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Controlled synthesis of Ag-doped CuO nanoparticles as a core with poly(acrylic acid) microgel shell for efficient removal of methylene blue under visible light

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Abstract

Nowadays, constructing a narrow bandgap nanocomposite photocatalyst that can degrade contamination under visible light is critical but challenging. In this report, poly (acrylic acid) microgel (PAA) based nanocomposites (Ag@CuO/PAA NC) were constructed via free radical solution polymerization by varying the concentration of silver-doped copper oxide nanoparticles (Ag@CuO NPs) from 0 to 12%. As prepared Ag@CuO and Ag@CuO/PAA were characterized by X‐ray diffraction spectroscopy, scanning electron microscopy, transmission electron microscopy, energy dispersive X-ray and X-ray photoelectron spectroscopy. The size of Ag@CuO NPs was found to be 30–50 nm. The photocatalytic activity of CuO is increased by Ag doping and C3 NPs show the best photodegradation of methylene blue (MB). Then, 4% of Ag@CuO nanoparticles were incorporated into PAA microgel, the resultant nanocomposite showed a drastic increase in photodegradation of MB. Ag@CuO/PAA NC completely degraded dye in only 30 min which was degraded up to 65% in 60 min. by Ag@CuO NPs. The successful combination of PAA with Ag@CuO boosts the photocatalytic activity because microgel provides a large surface to adsorb pollutants. Ag@CuO/PAA NC reused successfully for photodegradation of dye due to the recycling ability of microgels. This study gives a good insight into planning a significant visible‐light‐driven photocatalyst for environmental remediation.

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Acknowledgements

The authors gratefully acknowledge the support received for this research work from the Natural Science Foundation of Guangdong Province (No. 2018A030313859), the Major Project of Fundamental and Application Research of the Department of Education of Guangdong Province (No. 2017KZDXM079), the Natural Science Foundation of Huizhou University (Nos. 20180927172750326, HZU201714 and HZU201906), Department of Chemistry, University of Management & Technology, Lahore-54770, Pakistan, and Korean Research Fellowship Program through the National Research Foundation of Korea (NRF), Korea, funded by the Ministry of Science and ICT (Grant No. NRF-2019H1D3A1A01102931).

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  1. Shahid Iqbal and Mohsin Javed have contributed equally to this work.

Authors and Affiliations

  1. School of Chemistry and Materials Engineering, Huizhou University, Huizhou, 516007, Guangdong, China

    Shahid Iqbal & Hao Li

  2. Department of Chemistry, School of Science, University of Management & Technology, Lahore, 54770, Pakistan

    Mohsin Javed, Muhammad Azam Qamar, Madiha Ahmad & Naveed Ahmad

  3. Department of Transdisciplinary Studies, Graduate School of Convergence Science and Technology, Seoul National University, Seoul, 16229, South Korea

    Ali Bahadur

  4. Department of Chemistry, Government Postgraduate College Samanabad, Faisalabad, 38000, Pakistan

    Muhammad Shoaib

  5. Department of Chemistry, Balochistan University of Information Technology, Engineering and Management Sciences, Quetta, Pakistan

    Muhammad Raheel

  6. National Center for Nanoscience Technology (NCNST) No. 11, Zhong Guan Cun Bei Yitiao, Beijing, 100190, People’s Republic of China

    Muhammad Bilal Akbar

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Iqbal, S., Javed, M., Bahadur, A. et al. Controlled synthesis of Ag-doped CuO nanoparticles as a core with poly(acrylic acid) microgel shell for efficient removal of methylene blue under visible light. J Mater Sci: Mater Electron 31, 8423–8435 (2020). https://doi.org/10.1007/s10854-020-03377-9

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