Photocatalytic Splitting of Water Over a Novel Visible-Light-Response Photocatalyst Nd2InTaO7

Tang, Xinde; Ye, Hongqi; Zhao, Zhi; Liu, Hui; Ma, Chunde

doi:10.1007/s10562-009-0178-6

Cited by 22 publications

(4 citation statements)

References 33 publications

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“…This can be ascribed to O −2 to Ce +4 charge transfer and interband transitions as well as O −2 to Ce +3 charge transfer transitions [14,25]. The Nd-doped sample shows a red-shift, accompanied by a series of lower energy absorptions, ascribed to 4f interband transitions, typical of Nd [26][27][28]. Something similar, though to a lesser extent, is produced by Sm-doping.…”

Section: Effect Of Different Dopantsmentioning

confidence: 88%

Structural characterization of Tb- and Pr-doped ceria

et al. 2014

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Section: Effect Of Different Dopantsmentioning

confidence: 88%

Structural characterization of Tb- and Pr-doped ceria

et al. 2014

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“…The bond at ∼370 cm −1 can be assigned to F 2g that can be attributed to B 1 -O-B 2 bending and B-O stretching mode, whereas the bond at ∼750 cm −1 can be owed to the B-O stretching mode. [35,42,43] As the A-sites cation radii decrease, the samples possess the gradually broadening features that can be explained by the loss of translation symmetry and formation of disordered fluorite phase. In addition, the wavenumber of the B-O stretching mode increases with the reduction in R A /R B , and the relationship of wavenumber and R A /R B was depicted in Figure 3B.…”

Section: Phase Compositions and Microstructures Of The Highmentioning

confidence: 99%

Phase evolution and thermophysical properties of high‐entropy RE₂(Y_0.2Yb_0.2Nb_0.2Ta_0.2Ce_0.2)₂O₇ oxides

Wang

et al. 2022

J Am Ceram Soc.

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Pursuing novel thermal barrier–coating materials with lower thermal conductivity and high‐temperature stability can simultaneously improve the working efficiency and service temperature of a gas turbine. In this study, a series of high‐entropy RE2(Y0.2Yb0.2Nb0.2Ta0.2Ce0.2)2O7 (RE = La, Nd, Sm, Gd, Dy, and Er) oxides were prepared though solid‐state reaction. Through tuning the rare‐earth cations, an order–disorder transition occurs from certain partially ordered weberite structure (C2221) to disordered defective fluorite structure (Fm3¯$\bar{3}$m). All the high‐entropy RE2(Y0.2Yb0.2Nb0.2Ta0.2Ce0.2)2O7 oxides possess low thermal conductivity in the range of 0.91–1.34 W m−1 K−1 at room temperature, which can be attributed to increased lattice anharmonicity and disorder, resulting in additional phonon scattering. Herein, we proved that the incorporation of heterovalent cations at B‐sites in high‐entropy A2B2O7 crystals is an effective strategy to reduce the thermal conductivity without compromising the decrease of oxygen vacancy. Moreover, the high‐entropy RE2(Y0.2Yb0.2Nb0.2Ta0.2Ce0.2)2O7 oxides show the relatively higher thermal expansion coefficients of 10.3–10.7 × 10−6°C−1 and excellent phase stability at elevated temperatures.

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“…It absorbs only the ultraviolet light (λ ≤ 386.5 nm) which only accounts for about 4.0% of the sunlight. In order to improve the efficiency of the sunlight utilization, the development of photocatalysts with high activity under a wide range of visible light is highly desirable [9][10][11][12][13].…”

Section: Introductionmentioning

confidence: 99%

Controllable Synthesis and Photocatalytic Activity of Ba0.6Mg0.4TiO3 Particles with Different Morphologies

Liu

Zhao

Lin

2014

AMR

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Ba0.6Mg0.4TiO3 (BMT) particles with different morphologies were synthesized through hydrothermal method and their optical and photocatalytic properties were investigated. Their crystal structure and microstructures were characterized using X-ray diffraction (XRD) and field emission scanning electron microscopy (FESEM). XRD patterns demonstrate that the as-prepared samples are tetragonal structure. FESEM shows that BMT crystals can be fabricated in different morphologies by simply manipulating the reaction parameters of hydrothermal process. The UV-visible diffuse reflectance spectra (UV-vis DRS) reveal that the band gaps of BMT photocatalysts are about 2.37 - 2.51 eV. The as-prepared BMT photocatalysts exhibite higher photocatalytic activities in the degradation of methyl orange (MO) under visible light irradiation (λ > 420 nm) compared with traditional N-doped TiO2 (N-TiO2) and pure BaTiO3 (BTO). The high photocatalytic performance of BMT photocatalysts could be attributed to the recombination restraint of the e-/h+ pairs resulting from doping of Mg2+ ions. The influence of morphologies upon the photocatalytic properties of BMT was studied. Furthermore, BMT nanowires reveal the highest photocatalytic activity. Up to 94.0% MO is decolorized after visible light irradiation for 360 min.

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Photocatalytic Splitting of Water Over a Novel Visible-Light-Response Photocatalyst Nd2InTaO7

Cited by 22 publications

References 33 publications

Structural characterization of Tb- and Pr-doped ceria

Structural characterization of Tb- and Pr-doped ceria

Phase evolution and thermophysical properties of high‐entropy RE₂(Y_0.2Yb_0.2Nb_0.2Ta_0.2Ce_0.2)₂O₇ oxides

Controllable Synthesis and Photocatalytic Activity of Ba<sub>0.6</sub>Mg<sub>0.4</sub>TiO<sub>3</sub> Particles with Different Morphologies

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Photocatalytic Splitting of Water Over a Novel Visible-Light-Response Photocatalyst Nd2InTaO7

Cited by 22 publications

References 33 publications

Structural characterization of Tb- and Pr-doped ceria

Structural characterization of Tb- and Pr-doped ceria

Phase evolution and thermophysical properties of high‐entropy RE2(Y0.2Yb0.2Nb0.2Ta0.2Ce0.2)2O7 oxides

Controllable Synthesis and Photocatalytic Activity of Ba<sub>0.6</sub>Mg<sub>0.4</sub>TiO<sub>3</sub> Particles with Different Morphologies

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Phase evolution and thermophysical properties of high‐entropy RE₂(Y_0.2Yb_0.2Nb_0.2Ta_0.2Ce_0.2)₂O₇ oxides