The Synthesis of $Nb_2Zr_6O_{17-x}N_x$ : A New Visible Light Oxynitride Photocatalyst

$Nb_2Zr_6O_{17-x}N_x$의 합성 : Oxynitride계 신규 가시광 광촉매

  • Kanade, K.G. (Department of Chemistry, Mahatma Phule College) ;
  • Baeg, Jin-Ook (Advanced Chemical Technology Division, Korea Research Institute of Chemical Technology) ;
  • Kale, B.B. (Centre For Materials For Electronics Technology(C-MET), Ministry of Information and Technology, Govt. of India, Panchawati off Pashan Road) ;
  • Lee, Sang-Mi (Advanced Chemical Technology Division, Korea Research Institute of Chemical Technology) ;
  • Moon, Sang-Jin (Advanced Chemical Technology Division, Korea Research Institute of Chemical Technology) ;
  • Lee, Chul-Wee (Advanced Chemical Technology Division, Korea Research Institute of Chemical Technology) ;
  • Chang, Hyun-Ju (Advanced Chemical Technology Division, Korea Research Institute of Chemical Technology)
  • ;
  • 백진욱 (한국화학연구원 화학기술부) ;
  • ;
  • 이상미 (한국화학연구원 화학기술부) ;
  • 문상진 (한국화학연구원 화학기술부) ;
  • 이철위 (한국화학연구원 화학기술부) ;
  • 장현주 (한국화학연구원 화학기술부)
  • Published : 2006.03.15

Abstract

신규 $Nb_2Zr_6O_{17-x}N_x$ 광촉매를 고상합성법처리(solid state synthesis) 후 암모니아가스($NH_3$)에 의한 기상처리법(ammonolysis)으로 합성하였다. 합성된 신규 광촉매 및 이를 다시 Pt 및 $RuO_2$를 도핑 하여 $H_2S$를 광분해하여 수소를 발생 실험을 수행하였다. 이 신규 oxynitrid계 광촉매는 가시광하에서 $H_2S$를 광분해하여 수소를 발생하는(Quantum yield = 13.5 %) 우수한 광촉매 활성을 보여주었다.

Keywords

References

  1. Andew Mills, and Stephen Le Hunte, 'A overview of semiconductor particles', J. Photochem. Photobiol. A: Chemistry, Vol. 108, 1997, p. 1 https://doi.org/10.1016/S1010-6030(97)00118-4
  2. H. Kato, and A. Kudo, 'Visible-light response and photocatalytic activity of $TiO_2$ and $SrTiO_3$ photocatalyst codoped with antimony and chromium', J. Phys. Chem B. Vol. 106, 2002, p. 5029 https://doi.org/10.1021/jp0255482
  3. T. Ishii, H. Kudo, and A. Kudo, '$H_2$ evolution from aqueous methanol solution on $SrTiO_3$ photocatalyst codoped with tantalum and chromium ions under visible light irradiation', J. Photochem. Photobiol. A. Vol. 103, 2004, p. 181
  4. T. Ishii, H. Kato, H. Kobayashi, and A. Kudo, '$H_2$ evolution from aqueous methanol solution on $SrTiO_3$ photocatalyst codoped with tantalum and chromium ions under visible light irradiation', J. Photochem. Photobiol. A. Vol. 163, 2004, p. 181 https://doi.org/10.1016/S1010-6030(03)00442-8
  5. S. A. Naman, 'Photoproductionn of hydrogen sulfide in vanadium sulfide collidal suspension : effect of temp and pressure', Int. J. Hydrogen Energy, Vol. 22, 1997, p. 783 https://doi.org/10.1016/S0360-3199(96)00223-6
  6. D. Park, and J. O. Beag; 'ZnS Photocatalyst, preparation thereof and merthod for producing hydrogen by use of the same', U.S. Patent No. 6,297,190 B1 (Oct. 2, 2001)
  7. D. Park, and J. O. Beag; 'CdZnMs photocatalyst including cations for water decomposition and preparation thereof and method of producing hydrogen by use of the same', U.S. Patent No. 6,517,806 B1 (Feb. 11, 2003)
  8. H. Chang, K. Kong, Y. Choi, E. In, Y. Choi, J. O. Baeg, and S. Moon, 'Electronic structure of $InTaO_4$: A promising photocatalyst', Chem. Phys. Lett., Vol. 398, 2004, p. 449 https://doi.org/10.1016/j.cplett.2004.09.113
  9. A. Kudo, K. Omori, and H. Kato, 'A novel aqueous process for preparation of controlled crystal formation and highly crystal line $BiVO_4$ powder from layered vanadates at room temperature and its photocatalytic and photophysical properties', J. Am. Chem. Soc., Vol. 121, 1999, p. 11459 https://doi.org/10.1021/ja992541y
  10. H. Tokunaga, H. Kato, and H. Kudo, 'Selective preparation of monoclinic and tetragonal $BiVO_4$ with sheet like structure and heir photocatalytic properties', Chem. Mater., Vol. 13, 2001, p. 4024
  11. H. Kato, H. Kobayashi, and A. Kudo, 'Role of Ag+ in the band structure and photocatalytic properties of $AgMO_3$ (M : Ta, Nb) with pyrovskite structure', J. Phys. Chem., Vol. 106, 2002, p. 12441 https://doi.org/10.1021/jp025974n
  12. A. Ishikawa, T. Takata, J. Kondo, M. Hara, K. Kobayashi, and K. Domen, '$Oxusulfide_2$ $Ti_2S_2O_5$ as a stable photocatalyst for water oxidation and reduction under visible light (650 nm)', J. Am. Chem. Soc. Vol. 124, 2002, p. 13547 https://doi.org/10.1021/ja0269643
  13. A. Kasahara, Nukumizu, T. Takata, J. Kondo, M. Hara, H. Kobayash, and K. Domen, '$LaTiO_2N$ as a visible light(600 nm) driven photocatalyst(2)', J. Phys. Chem. B, Vol. 107, 2003, p. 791 https://doi.org/10.1021/jp026767q
  14. M. Hara, T. Takata, J. N. Kondo, and K. Domen, 'Photocatalytic reduction of water by TaON under visible light irradiation', Catalysis Today, Vol. 90, 2004, p. 313 https://doi.org/10.1016/j.cattod.2004.04.040
  15. I. Tsuji, H. Kato and A. Kudo, 'Visible-light-induced $H_2$ evolution from an aqueous solution containing sulfide and sulfite over a ZnS-$CuInS_2$-$AgInS_2$ solid solution photocatalyst', Angew. Chem., Int. Ed., Vol. 44, 2005, p. 3565 https://doi.org/10.1002/anie.200500314
  16. B. B. Kale, Jin-Ook Baeg, Jin S. Yoo, Sang Mi Lee, Chul Wee Lee, Sang-Jin Moon, and Hyunju Chang, 'Synthesis of a novel photocatalyst, $ZnBiVO_4$, for the photodecomposition of $H_2S$', Can. J. Chem., Vol. 83, 2005, p. 527 https://doi.org/10.1139/v05-036