for Efficient Photocatalysis

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Fabrication of tunable 1D rod-like and 3D yolk-like TiO2 hierarchical architectures for efficient photocatalysis

Cited by 8 publications

References 55 publications

Enhanced Photocatalytic Properties of Surfactants Modified ZnO Particles Synthesized Directly via Sonochemistry Technique

Enhanced Photocatalytic Properties of Surfactants Modified ZnO Particles Synthesized Directly via Sonochemistry Technique

Facile Synthesis of Anatase–Rutile Diphase N-doped TiO2 Nanoparticles with Excellent Visible Light Photocatalytic Activity

Boron-Doped TiO2 from Anodization of TiB2 for Efficient Photocatalysis

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Boron-Doped TiO₂ from Anodization of TiB₂ for Efficient Photocatalysis