Article
Licensed
Unlicensed Requires Authentication

Optimization of Parameters for the Preparation of Au/TiO2 with Photodegradation of NPE-10 in Aqueous Solution

  • , and
Published/Copyright: April 11, 2013
Become an author with De Gruyter Brill
Submit Manuscript Author Information
Tenside Surfactants Detergents
From the journal Tenside Surfactants Detergents Volume 48 Issue 3

Abstract

The degradation in aqueous solution of nonionic surfactant, nonylphenyl poly(oxyethylene)ethers (NPE-10), which was photocatalyzed by Au/TiO2 nanoparticles has been studied. The particles were obtained using modified deposition-precipitation with Urea (DP Urea). The Taguchi method was implemented successfully to optimize the photoactivity for Au/TiO2 photocatalyst. The optimized catalyst was characterized by XRD, BET, TEM, XPS and UV-visible absorption spectra techniques. It was found that Au3+/Ti4+ molar ratio was the main parameter having significant effect on photocatalytic activity. Under optimal conditions, the observed Au nano-particle size and distributions indicate, that smaller gold nanoparticles (∼1.8 nm diameter) were obtained, and the existing of Au particles promote the photoadsorption of oxygen on the surface of photocatalysts. Both are responsible for the significantly enhanced catalytic activity of commercial TiO2 (pure P-25) toward the photodegradation of NPE-10-probably by increasing the rate of production of separated electrons and holes.

Kurzfassung

Es wurde der photokatalytische Abbau des nichtionischen Tensids Nonylphenylpolyoxyethyleether (NPE-10) in wässriger Lösung mittels Au/TiO2-Nanopartikeln, die durch eine modifizierte „Deposition-Precipitation-Methode“ mit Harnstoff (DP-Urea) erhalten wurden, untersucht. Die Taguchi-Methode wurde erfolgreich umgesetzt zur Optimierung der Photoaktivität des Au/TiO2-Photokatalysators. Der optimierte Photokatalysator wurde charakterisiert mit XRD, BET, TEM, XPS und UV-UVis-Spektrometrie. Es wurde gefunden, dass das molare Verhältnis Au3+/Ti4+ der hauptsächliche Parameter ist, der einen signifikanten Effekt auf die photokatalytische Aktivität hat. Die beobachteten Gold-Nanopartikelgrößen und -verteilung weisen daraufhin, dass unter den optimalen Bedingungen kleinere Gold-Nanopartikel von ∼1.8 nm Durchmesser erhalten werden, und dass die vorhandenen Goldnanopartikel die Photoadsorption von Sauerstoff auf der Oberfläche des Photokatalysators begünstigen. Beide sind verantwortlich für die signifikant erhöhte katalytische Aktivität des kommerziell erhältlichen TiO2 (reines P-25) beim Photoabbau von NPE-10 – wahrscheinlich aufgrund der zunehmenden Geschwindigkeit bei der Entstehung von getrennten Elektronen und Löchern.

Key words:: Au/TiO2; deposition-precipitation with urea (DP urea); taguchi method; visible light response; NPE-10 photodegradation; nanoparticle
Stichwörter:: Au/TiO2; „Deposition-Precipitation-Methode“ mit Harnstoff; Taguchi-Methode; Respons des sichtbaren Lichts; Photokatalytischer Abbau von NPE-10; Nanopartikel
∗ Zhi-ping Du, China Research Institute of Daily Chemical Industry, Taiyuan 030001, Shanxi Province, P.R. China, Tel.: +863514084691, Fax: +863514040802. E-Mail:

Chun-Bo Feng is reading for Ph.D. degree at South China University of Technology. His research fields centred at the preparation of nanocrystal TiO2 and the study of photocatalytic degradation of surfactants.

Li Chen is a director of School of Chemistry and Chemical Engineering, South China University of Technology, his research interesting focus on treatment and disposal of solid, liquid and gaseous hazardous wastes.

Zhi-Ping Du is a director of Shanxi Province surfactant key laboratory, she currently also works at China Research Institute of Daily Chemical Industry and has been engaged in surfactant and nanocrystal TiO2 researches.

References

1. Du, Z. P., Feng, C. B. and Li, Q. X.: Colloid Surface A315 (2008) 254. 10.1016/j.colsurfa.2007.08.028Search in Google Scholar

2. Chen, X. B. and Mao, S. S.: Chem. Rev.107 (2007) 2891. 10.1021/cr0500535Search in Google Scholar

3. Lee, J. and Choi, W. Y.: Environ. Sci. Technol.38 (2004) 4026. 10.1021/es034954bSearch in Google Scholar

4. Choi, W. Y., Termin, A. and Hoffmann, M. R.: J. Phys. Chem.98 (1994) 13669. 10.1021/j100102a038Search in Google Scholar

5. Zhao, W., Ma, W. H. and Chen, C. C.: J. Am. Chem. Soc.126 (2004) 4782. 10.1021/ja0396753Search in Google Scholar

6. Dawson, A. and Kamat, P. V.: J. Phys. Chem. B105 (2001) 960. 10.1021/jp0033263Search in Google Scholar

7. Tsubota, S., Haruta, M. and Kobayashi, T.: Stud. Surf. Sci. Catal.63 (1991) 695. 10.1016/S0167-2991(08)64634-0Search in Google Scholar

8. Tsubota, S., Cunningham, D. A. H. and Haruta, M.: Stud. Surf. Sci. Catal.91 (1995) 227. 10.1016/S0167-2991(06)81759-3Search in Google Scholar

9. Carp, O., Huisman, C. L. and Reller, A.: Prog. Solid. State. Ch.32 (2004) 33. 10.1016/j.progsolidstchem.2004.08.001Search in Google Scholar

