Schottky junction effect enhanced plasmonic photocatalysis by TaON@Ni NP heterostructures

Pei, Lang; Li, Taozhu; Yuan, Yong‐Jun; Yang, Tao; Zhong, Jiasong; Ji, Zhenguo; Yan, Shicheng; Zou, Zhigang

doi:10.1039/c9cc05485e

Cited by 66 publications

(44 citation statements)

References 41 publications

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“…The photochemical stability is also a crucial parameter in industrial applications [24,40,41]. Figure 6d displays the cycling performance of Ag/Ag 2 CrO 4 /BiOCOOH.…”

Section: Photocatalytic Activitymentioning

confidence: 99%

Section: Photocatalytic Mechanismmentioning

confidence: 99%

“…However, IPA exerts little influence on the RhB degradation, implying the subordinate role of •OH radicals. Photoluminescence (PL) spectroscopy was adopted to investigate the charge separation rate, which plays an essential role in determining the photocatalytic capability of a photocatalyst [41][42][43]. Generally, a weakened PL signal corroborates an improvement in separation efficiency of photo- Photoluminescence (PL) spectroscopy was adopted to investigate the charge separation rate, which plays an essential role in determining the photocatalytic capability of a photocatalyst [41][42][43].…”

Section: Photocatalytic Mechanismmentioning

confidence: 99%

“…Photoluminescence (PL) spectroscopy was adopted to investigate the charge separation rate, which plays an essential role in determining the photocatalytic capability of a photocatalyst [41][42][43]. Generally, a weakened PL signal corroborates an improvement in separation efficiency of photo- Photoluminescence (PL) spectroscopy was adopted to investigate the charge separation rate, which plays an essential role in determining the photocatalytic capability of a photocatalyst [41][42][43]. Generally, a weakened PL signal corroborates an improvement in separation efficiency of photo-induced carriers [22,29,30,41,42,44].…”

Section: Photocatalytic Mechanismmentioning

confidence: 99%

“…Generally, a weakened PL signal corroborates an improvement in separation efficiency of photo- Photoluminescence (PL) spectroscopy was adopted to investigate the charge separation rate, which plays an essential role in determining the photocatalytic capability of a photocatalyst [41][42][43]. Generally, a weakened PL signal corroborates an improvement in separation efficiency of photo-induced carriers [22,29,30,41,42,44]. As exhibited in Figure 10, compared with bare BiOCOOH, Ag/Ag 2 CrO 4 /BiOCOOH emerges with a distinctly lower emission intensity, demonstrating the remarkable improvement of charge separation efficiency for Ag/Ag 2 CrO 4 /BiOCOOH.…”

Section: Photocatalytic Mechanismmentioning

confidence: 99%

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BiOCOOH Microflowers Decorated with Ag/Ag2CrO4 Nanoparticles as Highly Efficient Photocatalyst for the Treatment of Toxic Wastewater

Xue

Chen

et al. 2020

Catalysts

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A novel flower-like Ag/Ag2CrO4/BiOCOOH heterojunction photocatalyst was synthesized by a facile in-situ precipitation strategy combined with photoreduction treatment. Morphological studies revealed that numerous Ag/Ag2CrO4 nanoparticles were evenly anchored on BiOCOOH microflowers, producing a novel heterojunction with the compactly interfacial contact. Optical absorption characterization demonstrated that Ag/Ag2CrO4/BiOCOOH possessed much better sunlight harvesting ability than Ag2CrO4/BiOCOOH and BiOCOOH. Photocatalytic experiments verified that compared with BiOCOOH, Ag2CrO4, Ag/Ag2CrO4, and Ag2CrO4/BiOCOOH, Ag/Ag2CrO4/BiOCOOH achieved remarkable efficiency by eliminating 100% of rhodamine B (RhB), 82.6% of methyl orange (MO) or 69.4% of ciprofloxacin (CIP) within 50 min at a catalyst dosage of 0.4 g/L. The high photocatalytic performance is likely owing to the improved sunlight response and the distinctly suppressed recombination of charge carriers arising from the formation of the novel 3D hierarchical heterostructure. The quenching test signified that h+, and •O2− were detected as the prevailing active species in wastewater treatment. This study may provide a viable strategy for enhancing the photocatalytic performance of wide band-gap semiconductors.

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“…The photochemical stability is also a crucial parameter in industrial applications [24,40,41]. Figure 6d displays the cycling performance of Ag/Ag 2 CrO 4 /BiOCOOH.…”

Section: Photocatalytic Activitymentioning

confidence: 99%

Section: Photocatalytic Mechanismmentioning

confidence: 99%

Section: Photocatalytic Mechanismmentioning

confidence: 99%

Section: Photocatalytic Mechanismmentioning

confidence: 99%

Section: Photocatalytic Mechanismmentioning

confidence: 99%

See 3 more Smart Citations

BiOCOOH Microflowers Decorated with Ag/Ag2CrO4 Nanoparticles as Highly Efficient Photocatalyst for the Treatment of Toxic Wastewater

Xue

Chen

et al. 2020

Catalysts

View full text Add to dashboard Cite

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Non‐noble Plasmonic Enhancement ( NNPE ) for PC Energy Conversion

Yang

Cao

2021

Atomic and Nano Scale Materials for Advanced Energy Conversion

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Local Charge Transport at the Interface of Semiconductor and Charge Transport Mediator

Zhang

Lindley

Chen

et al. 2022

Advanced Optical Materials

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Charge transport mediators are commonly used in photoelectronic devices to promote selective charge transport and mitigate carrier losses. However, related investigations are mainly carried out by the trial‐and‐error method, and a deeper understanding of its local charge transport behavior is still lacking. Herein, a comprehensive study is performed on a BiVO4/Ti3C2 photoanode to reveal its local charge transport properties by combing microprobe technologies and numerical computations. For the first time, a nano‐Schottky junction is directly shown at the BiVO4/Ti3C2 interface and the band bending is quantified with promoted hole transport and prolonged photocarrier's lifetime. These mechanistic insights leverage a path to further optimize performance through interface engineering and achieve a photocurrent of 5.38 mA cm−2 at 1.23 V versus reversible hydrogen electrode. This work provides deeper insight into the function of charge transport mediators in view of interface contact rather than material nature and demonstrates a strategy to improve photoelectrochemical performance through Fermi‐level engineering.

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Schottky junction effect enhanced plasmonic photocatalysis by TaON@Ni NP heterostructures

Abstract: The localized surface plasmon resonance and Schottky junction in the TaON@Ni hybrid photocatalyst improve the light harvesting and promote the electron–hole separation and transport of TaON.

Cited by 66 publications

References 41 publications

BiOCOOH Microflowers Decorated with Ag/Ag2CrO4 Nanoparticles as Highly Efficient Photocatalyst for the Treatment of Toxic Wastewater

BiOCOOH Microflowers Decorated with Ag/Ag2CrO4 Nanoparticles as Highly Efficient Photocatalyst for the Treatment of Toxic Wastewater

Non‐noble Plasmonic Enhancement ( NNPE ) for PC Energy Conversion

Local Charge Transport at the Interface of Semiconductor and Charge Transport Mediator

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