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Synthesis and catalysis of Ag nanoparticles trapped into temperature-sensitive and conductive polymers

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Abstract

Poly(styrene-co-N-isopropylacrylamide)/poly(N-isopropylacrylamide-co-methacrylic acid)/polypyrrole-silver [P(St-NIPAM)/P(NIPAM-co-MAA)/PPy-Ag] composite microgels were synthesized via a one-step redox polymerization of silver ammonia ions and pyrrole monomer at room temperature, using the core–shell P(St-NIPAM)/P(NIPAM-co-MAA) thermo-sensitive polymer microgels as templates. The structure, component, and properties of the as-prepared composite microgels have been characterized by transmission electron microscope, Fourier-transform infrared spectroscopy, X-ray diffraction, thermogravimetric analysis, and UV–Vis spectrophotometer. The results indicate that the size and the dispersity of the formed PPy-Ag nanocomposite particles can be regulated by adjusting the initial concentration of the precursors. The catalytic activity for the reduction of 4-nitrophenol was regulated by varying the environment temperature. Meanwhile, the higher catalytic activity is contributed to the electron transfer from the conductive polymer PPy to the Ag nanoparticles in the polymer material matrix.

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Acknowledgements

This work was supported by the National Natural Science Foundation of China (21173141), Key Industry Project of Shaanxi Province of China (2011K08-14), Program for Changjiang Scholars and Innovative Research Team in University of China (IRT1070), and Undergraduate Innovative Program of Shaanxi Normal University, China (201210781064).

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Authors and Affiliations

  1. Key Laboratory of Applied Surface and Colloid Chemistry, Ministry of Education, Shaanxi Normal University, Xi’an, 710062, People’s Republic of China

    Chunxia Zhang, Chao Li, Yanyan Chen & Ying Zhang

  2. School of Chemistry and Chemical Engineering, Shaanxi Normal University, 199 South Changan Road, Xi’an, 710062, People’s Republic of China

    Chunxia Zhang, Chao Li, Yanyan Chen & Ying Zhang

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  1. Chunxia Zhang
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  2. Chao Li
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  4. Ying Zhang
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Correspondence to Ying Zhang.

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Zhang, C., Li, C., Chen, Y. et al. Synthesis and catalysis of Ag nanoparticles trapped into temperature-sensitive and conductive polymers. J Mater Sci 49, 6872–6882 (2014). https://doi.org/10.1007/s10853-014-8389-7

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  • DOI: https://doi.org/10.1007/s10853-014-8389-7

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