10. Haruta, M., Kageyama, H. and Kamijo, N.: Stud. Surf. Sci. Catal.44 (1989) 33. 10.1016/S0167-2991(09)61278-7Search in Google Scholar

11. Zanella, R., Giorgio, S., Henry, C. R. and Louis, C.: J. Phys. Chem. B106 (2002) 7634. 10.1021/jp0144810Search in Google Scholar

12. Haruta, M.: In Environmental Catalysis (1994) 420.Search in Google Scholar

13. Dekkers, M. A. P., Lippits, M. J. and Nieuwenhuys, B. E.: Catal. Lett.56 (1998) 195. 10.1023/A:1019037902776Search in Google Scholar

14. Butler, C.: Computer Integrated Manufacturing Systems5 (1992) 246. 10.1016/0951-5240(92)90037-DSearch in Google Scholar

15. Murphy, P. J., Stevens, G. and LaGrange, M. S.: Cosmochim, Acta64 (2000) 479. 10.1016/S0016-7037(99)00293-8Search in Google Scholar

16. Li, X. Z. and Li, F. B.: Environ. Sci. Technol.35 (2001) 2381. 10.1021/es001752wSearch in Google Scholar

17. Orlov, A. and Jefferson, D. A.: Catalysis letters92 (2004) 41. 10.1023/B:CATL.0000011084.43007.80Search in Google Scholar

18. Li, F. B. and Li, X. Z.: Appl. Catal. A228 (2002) 15. 10.1016/S0926-860X(01)00953-XSearch in Google Scholar

19. Hayashi, T., Tanaka, K. and Haruta, M.: J. Catal.178 (1998) 566. 10.1006/jcat.1998.2157Search in Google Scholar

20. Deki, S., Ko, H. Y. Y. and Fujita, T.: Eur. Phys. J. D16 (2001) 325. 10.1007/s100530170121Search in Google Scholar

21. Hagfeldt, A. and Graetzel, M.: Chem. Rev.95 (1995) 49. 10.1021/cr00033a003Search in Google Scholar

22. Jing, L. Q., Xu, Z. L. and Sun, J. X.: Appl. Surf. Sci.180 (2001) 308. 10.1016/S0169-4332(01)00365-8Search in Google Scholar

23. Koudelka, M. and Monnier, A.: J. Mol. Catal.25 (1984) 295. 10.1016/0304-5102(84)80052-8Search in Google Scholar

24. Kim, K. S., Baitinger, W. E. and Amy, J. W.: J. Elect. Spectros.5 (1974) 351. 10.1016/0368-2048(74)85023-1Search in Google Scholar

Received: 2010-11-23
Published Online: 2013-04-11
Published in Print: 2011-05-01

© 2011, Carl Hanser Publisher, Munich

Articles in the same Issue

  1. Contents/Inhalt
  2. Contents
  3. Abstracts
  4. Abstracts
  5. Application
  6. Impact of Surfactants on the Efficacy of Iron Oxide Dispersants
  7. Influence of Surfactants on the Morphologies of CdS Nanorods
  8. Optimization of Parameters for the Preparation of Au/TiO2 with Photodegradation of NPE-10 in Aqueous Solution
  9. Synthesis
  10. Synthesis of Disk-Like and Flower-Like ZnO Nanostructures by Sodium Dodecyl Sulfate-Assisted non-Basic Solution Process
  11. Cleaning Technology
  12. Using Fabric Softeners, Drying and Ironing in Germany
  13. Physical Chemistry
  14. AOT-Vesicles Produced at the Oil-Water Interface
  15. Interactions between Dyes and Cetyl-trimethyl Ammonium Bromide
  16. Effects of Electrolytes on Interfacial and Micelle Properties of C.I. Reactive Orange 16 – Dodecylpyridinium Chloride Binary System
  17. Novel Surfactants
  18. Bis(Diquaternary Ammonium)Salts: Synthesis, Effect of Spacer on Surface Activities and Aggregation Properties of Reactive Red 198 in Aqueous – Surfactants Solutions
  19. Research Group Portrait
  20. Colloid and Interfacial Chemistry at Stuttgart University
https://doi.org/10.3139/113.110122
Keywords for this article
Au/TiO2; deposition-precipitation with urea (DP urea); taguchi method; visible light response; NPE-10 photodegradation; nanoparticle

Articles in the same Issue

  1. Contents/Inhalt
  2. Contents
  3. Abstracts
  4. Abstracts
  5. Application
  6. Impact of Surfactants on the Efficacy of Iron Oxide Dispersants
  7. Influence of Surfactants on the Morphologies of CdS Nanorods
  8. Optimization of Parameters for the Preparation of Au/TiO2 with Photodegradation of NPE-10 in Aqueous Solution
  9. Synthesis
  10. Synthesis of Disk-Like and Flower-Like ZnO Nanostructures by Sodium Dodecyl Sulfate-Assisted non-Basic Solution Process
  11. Cleaning Technology
  12. Using Fabric Softeners, Drying and Ironing in Germany
  13. Physical Chemistry
  14. AOT-Vesicles Produced at the Oil-Water Interface
  15. Interactions between Dyes and Cetyl-trimethyl Ammonium Bromide
  16. Effects of Electrolytes on Interfacial and Micelle Properties of C.I. Reactive Orange 16 – Dodecylpyridinium Chloride Binary System
  17. Novel Surfactants
  18. Bis(Diquaternary Ammonium)Salts: Synthesis, Effect of Spacer on Surface Activities and Aggregation Properties of Reactive Red 198 in Aqueous – Surfactants Solutions
  19. Research Group Portrait
  20. Colloid and Interfacial Chemistry at Stuttgart University
Downloaded on 5.4.2026 from https://www.degruyterbrill.com/document/doi/10.3139/113.110122/html
Scroll to top button