Photocatalytic property of perovskite bismuth titanate

Yao, Wei; Xu, Xiaoqing; Wang, Hong; Zhou, Jing; Yang, Xue; Zhang, Yin; Shang, Shu; Huang, Boshi

doi:10.1016/j.apcatb.2004.04.002

Cited by 209 publications

(82 citation statements)

References 36 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…In our case, the same amount of decolorization of the same MO concentration was achieved using only 1 g/L BNdT and BTO nanoplates within 150 and 195 min, respectively. In addition, the average light intensity used in this work (112 lW/cm 2 ) was much lower than that used by Yao et al [10] (936 lW/cm 2 ).…”

Section: Methodsmentioning

confidence: 50%

“…5b. Yao et al [10] reported that 60 % of a 20 mg/L MO solution was decolorized by 6 g/L BTO spherical-shaped nanoparticles after UV irradiation for 240 min. In our case, the same amount of decolorization of the same MO concentration was achieved using only 1 g/L BNdT and BTO nanoplates within 150 and 195 min, respectively.…”

Section: Methodsmentioning

confidence: 99%

“…Consequently, a great deal of effort has been devoted to develop bismuth-containing photocatalysts with high activities for environmental applications and/or water splitting. These include BiVO 4 , CaBi 2 O 4 , BiFeO 3 , Bi 2 WO 6 , PbBi 2 Nb 2 O 9 , and Bi 4 Ti 3 O 12 (BTO) [5][6][7][8][9][10].…”

Section: Introductionmentioning

confidence: 99%

“…Furthermore, as a typical ferroelectric material, BTO-based layered-perovskites have internal dipolar fields that may separate both the electron-hole pairs and the products of the redox reactions [12], and thereby increase the photocatalytic efficiency. Therefore, BTO-based ferroelectrics are expected to be a new kind of photocatalyst with high efficiency [10,13].…”

Section: Introductionmentioning

confidence: 99%

See 3 more Smart Citations

Photocatalytic activity of hydrothermally-synthesized single-crystalline Bi3.15Nd0.85Ti3O12 nanoplates

Liu

Xiao

et al. 2015

J Mater Sci: Mater Electron

View full text Add to dashboard Cite

Single-crystalline Bi 3.15 Nd 0.85 Ti 3 O 12 (BNdT) nanoplates were synthesized through a hydrothermal process and BNdT microplates were obtained by post-annealing of the as-prepared nanoplates. Structural and morphological characterizations revealed that all the asprepared products were orthorhombic layered-perovskite and plate-like in shape. The photocatalytic activity of the BNdT nanoplates was evaluated using the degradation of methyl orange (MO) solution. When the nanoplates were used as the catalyst, up to 70 % MO was decolorized after UV irradiation for 195 min, whereas lower than 8 % MO was decolorized when the microplates were used under the same conditions. The photocatalytic decolorization of MO solution by the catalyst was a pseudo-first-order kinetics reaction.

show abstract

Section: Methodsmentioning

confidence: 50%

Section: Methodsmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

See 2 more Smart Citations

Photocatalytic activity of hydrothermally-synthesized single-crystalline Bi3.15Nd0.85Ti3O12 nanoplates

Liu

Xiao

et al. 2015

J Mater Sci: Mater Electron

View full text Add to dashboard Cite

show abstract

“…Bi 4 Ti 3 O 12 has been proposed, with a relatively high photocatalyst activity attributed to the effective utilization of interlayer space as reaction sites [87]. Examples that show the potential of Bi 4 Ti 3 O 12 for this type of applications can be found in the photodegradation of methyl orange [84,88]. The photocatalytic activity is high, although lower than for TiO 2 .…”

Section: Photocatalyticmentioning

confidence: 99%

Review and Perspectives of Aurivillius Structures as a Lead-Free Piezoelectric System

