Reduced graphene oxide wrapped ZnS-Ag 2 S ternary composites synthesized via hydrothermal method: Applications in photocatalyst degradation of organic pollutants

D. Amaranatha Reddy, Rory Ma, Myong Yong Choi, Tae Kyu Kim

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111 Citations (Scopus)

Abstract

In this work, we have successfully synthesized ternary nanohybrid composite, ZnS-Ag 2 S wrapped with reduced graphene oxide (RGO) using hydrothermal method without any surfactant. We have accessed the photocatalytic ability of ZnS-Ag 2 S-RGO nanocomposite using the oxidation of Rhodamine B (RhB) under simulated sunlight irradiation. The superior photocatalytic ability of ZnS-Ag 2 S-RGO compared to bare ZnS, was ascribed to an efficient charge transfer from ZnS to Ag 2 S and graphene sheets. The recyclability results also demonstrated the excellent stability and reliability of the ZnS-Ag 2 S-RGO. In addition to the excellent photocatalytic degradation properties, the synthesized ZnS-Ag 2 S-RGO nanocomposite exhibited near white light emission, which implies that careful design and control of the composition could be lead to find application in near UV-white LEDs. The present work provides new insights into the synthesis and characterizations of ternary ZnS-Ag 2 S-RGO nanocomposites and its wide applications in the environmental protection issues.

Original languageEnglish
Pages (from-to)725-735
Number of pages11
JournalApplied Surface Science
Volume324
DOIs
Publication statusPublished - 2015 Jan 1

Bibliographical note

Funding Information:
This work was financially supported by National Research Foundation of Korea ( NRF ) grants funded by the Korean government (MEST and MSIP) ( 2007-0056095 , NRF-2012K2A1A2033072 , NRF-2013S1A2A2035406 and NRF-2013R1A1A2009575 ). M.Y.C. greatly appreciates the financial supports by the Korea Ministry of Environment as “GAIA Project” (2012000550026). This work was also supported by the 2014 Post-Doc. Development Program of Pusan National University.

Publisher Copyright:
© 2014 Elsevier B.V. All rights reserved.

All Science Journal Classification (ASJC) codes

  • Chemistry(all)
  • Condensed Matter Physics
  • Physics and Astronomy(all)
  • Surfaces and Interfaces
  • Surfaces, Coatings and Films

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