Hostname: page-component-78c5997874-lj6df Total loading time: 0 Render date: 2024-11-05T02:32:47.840Z Has data issue: false hasContentIssue false
  • English
  • Français

Structural, photocatalytic, and photophysical properties of perovskite MSnO3 (M = Ca, Sr, and Ba) photocatalysts

Published online by Cambridge University Press:  31 January 2011

Weifeng Zhang ,
Junwang Tang  and
Jinhua Ye
Weifeng Zhang
Affiliation:
Photocatalytic Materials Center, National Institute for Materials Science (NIMS), 1-2-1 Sengen, Tsukuba, Ibaraki 305-0047, Japan
Junwang Tang
Affiliation:
Photocatalytic Materials Center, National Institute for Materials Science (NIMS), 1-2-1 Sengen, Tsukuba, Ibaraki 305-0047, Japan
Jinhua Ye
Affiliation:
Photocatalytic Materials Center, National Institute for Materials Science (NIMS), 1-2-1 Sengen, Tsukuba, Ibaraki 305-0047, Japan
Get access

Abstract

The photophysical properties of MSnO3 (M = Ca, Sr, and Ba) including optical absorption, photoluminescence, and energy band structure including band edge positions were investigated experimentally and theoretically in association with their photocatalytic properties. Photocatalytic reactions for H2 and O2 evolution in the case of sacrificial reagents were performed under ultraviolet (UV) light irradiation. The order of the activities of H2 evolution was CaSnO3 > SrSnO3 > BaSnO3, agreeing not only with that of the conduction-band edges (or band gaps) but also with that of the transferred excitation energy, while that of O2 evolution was CaSnO3 < SrSnO3 < BaSnO3, consistent with that of the angle of the Sn–O–Sn bonds as well as the delocalization of excited energy. When loaded with RuO2 cocatalyst, both CaSnO3 and SrSnO3 can efficiently split pure water into hydrogen and oxygen in a stoichiometric ratio under UV light irradiation. In addition, RuO2-loaded SrSnO3 showed higher water splitting activity than RuO2-loaded CaSnO3 did. This is attributed to the suitable conduction and valence band edges and to high mobility of the photogenerated charge carriers caused by the proper distortion of SnO6 connection in SrSnO3. The RuO2-loaded BaSnO3 photocatalyst cannot split pure water, which might be because of a high concentration of defect centers such as Sn2+ ions and the probability of radiative recombination in BaSnO3.

Keywords

Electronic structureOptical propertiesOxide
Type
Articles
Information
Journal of Materials Research , Volume 22 , Issue 7 , July 2007 , pp. 1859 - 1871
Copyright
Copyright © Materials Research Society 2007

Access options

Get access to the full version of this content by using one of the access options below. (Log in options will check for institutional or personal access. Content may require purchase if you do not have access.)