Moure

2018

Applied Sciences

107

View full text Add to dashboard Cite

According to the EU-Directives 2002/95/EC, 2002/96/EC, lead-based piezoceramics must be substituted in the future with more environmentally friendly alternatives, only when a reliable alternative is found. This is why an increasing interest has grown in the research community to find lead free piezoelectric materials that fulfil the requirements for this substitution. Different families of compounds have been shown to be possible candidates for this use, such as bismuth and niobates based perovskites, pyrochlores, etc. However, a material with piezoelectric coefficients similar to those of PZT (lead zirconate titanate, Pb[Zr x Ti 1-x ]O 3 ) has not been yet found. Besides, each of these families has its specific characteristics in terms of remnant polarization, coercive field or application temperature. Thus, the choice of each material should be made according to the specific needs of the application. In this sense, Aurivillius-type structure materials (also known as Bismuth Layered Structure Ferroelectrics, BLSF) can take advantage of their specific properties for uses as Lead Free Piezoelectric systems. Some of them have a high Curie temperature, which make them good candidates to be used as high temperature piezoelectrics; high coercive fields, which facilitates their use as actuators; or a high switching fatigue resistance, which can be useful for future applications as Ferroelectric Random Access Memories (FERAM).Keywords: bismuth layered ferroelectric structures; aurivillius; piezoelectric; multiferroic OverviewMany of the peculiar characteristic properties of Aurivillius materials are determined by their crystalline structure. Figure 1 shows the prototype of the Aurivillius structure as a function of the number of pseudo-perovskite layers [2]. The "n" values can range from 1 to ∞. In this case (n = ∞), the repeated cell is the pure perovskite. The number of perovskites can be odd, even or a mixture. Examples of each case are Bi 2 WO 6 (n = 1) and Bi 4 Ti 3 O 12 (n = 3); Bi 3 TiNbO 9 , SrBi 2 Nb 2 O 9 (n = 2) and CaBi 4 Ti 4 O 12 (n = 4); an example for a mixture Aurivillius is Bi 7 Ti 4 NbO 21 . In this case, layers with 2 or 3 pseudo-perovskites are alternated with the [Bi 2 O 2 ] 2+ layers.At difference of the ferroelectrics with perovskite structure, the polarization is not produced by the displacement of the B cation within the oxygen octahedral but by relative shifts of the oxygen octahedral through the a-axis with respect to the [001] bismuth chain. They can be divided in 3 main movements, as illustrated in references [3-5]:Oxygen octahedral in the a-axis. -Relative displacements in the opposite direction to B cations of the perovskite with respect to the octahedral. -Displacement through the a-axis of the oxygen ions of the Bi-O layer.

show abstract

Typical Synthesis and Environmental Application of Novel TiO₂Nanoparticles

Ghorai¹

2014

Advanced Materials for Agriculture, Food, and Environmental Safety

View full text Add to dashboard Cite

Photocatalytic property of perovskite bismuth titanate

Cited by 209 publications

References 36 publications

Photocatalytic activity of hydrothermally-synthesized single-crystalline Bi3.15Nd0.85Ti3O12 nanoplates

Photocatalytic activity of hydrothermally-synthesized single-crystalline Bi3.15Nd0.85Ti3O12 nanoplates

Review and Perspectives of Aurivillius Structures as a Lead-Free Piezoelectric System

Typical Synthesis and Environmental Application of Novel TiO₂Nanoparticles

Contact Info

Product

Resources

About

Photocatalytic property of perovskite bismuth titanate

Cited by 209 publications

References 36 publications

Photocatalytic activity of hydrothermally-synthesized single-crystalline Bi3.15Nd0.85Ti3O12 nanoplates

Photocatalytic activity of hydrothermally-synthesized single-crystalline Bi3.15Nd0.85Ti3O12 nanoplates

Review and Perspectives of Aurivillius Structures as a Lead-Free Piezoelectric System

Typical Synthesis and Environmental Application of Novel TiO2Nanoparticles

Contact Info

Product

Resources

About

Typical Synthesis and Environmental Application of Novel TiO₂Nanoparticles