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Ag quantum dot/montmorillonite composites with fluorescent properties: an efficient catalyst

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Abstract

For the first time, size-controllable Ag quantum dots (QDs) with fluorescent properties were in situ synthesized at room temperature without any external reducing agents. The composites were obtained with very fine Ag QDs of 2–5 nm spread on the exfoliated montmorillonite in order to improve the catalytic activity by exposing a higher surface area of Ag. 4-nitrophenol (4-NP) was used to investigate the catalytic activity of the Ag-QDs/OMMT composites by monitoring UV–Vis spectroscopy. The best catalytic efficiency was observed by a pseudo-first-order rate constant in the case of Ag-QDs/OMMT composites with a rate constant of 0.04316 s−1.

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Acknowledgements

This work is grateful to the support of the National Natural Science Foundation of China (21367022, 51662036); Yangtze River scholar research project of Shihezi University(CJXZ201401) and the Bingtuan Innovation Team in Key Areas (2015BD003).

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Author notes

  1. Guihua Meng and Xiaoyuan Zhang have contributed equally to this work.

Authors and Affiliations

  1. School of Chemistry and Chemical Engineering/Key Laboratory for Green Processing of Chemical Engineering of Xinjiang Bingtuan/Key Laboratory of Materials-Oriented Chemical Engineering of Xinjiang Uygur Autonomous Region/Engineering Research Center of Materials-Oriented Chemical Engineering of Xinjiang Bingtuan, Shihezi University, Shihezi, 832003, Xinjiang, People’s Republic of China

    Guihua Meng, Xiaoyuan Zhang, Chang Liu, Jianning Wu, Xuhong Guo & Zhiyong Liu

  2. State Key Laboratory of Chemical Engineering, East China University of Science and Technology, Shanghai, 200237, People’s Republic of China

    Xuhong Guo

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  1. Guihua Meng
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  2. Xiaoyuan Zhang
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  3. Chang Liu
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  4. Jianning Wu
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  5. Xuhong Guo
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Correspondence to Zhiyong Liu.

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Meng, G., Zhang, X., Liu, C. et al. Ag quantum dot/montmorillonite composites with fluorescent properties: an efficient catalyst. Res Chem Intermed 43, 7137–7145 (2017). https://doi.org/10.1007/s11164-017-3063-8

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  • DOI: https://doi.org/10.1007/s11164-017-3063-8

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