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    • Keywords


      Nanocomposites; graphene nanoplatelets; photocatalysis; optical bandgap; electron–hole recombination.

    • Abstract


      Addressing the ecological issues through sunlight-driven photocatalytic oxidation is a challenging and exciting theme. Therefore, different kinds of photo-active materials have been designed so far to tackle the problem of wastewater pollution. In this study, multilayered graphene with platelets morphology is integrated with CeO$_2$ nanoparticles (NPs) to design GNPs/CeO$_2$ (GNPs: CeO$_2$ = 1:3, 1:1 and 3:1) nanocomposites (NCs) using ultrasonic method. The physical properties of CeO$_2$ have been tuned by varying the loading content of GNPs. These NCs have been characterized for their physico-chemical properties, which confirmed the formation of the NCs with porous morphology, tuned bandgap and enhanced photocatalytic characteristics. The GNPs/CeO$_2$ NCs have displayed considerably enhanced capability to decompose methylene blue as compared to the pristine CeO$_2$ NPs. The improvement in photodegradation activity of the NC can be attributed to the tuned bandgap and effective transport of photoelectrons in the conducting channels providedby GNPs in the structure. GNPs/CeO$_2$ NCs can be auspicious photocatalyst for industrial wastewater treatment.

    • Author Affiliations



      1. Department of Physics, Quaid-i-Azam University, Islamabad 45320, Pakistan
      2. Department of Physics, Islamia College University, Peshawar 25120, Pakistan
      3. Punjab Tianjin University of Technology, Lahore 54770, Pakistan
      4. National Center for Physics (NCP), Quaid-i-Azam University, Islamabad 45320, Pakistan
    • Dates

  • Bulletin of Materials Science | News

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      Prof. Surajit Dhara — School of Physics, University of Hyderabad, Hyderabad
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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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