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Journal of Materials Science

, Volume 49, Issue 3, pp 1336–1344 | Cite as

Shifting mechanisms in the initial stage of dye photodegradation by hollow TiO2 nanospheres

  • Bing Wang
  • Chuang Li
  • Hao Cui
  • Jin Zhang
  • Jianping Zhai
  • Qin Li
Article

Abstract

Hollow TiO2 (HT) sphere aggregates were prepared using carbon spheres as templates. The photocatalytic activity of HT was determined by degradation of two nitrogen-containing dyes, methylene blue (MB) and methyl orange (MO). The adsorption isotherms and the photocatalytic degradation kinetics of the two dyes were studied and compared using different concentrations of dyes for the pure, isopropanol-added, and KI-added systems. Isopropanol was used as a OH radical scavenger, while KI was added as a valance band hole scavenger. The results showed that the reaction mechanism of the photocatalytic process of MB was first governed by OH radicals, and then by valence band holes, whereas holes played a major role in the whole photodegradation process of MO. The photocatalytic adsorption constant K V has a positive correlation with the reaction constant k ov in all systems. The photodegradation efficiencies of the dyes were discussed considering the surface characteristics of HT and the structure of the dyes with different catalyst loads (0.25–2 g L−1) and under different pH (3–10) conditions. Compared with solid TiO2, HT exhibited enhanced performance in photocatalytic degradation of both MB and MO.

Keywords

Methylene Blue Total Organic Content Photocatalytic Activity Photocatalytic Degradation Methyl Orange 
These keywords were added by machine and not by the authors. This process is experimental and the keywords may be updated as the learning algorithm improves.

Notes

Acknowledgements

The authors gratefully acknowledge financial support from the Foundation of State Key Laboratory of Pollution Control and Resource Reuse of China, the Natural Science Foundation of China (No. 51008154), the Jiangsu Natural Science Foundation (No. SBK201022682), the Research Fund for the Doctoral Program of Higher Education of China (No. 20090091120007), the Fundamental Research Funds for the Central University (No. 1112021101), the Jiangsu Cultivation of Innovative Engineering for Graduate Students (CXZZ12_0063), the Scientific Research Foundation of Graduate School of Nanjing University (No. 2012CL10), and the China Postdoctoral Science Foundation funded project (No. 2012M511254).

Supplementary material

10853_2013_7817_MOESM1_ESM.docx (1.9 mb)
Supplementary material 1 (DOCX 1919 kb)

