Fabrication of hydrophilic S/In2O3 core–shell nanocomposite for enhancement of photocatalytic performance under visible light irradiation

Meng, Sugang; Cao, Zhisheng; Fu, Xianliang; Chen, Shifu

doi:10.1016/j.apsusc.2014.10.104

Cited by 31 publications

(8 citation statements)

References 70 publications

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“…The detailed procedures have been reported in our earlier reports. 58,59 As shown in Fig. 11, 1% APO/CN exhibits the strongest PL intensity, demonstrating that the amount of OH radicals produced on the 1% APO/CN is the highest.…”

Section: 32mentioning

confidence: 85%

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What is the transfer mechanism of photogenerated carriers for the nanocomposite photocatalyst Ag₃PO₄/g-C₃N₄, band–band transfer or a direct Z-scheme?

Meng

Ning

Zhang

et al. 2015

Phys. Chem. Chem. Phys.

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157

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The separation mechanisms of photoexcited carriers for composite photocatalysts are a hot point in the photocatalytic field. In this paper, the Ag3PO4/g-C3N4 nanocomposites with different main parts (Ag3PO4 or g-C3N4) were synthesized using a facile in situ precipitation method. The photocatalysts were characterized by X-ray powder diffraction, UV-vis diffuse reflection spectroscopy, transmission electron microscopy and Brunauer-Emmett-Teller methods. The photocatalytic performance was evaluated by the degradation of methylene blue under visible light irradiation. When the main part of the Ag3PO4/g-C3N4 photocatalyst is Ag3PO4, the transfer mechanism of photogenerated electron-hole takes generic band-band transfer, and the photocatalytic activity is decreased. However, when the primary part of the Ag3PO4/g-C3N4 photocatalyst is g-C3N4, the migration of photogenerated electron-hole exhibits a typical Z-scheme mechanism, and the photocatalytic activity is increased greatly. The separation mechanisms of photogenerated carriers were investigated by the electron spin resonance technology, the photoluminescence technique and the determination of reactive species in the photocatalytic reactions. It is hoped that this work could render guided information for design and application of Z-scheme photocatalysts with excellent photocatalytic performance.

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Section: 32mentioning

confidence: 85%

“…Detection of the active species. In order to prove the correctness of the mechanism, the existence of O 2 À and OH in the photocatalytic reaction was detected by the ESR and TA-PL technique, [57][58][59][60][61] respectively. From Fig.…”

Section: 32mentioning

confidence: 99%

What is the transfer mechanism of photogenerated carriers for the nanocomposite photocatalyst Ag₃PO₄/g-C₃N₄, band–band transfer or a direct Z-scheme?

Meng

Ning

Zhang

et al. 2015

Phys. Chem. Chem. Phys.

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157

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“…Earlier, several core-shell nanostructures have been successfully investigated for the gas sensing, such as hydrophilic S/In 2 O 3 core-shell nanocomposites, 17 Vanadium pentoxide (V 2 O 5 ) is an important n-type transition metal oxide, which has already been successfully investigated as gas sensing material on nanoscale with one dimensional morphologies. [22][23][24][25][26] However, its high detection threshold, elevated working temperature, low sensitivity and limited selectivity have restricted its usage in practical applications.…”

Section: Introductionmentioning

confidence: 99%

Enhanced ultra-stable n-propylamine sensing behavior of V₂O₅/In₂O₃ core–shell nanorods

et al. 2015

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Heterostructured V 2 O 5 /In 2 O 3 core-shell nanorods were prepared by the combination of solid solution and hydrothermal methods. Microstructural and spectroscopic studies reveal the effective core-shell hetero-nanostructure. The gas sensor based on these nanorods exhibits remarkable gas sensing properties in both static and dynamic modes. It presents optimum working temperature of 190 o C, a reasonable response speed and high selectivity with an ultra-stable reproducible response towards n-propylamine. The sensor also shows enhanced optimum sensitivity (~14), which is 3.90 times as compared to the pure V 2 O 5 nanorods. Such promising gas sensing behavior of the hetero-nanostructured core-shell nanorods has been explained on the basis of energy band model and a suitable gas sensing mechanism has been established as well.

