Hostname: page-component-586b7cd67f-l7hp2 Total loading time: 0 Render date: 2024-12-01T01:30:25.917Z Has data issue: false hasContentIssue false
  • English
  • Français

Gold nanoparticles-coated chemically-reactive polymer colloids and the study of their catalytic kinetics

Published online by Cambridge University Press:  18 March 2014

Maolin Li ,
Vivian Zhong  and
Guofang Chen
Vivian Zhong
Affiliation:
Department of Chemistry, St. John’s University, 8000 Utopia Parkway, Queens, NY 11439, U.S.A
Guofang Chen*
Affiliation:
Department of Chemistry, St. John’s University, 8000 Utopia Parkway, Queens, NY 11439, U.S.A
*
*Email: [email protected]
Get access

Abstract

Raspberry-like composite spheres based on chemically-reactive poly(glycidyl methacrylate) (PGMA) colloids as the cores coated with tunable size of gold nanoparticles were synthesized via a controlled assembly method. Kinetic study of 4-nitrophenol reduction by NaBH4 in the presence of poly(allylamine hydrochloride)-modified PGMA composite with tunable size of AuNPs (PGMA@PAH@AuNPs) was demonstrated. Effects of gold nanoparticles size and PGMA colloid diameter on the reaction time, average reaction rate and average turnover frequency (TOF), order of reaction (n) and apparent rate constant (kapp) were systematically investigated. Experimental results of our study showed composites with 3.4 ± 0.9 nm AuNPs have the best catalytic efficiency with the highest reaction order and apparent rate constant. The poisoning of product 4-aminophenol on PAH-modified PGMA colloid-supported gold nanocatalysts was evaluated using 4-nitrophenol/NaBH4 reduction reaction for the reaction time, average reaction rate, average TOF, order of reaction and apparent rate constant.

Keywords

compositecatalyticnanostructure
Type
Articles
Information
MRS Online Proceedings Library (OPL) , Volume 1641: Symposium AA – Catalytic Nanomaterials for Energy and Environment , 2014 , mrsf13-1641-aa01-03
Copyright
Copyright © Materials Research Society 2014 

Access options

Get access to the full version of this content by using one of the access options below. (Log in options will check for institutional or personal access. Content may require purchase if you do not have access.)

References

REFERENCES

Shenhar, R., Norsten, T. B. and Rotello, V. M., Adv. Mater., 2005, 17, 657–669.CrossRefGoogle Scholar
Valter, B., Ram, M. K. and Nicolini, C., Langmuir, 2002, 18, 1535–1541.CrossRefGoogle Scholar
Moroz, A., J. Phys. Chem. C, 2009, 113, 21604–21610.CrossRefGoogle Scholar
Farrokhi, M., Yang, J.-K., Lee, S.-M. and Shirzad-Siboni, M., J. Environ. Health Sci. Eng. 2013, 11, 23.CrossRefGoogle Scholar
Zahn, M., J. Nanopart, Res., 2001, 3, 73–78.CrossRefGoogle Scholar
Corma, A. and Garcia, H., Chem. Soc. Rev., 2008, 37, 2096–2126.CrossRefGoogle Scholar
Leadbeater, N. E. and Marco, M., Chem. Rev., 2002, 102, 3217–3273.CrossRefGoogle Scholar
McNamara, C. A., Dixon, M. J. and Bradley, M., Chem. Rev., 2002, 102, 3275–3299.CrossRefGoogle Scholar
Haruta, M., Catal. Today, 1997, 36, 153–166.CrossRefGoogle Scholar
Yin, L. and Liebscher, J., Chem. Rev., 2007, 107, 133–173.CrossRefGoogle Scholar
Kimling, J., Maier, M., Okenve, B., Kotaidis, V., Ballot, H. and Plech, A., J. Phys. Chem. B, 2006, 110, 15700–15707.CrossRefGoogle Scholar
Gao, C., Vuong, J., Zhang, Q., Liu, Y. and Yin, Y., Nanoscale, 2012, 4, 2875–2878.CrossRefGoogle Scholar
Luo, Z., Zou, C., Syed, S., Syarbaini, L. and Chen, G., Colloid. Polym. Sci., 2012, 290, 141–150.CrossRefGoogle Scholar
Liu, Y., Li, M. and Chen, G., J. Mater. Chem. A, 2013, 1, 930–937.CrossRefGoogle Scholar
Della Pina, C., Falletta, E., Rossi, M. and Sacco, A., J. Catal., 2009, 263, 92–97.CrossRefGoogle Scholar
Li, M. and Chen, G., Nanoscale, 2013, 5, 11919–11927.CrossRefGoogle ScholarPubMed
Young, P. C., Green, S. L. J., Rosair, G. M. and Lee, A.-L., Dalton Trans., 2013, 42, 9645–9653.CrossRefGoogle Scholar