References

REFERENCES

1Fujishima, A. Honda, K.: Electrochemical photolysis of water at a semiconductor electrode. Nature 238, 37 1972CrossRefGoogle Scholar
2Khan, S.U.M., Al-Shahry, M. Ingler, W.B.: Efficient photochemical water splitting by a chemically modified n-TiO2. Science 297, 2243 2002CrossRefGoogle ScholarPubMed
3Zou, Z., Ye, J., Sayama, K. Arakawa, H.: Direct splitting of water under visible light irradiation with an oxide semiconductor photocatalyst. Nature 414, 625 2001CrossRefGoogle ScholarPubMed
4Kato, H., Asakura, K. Kudo, A.: Highly efficient water splitting into H2 and O2 over lanthanum-doped NaTaO3 photocatalysts with high crystallinity and surface nanostructure. J. Am. Chem. Soc. 125, 3082 2003CrossRefGoogle ScholarPubMed
5Nakamura, R., Okamura, T., Ohashi, N., Imanishi, A. Nakato, Y.: Molecular mechanisms of photo-induced oxygen evolution, PL emission, and surface roughening at atomically smooth (110) and (100) n-(rutile) surfaces in aqueous acidic solutions. J. Am. Chem. Soc. 127, 12975 2005CrossRefGoogle Scholar
6Matsumoto, Y., Unal, U., Tanaka, N., Kudo, A. Kato, H.: Electrochemical approach to evaluate the mechanism of photocatalytic water splitting on oxide photocatalysts. J. Solid State Chem. 177, 4205 2004CrossRefGoogle Scholar
7Kudo, A.: Development of photocatalyst materials for water splitting with the aim at photon energy conversion. J. Ceram. Soc. Jpn. 109, S81 2001CrossRefGoogle Scholar
8Kudo, A., Kato, H. Tsuji, I.: Strategies for the development of visible-light-driven photocatalysts for water splitting. Chem. Lett. (Jpn.). 33, 1534 2004CrossRefGoogle Scholar
9Domen, K., Kondo, J.N., Hara, M. Takata, T.: Photo- and mechanocatalytic overall water splitting reactions to form hydrogen and oxygen on heterogeneous catalysts. Bull. Chem. Soc. Jpn. 73, 1307 2000CrossRefGoogle Scholar
10Kato, H. Kudo, A.: Water splitting into H2 and O2 on alkali tantalate photocatalyst ATaO3 (A = Li, Na, K). J. Phys. Chem. B 105, 4285 2001Google Scholar
11Kato, H., Kobayashi, H. Kudo, A.: Role of Ag+ ions for band structure and photocatalytic properties of AgMO3 (M: Ta and Nb) with the perovskite structure. J. Phys. Chem. B 106, 12441 2002CrossRefGoogle Scholar
12Kudo, A., Kato, H. Nakagawa, S.: Water splitting into H2 and O2 on new Sr2M2O7 (M = Nb and Ta) photocatalysts with layered perovskite structure: Factors affecting the photocatalytic activity. J. Phys. Chem. B 104, 571 2000Google Scholar
13Machida, M., Yabunaka, J. Kijima, T.: Synthesis and photocatalytic property of layered perovskite tantalates, RbLnTa2O7 (Ln = La, Pr, Nd, and Sm). Chem. Mater. 12, 812 2000CrossRefGoogle Scholar
14Yin, J., Zou, Z. Ye, J.: Photophysical and photocatalytic activities of a novel photocatalyst BaZn1/3Nb2/3O3. J. Phys. Chem. B 108, 12790 2004CrossRefGoogle Scholar
15Zhang, W.F., Tang, J. Ye, J.: Photoluminescence and photocatalytic properties of SrSnO3 perovskite. Chem. Phys. Lett. 418, 174 2006CrossRefGoogle Scholar
16Scaife, D.E.: Oxide semiconductors in photoelectrochemical conversion of solar energy. Solar Energy 25, 41 1980Google Scholar
17Eng, H.W., Barnes, P.W., Auer, B.M. Woodward, P.M.: Investigations of the electronic structure of d0 transition metal oxides belonging to the perovskite family. J. Solid State Chem. 175, 94 2003CrossRefGoogle Scholar
18Kumar, A., Choudhary, R.N.R., Singh, B.R. Thakur, A.K.: Effect of strontium concentration on electrical conduction properties of Sr-modified BaSnO3. Ceram. Int. 32, 73 2006CrossRefGoogle Scholar
19Mizoguchi, H., Eng, H.W. Woodward, P.M.: Probing the electronic structures of ternary perovskite and pyrochlore oxides containing Sn4+ or Sb5+. Inorg. Chem. 43, 1667 2004Google Scholar