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“…[ 85 ] S is also abundant and stable. [ 86 ] Meng et al [ 86 ] combined S with In 2 O 3 , by a ball‐milling method that produced S cores surrounded by In 2 O 3 nanoparticles. The optimum content of S in these S/In 2 O 3 nanocomposite photocatalysts was 10 wt% for the photocatalytic degradation of RhB, which gave 11.6‐fold and 13.5‐fold higher rate of degradation than that of In 2 O 3 and S, respectively.…”

Section: Heterostructured Photocatalysts Containing Indium Oxides or Indium‐based Semiconductorsmentioning

confidence: 99%

Indium Oxides and Related Indium‐based Photocatalysts for Water Treatment: Materials Studied, Photocatalytic Performance, and Special Highlights

Friedmann

Caruso

2021

Solar RRL

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In2O3 is an emerging material in the photocatalysis research area, with a surge in the number of studies examining indium‐based materials as photocatalysts in recent years. The materials of interest, herein, span the simple indium oxide in different polymorphs and morphologies, ternary, and even quaternary indium oxides, heterostructured systems, all in pure or doped forms. These indium‐based materials offer advantages as photocatalysts compared with the conventional titanium dioxide‐based photocatalysts. Highlights in the literature include reports of the ability of indium oxide to degrade difficult to decompose aqueous organic contaminants while also offering opportunities for visible light activation. These are exciting achievements in this field of research. The unique properties that these materials offer are uncovered, while giving insights as to how indium oxides and related indium‐based materials can be used, in what capacity and the compositional requirements when matched with other semiconductors to achieve high‐performing photocatalysts.

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Fabrication of hydrophilic S/In2O3 core–shell nanocomposite for enhancement of photocatalytic performance under visible light irradiation

Cited by 31 publications

References 70 publications

What is the transfer mechanism of photogenerated carriers for the nanocomposite photocatalyst Ag₃PO₄/g-C₃N₄, band–band transfer or a direct Z-scheme?

What is the transfer mechanism of photogenerated carriers for the nanocomposite photocatalyst Ag₃PO₄/g-C₃N₄, band–band transfer or a direct Z-scheme?

Enhanced ultra-stable n-propylamine sensing behavior of V₂O₅/In₂O₃ core–shell nanorods

Indium Oxides and Related Indium‐based Photocatalysts for Water Treatment: Materials Studied, Photocatalytic Performance, and Special Highlights

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Fabrication of hydrophilic S/In2O3 core–shell nanocomposite for enhancement of photocatalytic performance under visible light irradiation

Cited by 31 publications

References 70 publications

What is the transfer mechanism of photogenerated carriers for the nanocomposite photocatalyst Ag3PO4/g-C3N4, band–band transfer or a direct Z-scheme?

What is the transfer mechanism of photogenerated carriers for the nanocomposite photocatalyst Ag3PO4/g-C3N4, band–band transfer or a direct Z-scheme?

Enhanced ultra-stable n-propylamine sensing behavior of V2O5/In2O3 core–shell nanorods

Indium Oxides and Related Indium‐based Photocatalysts for Water Treatment: Materials Studied, Photocatalytic Performance, and Special Highlights

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Product

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What is the transfer mechanism of photogenerated carriers for the nanocomposite photocatalyst Ag₃PO₄/g-C₃N₄, band–band transfer or a direct Z-scheme?

What is the transfer mechanism of photogenerated carriers for the nanocomposite photocatalyst Ag₃PO₄/g-C₃N₄, band–band transfer or a direct Z-scheme?

Enhanced ultra-stable n-propylamine sensing behavior of V₂O₅/In₂O₃ core–shell nanorods