References

  1. 1.
    Baca M, Li WJ, Du P, Mul G, Moulijin JA, Coppens MO (2006) Catal Lett 109:207CrossRefGoogle Scholar
  2. 2.
    Zhang L, Yan J, Zhou M, Yang Y, Liu Y (2013) Appl Surf Sci 268:237CrossRefADSGoogle Scholar
  3. 3.
    Yu J, Yu X (2008) Environ Sci Technol 42:4902PubMedCrossRefADSGoogle Scholar
  4. 4.
    Yang G, Xu Q, Zheng W (2012) J Mater Sci 47:2072. doi: 10.1007/s10853-011-5888-7 CrossRefADSGoogle Scholar
  5. 5.
    Li YT, Chen L, Guo YL, Sun XG, Wei Y (2012) Chem Eng J 181–182:734CrossRefGoogle Scholar
  6. 6.
    Chen J, Chen C, Liu J, Xu R, Qiao S, Lou X (2011) Chem Commun 47:2631CrossRefGoogle Scholar
  7. 7.
    Liu Z, Bai H, Sun D (2011) Appl Catal B 104:234CrossRefGoogle Scholar
  8. 8.
    Vivero-Escoto JL, Chiang YD, Wu KC, Yamauchi Y (2012) Sci Technol Adv Mater 13:013003CrossRefGoogle Scholar
  9. 9.
    Choi J, Kim O, Kwak Y (2007) Environ Sci Technol 41:5833PubMedCrossRefADSGoogle Scholar
  10. 10.
    Zhao W, Feng L, Yang R, Zheng J, Li X (2011) Appl Catal B 103:181CrossRefGoogle Scholar
  11. 11.
    Ikeda S, Kobayashi H, Sugita T, Ikoma Y, Harada T, Matsumura M (2009) Appl Catal A 363:216CrossRefGoogle Scholar
  12. 12.
    Ao Y, Xu J, Fu D, Yuan C (2008) Catal Commun 2008(9):2574CrossRefGoogle Scholar
  13. 13.
    Kou J, Li Z, Yuan Y, Zhang H, Wang Y, Zou Z (2009) Environ Sci Technol 2009(43):2919CrossRefADSGoogle Scholar
  14. 14.
    Chen Y, Yang S, Wang K, Lou L (2005) J Photochem Photobiol A 172:47CrossRefGoogle Scholar
  15. 15.
    Sun S, Ding J, Bao J, Gao C, Qi Z, Li C (2010) Catal Lett 137:239CrossRefADSGoogle Scholar
  16. 16.
    Sahel K, Perol N, Chermette H, Bordes C, Derriche Z, Guillard C (2007) Appl Catal B 77:100CrossRefGoogle Scholar
  17. 17.
    Yang S, Lou L, Wang K, Chen Y (2006) Appl Catal A 301:152CrossRefGoogle Scholar
  18. 18.
    Wang X, He H, Chen Y, Zhao J, Zhang X (2012) Appl Surf Sci 258:5863CrossRefADSGoogle Scholar
  19. 19.
    Giraldo AL, Penuela GA, Torres-Palma RA, Pino NJ, Palominos RA, Mansilla HD (2010) Water Res 44:5158PubMedCrossRefGoogle Scholar
  20. 20.
    Lopez-Alvarez B, Torres-Palma RA, Penuela G (2011) J Hazard Mater 191:196PubMedCrossRefGoogle Scholar
  21. 21.
    Karkmaz M, Puzenat C, Guillard C, Herrmann JM (2004) Appl Catal B 51:183CrossRefGoogle Scholar
  22. 22.
    Nagaveni K, Sivalingam G, Hegde MS, Madras G (2004) Appl Catal B 48:83CrossRefGoogle Scholar
  23. 23.
    Palominos R, Freer J, Mondaca MA, Mansilla HD (2008) J Photochem Photobiol A 193:139CrossRefGoogle Scholar
  24. 24.
    Kormali P, Triantis T, Dimotikali D, Hiskia A, Papaconstantinou E (2006) Appl Catal B 68:139CrossRefGoogle Scholar
  25. 25.
    Chen F, Fang P, Liu Z, Gao Y, Liu Y, Dai Y, Luo H, Feng J (2013) J Mater Sci 48:5171. doi: 10.1007/s10853-013-7303-z CrossRefADSGoogle Scholar
  26. 26.
    Arslan-Alaton I, Ferry JL (2002) Dyes Pigments 54:25CrossRefGoogle Scholar
  27. 27.
    Ei-Morsi TM, Budakowski WR, Abd-Ei-Aziz AS, Friesen KJ (2000) Environ Sci Technol 34:1018CrossRefADSGoogle Scholar
  28. 28.
    Marban G, Vu TT, Valdes-Solis T (2011) Appl Catal A 402:218CrossRefGoogle Scholar
  29. 29.
    Sohrabnezhad Sh (2011) Spectrochim Acta A 81:228CrossRefADSGoogle Scholar
  30. 30.
    Zhang T, Oyama T, Aoshima A, Hidaka H, Zhao J, Serpone N (2001) J Photochem Photobiol A 140:163CrossRefGoogle Scholar

Copyright information

© Springer Science+Business Media New York 2013

Authors and Affiliations

  • Bing Wang
    • 1
  • Chuang Li
    • 1
  • Hao Cui
    • 1
  • Jin Zhang
    • 2
  • Jianping Zhai
    • 1
  • Qin Li
    • 1
  1. 1.State Key Laboratory of Pollution Control and Resource Reuse, and School of the EnvironmentNanjing UniversityNanjingPeople’s Republic of China
  2. 2.School of Biochemical and Environmental EngineeringNanjing Xiaozhuang UniversityNanjingPeople’s Republic of China

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