Catalysis Letters

, Volume 121, Issue 3–4, pp 226–233 | Cite as

Structure Sensitivity of Nano-structured CdS/SBA-15 Containing Au and Pt Co-catalysts for the Photocatalytic Splitting of Water

  • Puja S. Lunawat
  • Rajiv Kumar
  • Narendra M. GuptaEmail author


Photocatalysts containing nanocrystallites of cadmium sulphide dispersed in the channels of mesoporous silicate SBA-15 exhibited enhanced activity for visible-light mediated splitting of water, as compared to bulk CdS. Whereas the incorporation of 1 wt.% Pt co-catalyst in CdS/SBA-15 led to a substantial increase in H2 yield, Au at similar loading resulted in marginally decreased activity. The results indicate that the photocatalytic activity of CdS crystallites is structure sensitive. Similarly, the role of a noble metal may be associated with the particle size dependent micro-structural features, rather than its electronic properties such as the work function or the heat of adsorption of reactant or product molecules.


Nano-structured cadmium sulphide Photocatalysis Structure sensitivity Splitting of water Role of noble metal co-catalyst 



NMG thanks CSIR for a research grant under the Emeritus Scientist scheme. Authors thank Mr. Mahesh Kadgaonkar for helping in manuscript preparation.


  1. 1.
    Fujishima A, Honda K (1972) Nature (London) 238:37CrossRefGoogle Scholar
  2. 2.
    Beydoun D, Amal R, Low G, McEvoy S, (1999) J Nanopart Res 1:439CrossRefGoogle Scholar
  3. 3.
    Chen X, Mao S (2007) Chem Rev 107:2891CrossRefGoogle Scholar
  4. 4.
    Xu Y, Langford CH (1995) J Phys Chem 99:11501CrossRefGoogle Scholar
  5. 5.
    Hsien Y–H, Chang C-F, Cheng Y–H, Cheng S (2001) Appl Catal B: Environ 31:241CrossRefGoogle Scholar
  6. 6.
    Reddy EP, Davydov L, Smirniotis PG (2002) J Phys Chem B 106:3394CrossRefGoogle Scholar
  7. 7.
    Gies H, Grabowski S, Bandyopadhyay M, Grunert W, Tkachenko OP, Klementiev KV, Birkner A (2003) Micropor Mesopor Mater 60:31CrossRefGoogle Scholar
  8. 8.
    Adams WA, Bakker MG, Macias T, Jefcoat IA (2004) J Hazardous Mater B112:253CrossRefGoogle Scholar
  9. 9.
    López-Muňoz M-J, van Grieken R, Aguado J, Marugán J (2005) Catal Today 101:307CrossRefGoogle Scholar
  10. 10.
    Bhattacharya K, Tripathi AK, Dey GK, Gupta NM (2005) J Nanosci Nanotechnol 5:790CrossRefGoogle Scholar
  11. 11.
    Bhattacharya K, Varma S, Kumar D, Gupta NM (2005) J Nanosci Nanotechnol 5:797CrossRefGoogle Scholar
  12. 12.
    Kumar D, Gupta NM (2005) Catal Surv Asia 9:35CrossRefGoogle Scholar
  13. 13.
    Lunawat PS, Senapati S, Kumar R, Gupta NM (2007) Int J Hydrogen Energy 32:2784CrossRefGoogle Scholar
  14. 14.
    Kiwi J, Gratzel M (1979) Nature 281:657CrossRefGoogle Scholar
  15. 15.
    Hirai T, Nanda M, Komasawa I (2003) J. Colloid Interface Sci 268:394CrossRefGoogle Scholar
  16. 16.
    Zhao D, Huo Q, Feng J, Chmelka B, Stucky G (1998) J Am Chem Soc 120:6024CrossRefGoogle Scholar
  17. 17.
    Lin C-S, Khan MR, Lin SD (2006) J Colloid Interface Sci 299:678CrossRefGoogle Scholar
  18. 18.
    Kundu M, Khosravi AA, Kulkarni SK (1997) J Mater Sci 32:245CrossRefGoogle Scholar
  19. 19.
    Choudhary TV, Goodman DW (2002) Top Catal 21:25CrossRefGoogle Scholar
  20. 20.
    Haruta M (1997) Catal Today 36:153CrossRefGoogle Scholar
  21. 21.
    Rao CNR, Kulkarni GU, Thomas PJ, Edwards PP (2002) Chem Eur J 8:29CrossRefGoogle Scholar
  22. 22.
    Somorjai GA (1994) Surf Sci 299-300:849CrossRefGoogle Scholar
  23. 23.
    Zhang Z, Wang CC, Zakaria R, Ying JY (1998) J Phys Chem B 102:10871CrossRefGoogle Scholar
  24. 24.
    Kominami H, Muratami S, Kato J, Kera Y, Ohtani B (2002) J Phys Chem B 106:10501CrossRefGoogle Scholar
  25. 25.
    Kamat PV, Flumiani M, Dawson A (2002) Colloids Surf A 202:269CrossRefGoogle Scholar
  26. 26.
    Nosaka Y, Norimatsu K, Miyama H (1984) Chem Phys Lett 106:128CrossRefGoogle Scholar
  27. 27.
    Subramanian V, Wolf E, Kamat PV (2001) J Phys Chem B 105:11439CrossRefGoogle Scholar
  28. 28.
    Satish M, Viswanathan B, Viswanath RP (2006) Int J Hydrogen Energy 31:891CrossRefGoogle Scholar
  29. 29.
    Bond GC, Thompson DT (2000) Gold Bull 33:41Google Scholar
  30. 30.
    Rioux RM, Song H, Hoefelmeyer JD, Yang P, Somorjai GA (2005) J Phys Chem B 109:2192CrossRefGoogle Scholar
  31. 31.
    Lide DR (2005) CRC handbook of chemistry and physics, 85th edn. CRC Press, Boca Raton, pp 12–130Google Scholar
  32. 32.
    Toyoshima I, Somorjai GA (1979) Heat of hydrogen and oxygen adsorption. Catal Rev Sci Eng 19:105CrossRefGoogle Scholar
  33. 33.
    Bodé DD Jr (2007) In: Hirschfelder JO, Henderson D (ed) Advances in chemical physics: chemical dynamics, vol 21. Wiley Inter Science, p 361Google Scholar

Copyright information

© Springer Science+Business Media, LLC 2007

Authors and Affiliations

  • Puja S. Lunawat
    • 1
  • Rajiv Kumar
    • 1
  • Narendra M. Gupta
    • 1
    Email author
  1. 1.Catalysis DivisionNational Chemical laboratoryPuneIndia

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