Preparation of S, C cation-codoped SrTiO3 and its photocatalytic activity under visible light

Ohno, Teruhisa; Tsubota, Toshiki; Nakamura, Yousuke; Sayama, Kazuhiro

doi:10.1016/j.apcata.2005.04.035

Cited by 175 publications

(92 citation statements)

References 31 publications

Supporting

Mentioning

Contrasting

Unclassified

Order By: Relevance

“…So it is reasonable that C, S cation-codoped SrTiO 3 shows a higher photocatalytic activity than undoped SrTiO 3 , and the absorption edge is formed in the visible light region. These differences of photocatalytic activity under visible light can be explained by correlation with their electronic structures [36]. This indicates to us that C and S play an important role in photocatalytic properties.…”

Section: Band Structuresmentioning

confidence: 93%

“…This indicates that VB of C, Scodoped SrTiO 3 should have a stronger oxidative power than that of undoped SrTiO 3 . So it is reasonable that C, S cation-codoped SrTiO 3 shows a higher photocatalytic activity than undoped SrTiO 3 [36].…”

Section: Density Of Statesmentioning

confidence: 99%

“…There are some new states close to VB, and the contributions to the new states in the gap are derived from the mixture of S 3s, C 2s and O 2p orbitals. Excitations from the new states to a conduction band may be responsible for the red shift of the absorption edge observed in the C, S-codoped SrTiO 3 [36].…”

Section: Partial Density Of Statesmentioning

confidence: 99%

“…N, S, or C anion-doped TiO 2 photocatalysts having an anatase form that show a relatively high level of activity under visible light irradiation have been reported [23][24][25][26][27] 3 and its photocatalytic activity under visible light [29]. After C and S ions were doped into SrTiO 3 , the absorption edge of SrTiO 3 powder shifted greatly from 400 to 700 nm.…”

Section: Introductionmentioning

confidence: 99%

See 3 more Smart Citations

DFT study on electronic structures and optical absorption properties of C, S cation- doped SrTiO3

et al. 2009

View full text Add to dashboard Cite

Abstract:The effects of C cation and S cation doping on the electronic structures and optical properties of SrTiO 3 are investigated by density function theory (DFT) calculations. The calculated results reveal that the top of the valence band is predominately made up of the O 2p states for the pure SrTiO 3 . When SrTiO 3 was doped with C cation and S cation, the top of the valence bands consists mainly of O 2p+C 2s hybrid orbitals and O 2p+S 3s hybrid orbitals, respectively. The band gap of SrTiO 3 is narrowed by the doping with C cation and S cation, especially for the C and S-codoped SrTiO 3 . Moreover, the red shifts of the absorption edge are found by the calculated optical properties, which is consistent with reported experiment results. It is the explanation for their visible light respondency by the presence of C 2s and S 3s states on the upper edge of the valence band. All of these results can explain the good photocatalytic properties of C, S cation-codoped SrTiO 3 under visible light irradiation. PACS (2008): 70.; 71.; 71.22.+i

show abstract

Section: Band Structuresmentioning

confidence: 93%

Section: Density Of Statesmentioning

confidence: 99%

Section: Partial Density Of Statesmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

See 2 more Smart Citations

DFT study on electronic structures and optical absorption properties of C, S cation- doped SrTiO3

et al. 2009

View full text Add to dashboard Cite

show abstract

“…N-doped SrTiO 3 is one of the most investigated anion doping systems in recent years. [11][12][13] In addition, anion-cation codoping has also been reported such as in [N, La] 14, 15 and [S, C] co-doped 16 SrTiO 3 , where absorption edges in the visible light region are observed. In this paper, we report the results of a systematic study of the effects of C-doping on the electronic structure and photocatalytic activity of SrTiO 3 .…”

Section: Introductionmentioning

confidence: 99%

The electronic and optical properties of carbon-doped SrTiO3: Density functional characterization

Yao

2012

AIP Advances

View full text Add to dashboard Cite

The electronic properties and optical activities of C-doped cubic SrTiO3 in perovskite structure are studied by first-principles calculation. The calculated formation energies show that the substitutional C impurity is preferentially occupied at the Ti site. For C@O, the C impurity introduces spin-polarized gap states, and the associated electron excitations among the valence band, the conduction band and the gap states produce various visible-light absorption thresholds. For C@Ti, some C gap states of s-character appear near the bottom of the conduction band, which result in the lowered optical transition energy and thus the visible light absorption as observed in the experiment

show abstract

Recent Progress in Energy‐Driven Water Splitting

et al. 2017

View full text Add to dashboard Cite

Hydrogen is readily obtained from renewable and non‐renewable resources via water splitting by using thermal, electrical, photonic and biochemical energy. The major hydrogen production is generated from thermal energy through steam reforming/gasification of fossil fuel. As the commonly used non‐renewable resources will be depleted in the long run, there is great demand to utilize renewable energy resources for hydrogen production. Most of the renewable resources may be used to produce electricity for driving water splitting while challenges remain to improve cost‐effectiveness. As the most abundant energy resource, the direct conversion of solar energy to hydrogen is considered the most sustainable energy production method without causing pollutions to the environment. In overall, this review briefly summarizes thermolytic, electrolytic, photolytic and biolytic water splitting. It highlights photonic and electrical driven water splitting together with photovoltaic‐integrated solar‐driven water electrolysis.

show abstract

Preparation of S, C cation-codoped SrTiO3 and its photocatalytic activity under visible light

Cited by 175 publications

References 31 publications

DFT study on electronic structures and optical absorption properties of C, S cation- doped SrTiO3

DFT study on electronic structures and optical absorption properties of C, S cation- doped SrTiO3

The electronic and optical properties of carbon-doped SrTiO3: Density functional characterization

Recent Progress in Energy‐Driven Water Splitting

Contact Info

Product

Resources

About