Structural and photocatalytic properties of novel Bi2GaVO7

Luan, Jingfei; Cai, Hong‐Ling; Zheng, Shourong; Hao, Xi-Ping; Luan, Guoyou; Wu, Xiaoshan; Zou, Zhigang

doi:10.1016/j.matchemphys.2007.02.096

Cited by 26 publications

(11 citation statements)

References 27 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Zou et al synthetized Bi 2 MNbO 7 (M = Al, Ga, In, Y or Fe) [51,52,53] which was one remarkable representative of the family of A 2 B 2 O 7 compounds with the A 3+ 2 B 4+ 2 O 7 pyrochlore structure by substituting B 4+ sites in A 3+ 2 B 4+ 2 O 7 for M 3+ (M 3+ = Al 3+ , Ga 3+ , In 3+ ) and Nb 5+ . Similarly, previous studies had reported Bi 2 GaVO 7 [54] and Bi 2 SbVO 7 [55] by element doping, which had realized visible-light photocatalytic degradation and H 2 production. Previous works indicated that the Ga 3+ and In 3+ ions could influence the band gap and the electronic structure of the compound photocatalysts, which was expected to cause the different photocatalytic activity [56,57].…”

Section: Introductionmentioning

confidence: 53%

The Structural, Photocatalytic Property Characterization and Enhanced Photocatalytic Activities of Novel Photocatalysts Bi2GaSbO7 and Bi2InSbO7 during Visible Light Irradiation

Luan

Shen

et al. 2016

Materials

Self Cite

View full text Add to dashboard Cite

In order to develop original and efficient visible light response photocatalysts for degrading organic pollutants in wastewater, new photocatalysts Bi2GaSbO7 and Bi2InSbO7 were firstly synthesized by a solid-state reaction method and their chemical, physical and structural properties were characterized. Bi2GaSbO7 and Bi2InSbO7 were crystallized with a pyrochlore-type structure and the lattice parameter of Bi2GaSbO7 or Bi2InSbO7 was 10.356497 Å or 10.666031 Å. The band gap of Bi2GaSbO7 or Bi2InSbO7 was estimated to be 2.59 eV or 2.54 eV. Compared with nitrogen doped TiO2, Bi2GaSbO7 and Bi2InSbO7, both showed excellent photocatalytic activities for degrading methylene blue during visible light irradiation due to their narrower band gaps and higher crystallization perfection. Bi2GaSbO7 showed higher catalytic activity compared with Bi2InSbO7. The photocatalytic degradation of methylene blue followed by the first-order reaction kinetics and the first-order rate constant was 0.01470 min−1, 0.00967 min−1 or 0.00259 min−1 with Bi2GaSbO7, Bi2InSbO7 or nitrogen doped TiO2 as a catalyst. The evolution of CO2 and the removal of total organic carbon were successfully measured and these results indicated continuous mineralization of methylene blue during the photocatalytic process. The possible degradation scheme and pathway of methylene blue was also analyzed. Bi2GaSbO7 and Bi2InSbO7 photocatalysts both had great potential to purify textile industry wastewater.

show abstract

Section: Introductionmentioning

confidence: 53%

The Structural, Photocatalytic Property Characterization and Enhanced Photocatalytic Activities of Novel Photocatalysts Bi2GaSbO7 and Bi2InSbO7 during Visible Light Irradiation

Luan

Shen

et al. 2016

Materials

Self Cite

View full text Add to dashboard Cite

show abstract

“…Single-phase quaternary oxide materials have been recently studied with the aim to develop novel photocatalysts showing high activity in the visible light region. Luan and coworkers [416][417][418][419][420][421][422][423][424][425] synthesized various series of these compounds utilizing binary oxides as the starting materials. In particular, these series contained Ta (Bi 2 MTaO 7 (M = Ga, In, La, Y)) [416][417][418], Nb (M 2 BiNbO 7 (M = In and Ga)) [419], V (Bi 2 MVO 7 (M = Ga, Fe, Al, Sb)) [420][421][422][423] or Sb (Y 2 MSbO 7 (M = Fe, In)) [424,425].…”

Section: Quaternary Oxidesmentioning

confidence: 99%

A survey of photocatalytic materials for environmental remediation

Paola¹,

García‐López²,

Marcı̀³

et al. 2012

Journal of Hazardous Materials

822

357

View full text Add to dashboard Cite

Heterogeneous photocatalysis is an advanced oxidation process which has been the subject of a huge amount of studies related to air cleaning and water purification. All these processes have been carried out mainly by using TiO(2)-based materials as the photocatalysts and ca. 75% of the articles published in the last 3 years is related to them. This review illustrates the efforts in the search of alternative photocatalysts that are not based on TiO(2), with some exceptions concerning particularly innovative modifications as nanoassembled TiO(2) or TiO(2) composites with active carbon, graphite and fullerene. Papers reporting preparation, characterization and testing of binary, ternary and quaternary compounds, have been reviewed. Despite many of these photocatalysts being effective for the photodecomposition of many pollutants, most of them do not allow a complete mineralization of the starting compounds, differently from TiO(2).

show abstract

“…To obtain the absorbance spectra of the K 2 Ln 2/3 Ta 2 O 7 compounds, these were scanned in the wavelength range from 250 nm to 700 nm, using the DRS technique [35], [36]. As observed in the absorption spectra of the Fig.…”

Section: Absorbance Spectramentioning

confidence: 99%

Synthesis and Characterization of K2Ln2/3Ta2O7·nH2O (Ln= La, Pr, Nd), Layered Tantalates Photocatalysts for Water Splitting.

et al. 2017

View full text Add to dashboard Cite

<p>Three compounds of the K2Ln2/3Ta2O7 (Ln = La, Nd, Pr) cation-deficient Ruddlesden-Popper series were prepared by the Pechini (polymeric complex) method. The crystal structures of the hydrated form of these compounds were determined by Rietveld analysis of the X-ray powder diffraction data and High Resolution Transmission Electron Microscopy (HRTEM). The samples were also analyzed to determine specific area (BET), degree of hydration (TGA), and photocatalytic activity for hydrogen evolution from water and aqueous methanol solution.</p>

show abstract

Structural and photocatalytic properties of novel Bi2GaVO7

Cited by 26 publications

References 27 publications

The Structural, Photocatalytic Property Characterization and Enhanced Photocatalytic Activities of Novel Photocatalysts Bi2GaSbO7 and Bi2InSbO7 during Visible Light Irradiation

The Structural, Photocatalytic Property Characterization and Enhanced Photocatalytic Activities of Novel Photocatalysts Bi2GaSbO7 and Bi2InSbO7 during Visible Light Irradiation

A survey of photocatalytic materials for environmental remediation

Synthesis and Characterization of K2Ln2/3Ta2O7·nH2O (Ln= La, Pr, Nd), Layered Tantalates Photocatalysts for Water Splitting.

Contact Info

Product

Resources

About