Bulletin of the Korean Chemical Society

  • 제30권3호
  • /
  • Pages.675-678
  • /
  • 2009
  • /
  • 0253-2964(pISSN)
  • /
  • 1229-5949(eISSN)
대한화학회 (Korean Chemical Society)
권호 표지
DOI QR코드

DOI QR Code

High Photocatalytic Activity of Gd2O2S:Tb Modified Titanium Dioxide Films

  • 발행 : 2009.03.20
PDF 다운로드
⟨ 이전 논문 다음 논문 ⟩

초록

$Fe_2O_3,\;Ag_2O,\;CaWO_4$ and $Gd_2O_2S$:Tb loaded on titanium dioxide photocatalysts (P25, Degussa) were prepared by a calcination. Their composite films containing water-born polyurethane used as a material for immobilization were obtained by spray coating technique. The photocatalytic activity of the titanium dioxide films was characterized by decrease of UV-vis absorption spectra for methylene blue and gas chromatography for photocatalytic decomposition of formaldehyde diluted in water. It was shown that the $Gd_2O_2S$:Tb modified titanium dioxide films had good photocatalytic properties and followed the first-order kinetic model with regard to photocatalytic decoloration of methylene blue. Especially in formaldehyde photodegradation experiment, decrease rate of concentration of the titanium dioxide films with $Gd_2O_2S$:Tb modifying was about 35% larger than that of the unloaded titanium dioxide film.

키워드

참고문헌

  1. Hsien, V.-H.; Chang, C.-F.; Chen, Y. H.; Cheng, S. App. Catal. B: Environ. 2001, 31, 241 https://doi.org/10.1016/S0926-3373(00)00283-6
  2. Herrmann, J.-M.; Disdier, J.; Pichat, P. Chem. Phys. Lett. 1984, 108, 618 https://doi.org/10.1016/0009-2614(84)85067-8
  3. Ranjit, K. T.; Willmer, I.; Bossmann, S. H.; Braun, A. M. Environ. Sci. Technol. 2001, 35, 1544 https://doi.org/10.1021/es001613e
  4. Cun, W.; Jincai, Z.; Xinming, W.; Bixiom, M.; Guoying, S.; Pingan, P.; Jiamo, F. App. Catal. B: Environ. 2002, 39, 269 https://doi.org/10.1016/S0926-3373(02)00115-7
  5. Brezova, V.; Blakova, A.; Karpinsky, L.; Groskova, J.; Harlinova, B.; Jorik, V.; Ceppan, M. J. Photochem. Photobiol. A: Chem. 1997, 109, 177 https://doi.org/10.1016/S1010-6030(97)00121-4
  6. Asahi, R.; Morikawa, T.; Ohwaki, T.; Aoki, K.; Taga, Y. Science 2001, 293, 269 https://doi.org/10.1126/science.1061051
  7. Xie, Y.; Yuan, C. Catal. B: Environ. 2003, 46, 251 https://doi.org/10.1016/S0926-3373(03)00211-X
  8. Shah, S. I.; Li, W.; Huang, C. P.; Jung, O.; Ni, C. PNAS 2002, 99, 6382 https://doi.org/10.1073/pnas.092654299
  9. Chen, M.-L.; Bae, J.-S.; Oh, W.-C. Bull. Korean Chem. Soc. 2006, 27, 1423 https://doi.org/10.5012/bkcs.2006.27.9.1423
  10. Saif, M.; Abdel-Mottaleb, M. S. A. Inorg. Chim. Acta 2007, 360, 2863 https://doi.org/10.1016/j.ica.2006.12.052
  11. Wickersheim, K. A.; Alves, R. V.; Buchanan, R. A. IEEE Trans. Nuclear Sci. 1970, 1, 57
  12. Gurvich, A. M.; Katomina, R. V.; Myagkova, M. G.; Rassokhin, B. M.; Rozenshtraukh, L. S.; Soshchin, N. P.; Tombak, M. I. Vestn. Rentgenol. Radiol. 1975, 5, 64
  13. Amiryan, A. M.; Gurvich, A. M.; Katomina, R. V.; Petrova, I. Yu.; Soshchin, N. P.; Tombak, M. I. Zhurnal Prikladnoi Spektroskopii 1977, 27, 468
  14. Shanker, V.; Ghosh, P. K.; Narnag, H. P.; Chander, H. Springer Proceedings in Physics; Springer: New York, 1989; vol. 38, p 127 https://doi.org/10.1007/978-3-642-93430-8_26
  15. da Silva, A. A.; Cebim, M. A.; Davolos, M. R. J. Luminescence 2008, 128, 1165 https://doi.org/10.1016/j.jlumin.2007.11.095
  16. Luo, X.; Cao, W.; Tian, Y. Opt. Mater. 2007, 30, 351 https://doi.org/10.1016/j.optmat.2006.11.066
  17. Popovici, E.; Muresan, L.; Simoc, A. H.; Indrea, E.; Vasilescu, M.; Nazarov, M.; Jeon, D. Y. Opt. Mater. 2005, 27, 559 https://doi.org/10.1016/j.optmat.2004.07.006
  18. Faucher, M. D.; Morlotti, R.; Moune, O. K. J. Luminescence 2002, 96, 37 https://doi.org/10.1016/S0022-2313(01)00212-5

피인용 문헌

  1. Light converting phosphor-based photocatalytic composites vol.5, pp.10, 2015, https://doi.org/10.1039/C5CY00622H
  2. Enhanced Photocatalytic Activity of 3,4,9,10-Perylenetetracarboxylic Diimide Modified Titanium Dioxide Under Visible Light Irradiation vol.31, pp.10, 2010, https://doi.org/10.5012/bkcs.2010.31.10.2849