Synthesis of SrFe12O19 and Sr7Fe10O22 systems for visible light photocatalytic studies
1
조회
0
다운로드
1
인용
0
참고문헌
키워드
초록
Solid state synthesis of two Sr-Fe-O systems viz. Sr7Fe10O22 and SrFe12O19 was attempted and they were investigated for their photocatalytic properties. Although, both the systems exhibited good cystallinity and optical properties, only Sr7Fe10O22 was found to be active for the photocatalytic decomposition of iso-propanol under visible light. It also yielded a significant quantum yield (~1.7%) for photo-reduction of water under visible light irradiation, much better than titanium oxy-nitride samples. The inactiveness of SrFe12O19 was due to its unsuitable band energetics. The Sr7Fe10O22 acted more efficiently than TiO2-xNx due to its suitable band positions and high visible light photon absorptivity.
Abstract
Solid state synthesis of two Sr-Fe-O systems viz. Sr7Fe10O22 and SrFe12O19 was attempted and they were investigated for their photocatalytic properties. Although, both the systems exhibited good cystallinity and optical properties, only Sr7Fe10O22 was found to be active for the photocatalytic decomposition of iso-propanol under visible light. It also yielded a significant quantum yield (~1.7%) for photo-reduction of water under visible light irradiation, much better than titanium oxy-nitride samples. The inactiveness of SrFe12O19 was due to its unsuitable band energetics. The Sr7Fe10O22 acted more efficiently than TiO2-xNx due to its suitable band positions and high visible light photon absorptivity.
참고문헌 (24)
- H. G. Kim, , J. Am. Chem. Soc, 126, pp.8912~8913 (2004)
- K. Maeda, , J. Am. Chem. Soc, 127, pp.8286~8287 (2005)
- P. H. Borse, "Synthesis of Barium Ferrite for Visible Light Photocatalysis Applications", Journal of the Korean Physical Society, 58(6), pp.1672~1676 (2011), 한국물리학회
- J. S. Jang, , J. Nanosci. Nanotech, 10, pp.5008~5014 (2010)
- G. Hitoki, , Chem. Commun, pp.1698~1699 (2002)
- R. Asahi, , Science, 293, pp.269~271 (2001)
- SUM. Khan, , Science, 297, pp.2243~2245 (2002)
- S. Sakthivel, , Angew. Chem. Int. Ed, 42, pp.4908~4911 (2003)
- E.D. Jeong, "Hydrothermal synthesis of Cr and Fe co-doped TiO₂ nanoparticle photocatalyst", Journal of Ceramic Processing Research, 9(3), pp.250~253 (2008), 세라믹공정연구센터
- Pramod H. Borse, "Effect of co-dopant ratio (Cr", Fe) on visible light photocatalytic activity of Cr-Fe co-doped TiO2 nanoparticles, 2011, pp.12(5), 592~598[DOI]
- J. S. Jang, , Inter. J. Hydrogen Energy, 32, pp.4786~4791 (2007)
- J. S. Jang, , Inter. J. Hydrogen Energy, 33, pp.5975~5980 (2008)
- H. G. Kim, , Angew. Chem. Int. Ed, 44, pp.4585~4589 (2005)
- H. G. Kim, , Appl. Phys. Lett, 89, pp.0641031~0641033 (2006)
- H. G. Kim, , Chem. Comm, pp.5889~5891 (2009)
- E. D. Jeong, , J. Nanosci. Nanotech, 9, pp.3568~3573 (2009)
- X. Wang, , J. Alloys Compd, pp.6585~6588 (2011)
- C-H Chen, , J. Alloys Compd, 501, pp.168~172 (2010)
- H. Yang, , J. Alloys Compd, 476, pp.715~719 (2009)
- Z. Wang, , J. Alloys Compd, 509, pp.6893~6898 (2011)
- J. S. Jang, , J Solid State Chem, 179, pp.1067~1075 (2006)
- B.D. Cullity, "Elements of X-ray Diffraction" (1978), Addison-Wesley Publishing Company, Inc.
- S. W. Bae, "Photophysical Properties of Nanosized Metal-Doped TiO2 Photocatalyst Working under Visible Light", Journal of the Korean Physical Society, 51(I), pp.22~26 (2007), 한국물리학회
- S. J. Hong, "Structure of PbBi2Nb2O9 and its Cr-Doped Layered Perovskite System and Their Photocatalytic Activities", Journal of the Korean Physical Society, 51(I), pp.27~31 (2007), 한국물리학회