In2O3/Bi2Sn2O7 heterostructured nanoparticles with enhanced photocatalytic activity

Xing, Yonglei; Que, Wenxiu; Yin, Xingtian; He, Zuoli; Liu, Xiaobin; Yang, Yawei; Shao, Jinyou; Kong, Ling Bing

doi:10.1016/j.apsusc.2016.06.057

Cited by 61 publications

(13 citation statements)

References 62 publications

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“…This peak was assigned to the O 2À ions in the tetrahedral interstices of the face-centered cubic In 3+ lattice [84,91,97]. It originates from the oxygen bond of In-O-In [84,[92][93][94][95]98,99].…”

Section: S O Kllmentioning

confidence: 99%

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Levitation-jet synthesis of In-O nanoparticles with room-temperature ferromagnetic properties

Morozov

Белоусова

Firth

et al. 2017

Advanced Powder Technology

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Octahedral and roughly spherical In-In 2 O 3 nanoparticles ranging in average particle size from 30 up to 300 nm were prepared by levitation-jet aerosol synthesis through condensation of metal indium vapor in helium gas flow with gaseous oxygen/air injection at ambient and reduced pressure. Scanning electron microscopy (SEM), X-ray diffraction (XRD), BET measurements, UV-vis, FT-IR, Raman, XPS, and vibratingsample magnetometry (VSM) characterized the nanoparticles. Room-temperature ferromagnetism with maximum magnetization of up to 0.17 emu/g was recorded for the nanoparticles. The results indicate a predominant role of the actual microstructure on the nanoparticle properties. It is suggested that the observed ferromagnetic ordering may be related to intrinsic defects at the In/In 2 O 3 interface structure of such a composite material. This suggestion is in good agreement with the results of optical and XPS experiments on the NPs.

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Section: S O Kllmentioning

confidence: 99%

“…The nature of the third peak O III with maximum at 533.3 eV [90] complies with chemisorbed oxygen and water related species, which is closely related to the hydroxyl groups, attached to the surfaces of samples and absorbed O 2 from their ambient [91][92][93][94][95].…”

Section: S O Kllmentioning

confidence: 99%

Levitation-jet synthesis of In-O nanoparticles with room-temperature ferromagnetic properties

Morozov

Белоусова

Firth

et al. 2017

Advanced Powder Technology

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“…And the appropriate band gap structure endows its benign oxidizing ability . Whereas, rapid recombination of photogenerated charge carriers restricted the widespread application of Bi 2 Sn 2 O 7 as efficient photocatalysts . Driven by the need of solar light harvesting and efficient charge separation, efforts have been dedicated to modulating the lattice structure, electronic structure and surface/interface chemistry, since these intrinsic features often greatly influence the photocatalytic activity.…”

Section: Introductionmentioning

confidence: 99%

Oxygen‐Vacancy‐Mediated Photocatalysis over Bi₂Sn₂O₇: Exceptional Catalytic Activity and Selectivity

Huang

Kou

et al. 2019

ChemCatChem

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A series of Bi2Sn2O7 photocatalysts was developed with the aim to regulate defect chemistry as well as electronic structure by modulating the charge states of tin species for boosting photocatalytic selective oxidation of alcohols performance. Defective centers, such as oxygen vacancies (OVs), were beneficial to enhancing the adsorption and activation of molecular oxygen. Meanwhile, the valence band edge potential of Bi2Sn2O7 with higher OVs content exhibited a distinct downshift, improving the thermodynamical driving force of photooxidation. Additionally, OVs contributed to promoting the separation efficiency of photogenerated carriers, which can be confirmed by the surface photovoltage measurement. By optimizing the electronic structure as well as defect chemistry, the optimal benzyl alcohol conversion efficiency was 76.0 % with selectivity toward benzaldehyde being about 100 %. It's found that photogenerated holes and .O2− active species played critical role in photocatalytic aerobic oxidation. This work may provide a novel insight to clarify the role of defect chemistry during the selective benzyl alcohol oxidation over Bi2Sn2O7 photocatalyst.

