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    • Fulltext

       

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      Permanent link:
      https://www.ias.ac.in/article/fulltext/boms/045/0045

    • Keywords

       

      Core/shell structure; PS/PANI/CeO$_2$; hybrids; photocatalytic activity; photodegradation.

    • Abstract

       

      Herein, we report the in-situ crystallization of CeO$_2$ nanoparticles (NPs) onto the polyaniline (PANI)-modified polystyrene (PS) latexes via a two-step approach. The resulting polymer/CeO$_2$ products were characterized in terms of X-ray diffraction, scanning electron microscopy, transmission electron microscopy, thermogravimetry, UV–Vis spectra, Fourier-transform infrared spectroscopy and photoluminescence (PL) spectroscopy. The core/shell structured polymer/CeO$_2$ composites were utilized as photocatalysts for the degradation of methylene blue dye molecules in aqueous solution. The photocatalytic activity of PS/PANI/CeO$_2$ ternary hybrids under UV light irradiation was evaluated and compared with that of PS/CeO$_2$ binary composites. By comparison with PS/CeO$_2$, UV–Vis and PL spectra results revealed that the PS/PANI/CeO$_2$ exhibited a narrowed bandgap, a broadened light response range and an improved separation efficiency of photogenerated electron–hole pairs, which contributed to enhancement of the photocatalytic activity. As expected, the tri-layer PS/PANI/CeO$_2$ hybrids exhibited relative-high photodegradation efficiency compared to the PS/CeO$_2$ ones and commercial CeO$_2$ NPs, which might be attributed to the synergic effect between CeO$_2$ and PANI. The provided data indicated that the developed tri-layer PS/PANI/CeO$_2$ hybrids exhibited application potentials in photodegradation towards wastewater containing organic dyes.

    • Author Affiliations

       

      YUE CHEN1 TIANYU WANG2 JIE PAN1 MENGHAN WANG1 AILIAN CHEN2 YANG CHEN1

      1. School of Materials Science and Engineering, Changzhou University, Jiangsu 213164, People’s Republic of China
      2. School of Mechanical Engineering, Changzhou University, Jiangsu 213164, People’s Republic of China

    • Dates

       
      Published
      2 March 2022
      Manuscript received
      4 August 2021
      Accepted
      19 November 2021
      Final version published online
      2 March 2022

  • Bulletin of Materials Science | News

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    • Editorial Note on Continuous Article Publication

      Posted on July 25, 2019

      Click here for Editorial Note on CAP Mode

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