Advances in materials Research

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Synthesis, characterization and potential applications of Ag@ZnO nanocomposites with S@g-C3N4

  • Ahmad, Naveed (Department of Chemistry, University of Management and Technology) ;
  • Javed, Mohsin (Department of Chemistry, University of Management and Technology) ;
  • Qamar, Muhammad A. (Department of Chemistry, University of Management and Technology) ;
  • Kiran, Umbreen (Department of Chemistry, University of Management and Technology) ;
  • Shahid, Sammia (Department of Chemistry, University of Management and Technology) ;
  • Akbar, Muhammad B. (National Center for Nanoscience Technology (NCNST)) ;
  • Sher, Mudassar (Department of Chemistry, University of Management and Technology) ;
  • Amjad, Adnan (Department of Chemistry, University of Management and Technology)
  • Received : 2019.09.16
  • Accepted : 2022.03.23
  • Published : 2022.09.25
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Abstract

It includes the synthesis of pristine ZnO nanoparticles and a series of Ag-doped zinc oxide nanoparticles was carried out by reflux method by varying the amount of silver (1, 3, 5, 7 and 9% by mol.). The morphology of these nanoparticles was investigated by SEM, XRD and FT-IR techniques. These techniques show that synthesized particles are homogenous spherical nanoparticles having an average particle size of about 50-100 nm along with some agglomeration. The photocatalytic activity of the ZnO nanoparticles and Ag doped ZnO nanoparticles were investigated via photodegradation of methylene blue (MB) as a standard dye. The data from the photocatalytic activity of these nanoparticles show that 7% Ag-doped ZnO nanoparticles exhibit much enhanced photocatalytic activity as compared to pristine ZnO nanoparticles and other percentages of Ag-doped ZnO nanoparticles. Furthermore, 7% Ag-doped ZnO was made composites with sulfur-doped graphitic carbon nitride by physical mixing method and a series of nanocomposites were made (3.5, 7.5, 25, 50, 75% by weight). It was observed that the 25% composites exhibited better photocatalytic performance than pristine S-g-C 3 N 4 and pure 7% Ag-doped ZnO. Tauc's plot also supports the photodegradation results.

Keywords

References

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