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“…However, due to their high Egap (3.2eV), they only absorb UV light. 3 Much effort has been devoted to the further enhancement of the photocatalytic performance of TiO 2 for the degradation of various organic pollutants. 4 A variety of materials, such as metal oxides and metal sulfides, have been coupled with TiO 2 to form composites.…”

Section: Introductionmentioning

confidence: 99%

“…Meanwhile, In 2 O 3 had proved to be an efficient sensitizer to extend the absorption spectra of oxide semiconductor photocatalysts from the UV region into the visible region, with a Egap of 2.8eV. 3,5 However, the photocatalytic activity of pure In 2 O 3 is very low due to the quick recombination of photogenerated electron-hole pairs. This material is obviously more suitable as a sensitizer to be combined with a large band-gap semiconductor.…”

Section: Introductionmentioning

confidence: 99%

Influence of the Number of Layers and Crystallization Temperature on the Photocatalytic Activity of Tio2 / In2O3 Thin Films

Garcia¹,

Gurgel²,

Lovisa³

et al. 2017

MSEIJ

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The resin was prepared by the method of polymerization of complex, this method uses in situ polymerization, soluble metal polymerisation compounds are prepared with citric acid, and only AbstractThe TiO 2 /In 2 O 3 thin films were prepared by the spin coating method, varying their number of layers (4, 8 and 16 layers). The Method of polymerization of complex (CPM) was used to synthesize the precursor resins in order to produce thin films. The TiO 2 /In 2 O 3 films were heat-treated at 300°C, 500°C and 700°C and characterized by X-ray diffraction, scanning electron microscopy (FEG-SEM), atomic force microscopy (AFM), UV-vis spectrophotometer and photoluminescence (PL). It was found that the band gap energy of the as-prepared TiO 2 /In 2 O 3 composite thin films decrease as temperature increases. According to the UV-vis diffuse reflectance spectra, the TiO 2 /In 2 O 3 composite shows good visible-light absorption ability. The photoluminescent properties of the films were studied at room temperature using a wavelength of 350nm excitation. High photoluminescent intensity was observed for the films treated at 300°C heat, studied in different films. The photocatalytic activity of the composite TiO 2 /In 2 O 3 was evaluated by the photodecomposition of methylene blue dye in aqueous solution and showed that all the composite samples presented excellent photocatalytic performance even when recycled. This study shows that the coupling of TiO 2 with In 2 O 3 is an effective way to increase the TiO 2 absorption in the visible region for catalytic applications and that the temperature has a greater influence on the results than the number of layers.

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In2O3/Bi2Sn2O7 heterostructured nanoparticles with enhanced photocatalytic activity

Cited by 61 publications

References 62 publications

Levitation-jet synthesis of In-O nanoparticles with room-temperature ferromagnetic properties

Levitation-jet synthesis of In-O nanoparticles with room-temperature ferromagnetic properties

Oxygen‐Vacancy‐Mediated Photocatalysis over Bi₂Sn₂O₇: Exceptional Catalytic Activity and Selectivity

Influence of the Number of Layers and Crystallization Temperature on the Photocatalytic Activity of Tio2 / In2O3 Thin Films

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In2O3/Bi2Sn2O7 heterostructured nanoparticles with enhanced photocatalytic activity

Cited by 61 publications

References 62 publications

Levitation-jet synthesis of In-O nanoparticles with room-temperature ferromagnetic properties

Levitation-jet synthesis of In-O nanoparticles with room-temperature ferromagnetic properties

Oxygen‐Vacancy‐Mediated Photocatalysis over Bi2Sn2O7: Exceptional Catalytic Activity and Selectivity

Influence of the Number of Layers and Crystallization Temperature on the Photocatalytic Activity of Tio2 / In2O3 Thin Films

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Oxygen‐Vacancy‐Mediated Photocatalysis over Bi₂Sn₂O₇: Exceptional Catalytic Activity and Selectivity