Influence of structural features on the photocatalytic activity of NaTaO3 powders from different synthesis methods

Hu, Chechia; Teng, Hsisheng

doi:10.1016/j.apcata.2007.07.024

Cited by 164 publications

(86 citation statements)

References 69 publications

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“…Semiconductor photocatalysis is presently attracting tremendous attentions due to its potential applications in clean hydrogen energy generation and decomposition of organic pollutants [1][2][3][4][5][6][7][8][9][10][11][12][13][14]. Since photocatalytic hydrogen generation over TiO 2 electrode was reported [15], a variety of Ti-, Nb-, Ta-, and W-based photocatalysts have been reported to exhibit activities for water splitting and decomposition of organic pollutants.…”

Section: Introductionmentioning

confidence: 99%

NaNbO3 Nanostructures: Facile Synthesis, Characterization, and Their Photocatalytic Properties

et al. 2009

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NaNbO 3 nanowires and cubes were synthesized by means of a facile surfactant-assisted hydrothermal process. The NaNbO 3 nanowires were single-crystalline and showed uniform size with a diameter of about 100 nanometers in width and length of up to several tens of micrometers in length. The NaNbO 3 cubes displayed edges of several hundred nanometers. Meanwhile, the possible growth mechanism of NaNbO 3 nanowires was proposed. In addition, the photocatalytic activities of the NaNbO 3 samples were evaluated for the H 2 evolution from CH 3 OH/ H 2 O solution under UV light irradiation. Compared with the cubes-NaNbO 3 and a NaNbO 3 sample prepared by solid state reaction method, NaNbO 3 nanowires showed a much higher photocatalytic activity.

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Section: Introductionmentioning

confidence: 99%

NaNbO3 Nanostructures: Facile Synthesis, Characterization, and Their Photocatalytic Properties

et al. 2009

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“…These phenomena increase the specific surface area of the material and were believed to be the main reason for the observed improvement in the photocatalytic efficiency with La doping [4]. Further experiments showed the photocatalytic activity of NaTaO 3 is highly dependent on the morphology of the NaTaO 3 crystals; the monoclinic-phase NaTaO 3 shows considerably higher efficiency than the orthorhombic-phase NaTaO 3 [5,6]. Remarkably, the difference is 5 times greater than their difference in surface area [5].…”

Section: Introductionmentioning

confidence: 81%

Role of effective carrier mass in the photocatalytic efficiency of La-doped NaTaO3

Xiang

Sohlberg

2016

Computational Materials Science

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“…Kato et al and Hu and Teng reported NiO loading on La-doped and pure NaTaO3, respectively. The presence of co-catalyst in the photocatalyst caused a significant increase of hydrogen evolution compared to nonloaded NaTaO3 [8][9][10].…”

Section: Introductionmentioning

confidence: 99%

Pt nanoparticle on La0.02Na0.98TaO3 catalyst for hydrogen evolution from glycerol aqueous solution

Husin

Adisalamun

et al. 2017

AIP Conference Proceedings

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Abstract. Pt nanoparticles on La-doped sodium tantalum oxide (La0.02Na0.98TaO3), which acts as an active co-catalyst for H2 evolution under UV light irradiation was successfully synthesized by photo-deposition method. The La0.02Na0.98TaO3 photocatalyst was obtained by the reaction of La(NO3)2.3H2O, TaCl5, and NaOH at ambient temperature. The catalyst produced was characterized by a scanning electron microscope (SEM) and a high-resolution transmission electron microscope (HRTEM). SEM images of the La0.02Na0.98TaO3 sample showing that its particles size is ranging between 50-150 nm. The Pt particles are detected from HRTEM images is around 2-4 nm. The Pt/La0.02Na0.98TaO3 samples prepared were applied for photocatalytic H2 production at 30 o C. The photocatalyst performance was evaluated for hydrogen production from water combining with glycerol as an electron donor (sacrificial reagent). The reactions were carried out in a closed reactor with a gas circulation system, illuminated with mercury (Hg) lamp. The experimental results show that the presence of glycerol in the systems can not only improve the efficiency of photocatalytic hydrogen generation but can also be decomposed to hydrogen efficiently. The photocatalytic activity of La0.02Na0.98TaO3 is significantly enhanced when Pt was loaded onto its crystalline surface.

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Influence of structural features on the photocatalytic activity of NaTaO3 powders from different synthesis methods

Cited by 164 publications

References 69 publications

NaNbO3 Nanostructures: Facile Synthesis, Characterization, and Their Photocatalytic Properties

NaNbO3 Nanostructures: Facile Synthesis, Characterization, and Their Photocatalytic Properties

Role of effective carrier mass in the photocatalytic efficiency of La-doped NaTaO3

Pt nanoparticle on La0.02Na0.98TaO3 catalyst for hydrogen evolution from glycerol aqueous solution

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