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Ruthenium catalysts supported on TiO2 prepared by sol–gel way for p-hydroxybenzoic acid wet air oxidation

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Abstract

The wet air oxidation of p-hydroxybenzoic acid, chosen as a model compound of olive mills wastewaters was carried out at 140 °C and 50 bar air over Ru catalysts supported on TiO2 prepared by sol–gel method. These catalysts were characterized by means of N2 adsorption–desorption, XRD and TEM. Optimization of the catalytic performances was obtained by studying some parameters such as the catalyst preparation method, the solvent evacuation way, the nature of the hydrolysis agent, the influence of the ruthenium salt used as the metal precursor (Ru(NO)(NO3)3 or Ru(acac)3) and the catalyst pretreatment. The pre-calcination of the catalyst precursor at 300 °C under oxygen, before the reduction step under hydrogen, was detrimental to the activity. The results showed that the use of nitric acid as hydrolysis agent, drying under supercritical conditions and the use of Ru(NO)(NO3)3 leads to the more efficient catalyst with high TOC abatement.

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References

  1. Hamdi M (1992) Appl Biochem Biotechnol 37:155

    Article  CAS  Google Scholar 

  2. Borja R, Alba J, Banks CJ (1997) Process Biochem 32:121

    Article  CAS  Google Scholar 

  3. Cybulski A (2007) Ind Eng Chem Res 46:4007

    Article  CAS  Google Scholar 

  4. Barbier J, Delanoë F, Jabouille F, Duprez D, Blanchard G, Insard P (1998) J Catal 177:378

    Article  CAS  Google Scholar 

  5. Besson M, Gallezot P (2005) Top Catal 33:101

    Article  CAS  Google Scholar 

  6. Béziat JC, Besson M, Gallezot P, Durecu S (1999) Ind Eng Chem Res 38:1310

    Article  Google Scholar 

  7. Minh DP, Aubert G, Gallezot P, Besson M (2007) Appl Catal B 73:236

    Article  CAS  Google Scholar 

  8. Minh DP, Gallezot P, Besson M (2007) Appl Catal B 75:71

    Article  CAS  Google Scholar 

  9. Minh DP, Gallezot P, Besson M (2006) Appl Catal B 63:68

    Article  CAS  Google Scholar 

  10. Pintar A, Besson M, Gallezot P (2001) Appl Catal B 30:123

    Article  CAS  Google Scholar 

  11. Pintar A, Besson M, Gallezot P (2001) Appl Catal B 31:275

    Article  CAS  Google Scholar 

  12. Gonzalez MD, Moreno E, Quevedo J, Ramos A (1990) Chemosphere 20:423

    Article  CAS  Google Scholar 

  13. Gernjak W, Maldonado MI, Malato S, Caceres J, Krutzler T, Glaser A, Bauer R (2004) Solar Energy 77:567

    Article  CAS  Google Scholar 

  14. Beccari M, Majone M, Riccardi C, Savarese F, Torrisi L (1999) Water Sci Technol 40:347

    Article  CAS  Google Scholar 

  15. Peres JAS, De Carvalho M, Boaventura RAR, CCosta CAV (2004) J Environ Sci Health A 39:2897

    Google Scholar 

  16. Beltran-Heredia J, Torregrosa J, Dominguez JR, Peres JA (2001) Chemosphere 42:351

    Article  CAS  Google Scholar 

  17. Rivas FJ, Beltran FJ, Gimeno O, Acedo B (2001) Chem Eng Technol 24:415

    Article  CAS  Google Scholar 

  18. Triki M, Minh DP, Ksibi Z, Ghorbel A, Gallezot P, Besson M (2006) Stud Surf Sci Catal 162:609

    Article  CAS  Google Scholar 

  19. Brinker CJ, Scherer GW (1990) Sol–gel science: the physics and chemistry of sol–gel processing. Academic Press, San Diego

    Google Scholar 

  20. Schneider M, Baiker A (1997) Catal Today 25:339

    Article  Google Scholar 

  21. Sing KSW, Everett DH, Haul RAW, Moscou L, Pierotti RA, Rouquerol J, Siemieniewska T (1985) Pure Appl Chem 57:603

    Article  CAS  Google Scholar 

Download references

Acknowledgments

We are indebted to the European Union for financial support (contract ICA3-CT2002-10034). Guillaume Aubert from IRCELYON is gratefully acknowledged for the TEM experiments.

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Authors and Affiliations

  1. Laboratoire de Chimie des Matériaux et Catalyse (LCMC), Département de Chimie, Faculté des Sciences de Tunis, Campus Universitaire, 2092 El Manar, Tunis, Tunisie

    Mohamed Triki, Zouhaier Ksibi & Abdelhamid Ghorbel

  2. Institut de Recherches sur la Catalyse et l’Environnement de Lyon (IRCELYON), CNRS UMR5256/Université Lyon 1, 2 Ave A. Einstein, 69626, Villeurbanne Cedex, France

    Doan Pham Minh & Michèle Besson

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  1. Mohamed Triki
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  2. Doan Pham Minh
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  3. Zouhaier Ksibi
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  4. Abdelhamid Ghorbel
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  5. Michèle Besson
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Correspondence to Mohamed Triki.

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Triki, M., Minh, D.P., Ksibi, Z. et al. Ruthenium catalysts supported on TiO2 prepared by sol–gel way for p-hydroxybenzoic acid wet air oxidation. J Sol-Gel Sci Technol 48, 344–349 (2008). https://doi.org/10.1007/s10971-008-1827-8

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  • DOI: https://doi.org/10.1007/s10971-008-1827-8

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