20Mizoguchi, H., Woodward, P.M., Park, C.H. Keszler, D.A.: Strong near-infrared luminescence in BaSnO3. J. Am. Chem. Soc. 126, 9796 2004CrossRefGoogle ScholarPubMed
21Mountstevens, E.H., Attfield, J.P. Redfern, S.A.T.: Cation-size control of structural phase transitions in tin perovskites. J. Phys. Condens. Matter 15, 8315 2003CrossRefGoogle Scholar
22Mountstevens, E.H., Redfern, S.A.T. Attfield, J.P.: Order-disorder octahedral tilting transition in SrSnO3 perovskite. Phys. Rev. B 71, 220102 2005CrossRefGoogle Scholar
23Payne, M.C., Teter, M.P., Allan, D.C., Arias, T.A. Joannopoulos, J.D.: Iterative minimization techniques for abinitio total-energy calculations: molecular-dynamics and conjugate gradients. Rev. Mod. Phys. 64, 1045 1992CrossRefGoogle Scholar
24Vegas, A., Vallet-Regí, M., González-Calbet, J.M. Alario-Franco, M.A.: The ASnO3 (A = Ca, Sr) perovskites. Acta Crystallogr. B 42, 167 1986Google Scholar
25Green, M.A., Prassides, K., Day, P. Neumann, D.A.: Structure of the n=2 and n=∞ member of the ruddlesden-popper compounds, Sr(n+1)Sn(n)O3(n+1). Int. J. Inorg. Mater. 2, 35 2000CrossRefGoogle Scholar
26Smith, A.J. Welch, J.E.: Some mixed metal oxides of perovskite structure. Acta Crystallogr. 13, 653 1960Google Scholar
27Shannon, R.D.: Revised effective ionic radii and systematic studies of interatomic distances in halides and chalcogenides. Acta Crystallogr. A 32, 751 1976CrossRefGoogle Scholar
28Zheng, H., Reaney, I.M., Csete de Györgyfalva, G.D.C., Ubic, R., Yarwood, J., Seabra, M.P. Ferreira, V.M.: Raman spectroscopy of CaTiO3-based perovskite solid solutions. J. Mater. Res. 19, 488 2004Google Scholar
29Zheng, H., Bagshaw, H., Csete de Györgyfalva, G.D.C., Reaney, I.M., Ubic, R. Yarwood, J.: Raman spectroscopy and microwave properties of CaTiO3-based ceramics. J. Appl. Phys. 94, 2948 2003CrossRefGoogle Scholar
30Butler, M.A.: Photoelectrolysis and physical properties of the semiconducting electrode WO3. J. Appl. Phys. 48, 1914 1977CrossRefGoogle Scholar
31Wiegel, M., Emond, M.H.J., Stobbe, E.R. Blasse, J.: Luminescence of alkali tantalates and niobates. J. Phys. Solids 55, 773 1994CrossRefGoogle Scholar
32Butler, M.A. Ginley, D.S.: Prediction of flatband potentials at semiconductor-electrolyte interface from atomic electronegativitics. J. Electrochem. Soc. 125, 228 1978CrossRefGoogle Scholar
33Nethercot, A.H.: Prediction of fermi energies and photoelectric thresholds based on electronegativity Concepts. Phys. Rev. Lett. 33, 1088 1974CrossRefGoogle Scholar
34Kim, Y., Atherton, S.J., Brigham, E.S. Mallouk, T.E.: Sensitized layered metal oxide semiconductor particles for photochemical hydrogen evolution from nonsacrificial electron donors. J. Phys. Chem. 97, 11802 1993Google Scholar
35Parr, R.G. Pearson, R.G.: Absolute hardness: Companion parameter to absolute electronegativity. J. Am. Chem. Soc. 105, 7512 1983CrossRefGoogle Scholar
36Pearson, R.G.: Chemical Hardness: Applications from Molecules to Solid. Wiley-VCH, Verlag, Weinheim, Germany 1997 38CrossRefGoogle Scholar
37Karakitsou, K.E. Verykios, X.E.: Influence of catalyst parameters and operational variables on the photocatalytic cleavage of water. J. Catal. 134, 629 1992CrossRefGoogle Scholar
38Oosawa, Y., Takahashi, R., Yonemura, M., Sekine, T. Goto, Y.: Photocatalytic hydrogen evolution and oxygen evolution over ternary titanate and relationship between physical properties and kinetic properties. N. J. Chem. 13, 435 1989Google Scholar
39Yin, J., Zou, Z. Ye, J.: Possible role of lattice dynamics in the photocatalytic activity of BaM1/3N2/3O3 (M = Ni, Zn; N = Nb, Ta). J. Phys. Chem. B 108, 8888 2004Google Scholar