Journal
FRONTIERS OF MATERIALS SCIENCE
Volume 10, Issue 4, Pages 385-393Publisher
HIGHER EDUCATION PRESS
DOI: 10.1007/s11706-016-0361-9
Keywords
ZnS/rGO nanocomposites; graphene; photocatalytic performance; water treatment; green nanotechnology
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Funding
- Islamic Azad University (I.A.U.), Masjed-Soleiman Branch
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ZnS/graphene nanocomposites with different graphene concentrations (5, 10 and 15 wt.%) were synthesized using L-cysteine as surfactant and graphene oxide (GO) powders as graphene source. Excellent performance for nanocomposites to remove methylene blue (MB) dye and hexavalent chromium (Cr(VI)) under visible-light illumination was revealed. TEM images showed that ZnS NPs were decorated on GO sheets and the GO caused a significant decrease in the ZnS diameter size. XRD patterns, XPS and FTIR spectroscopy results indicated that GO sheets changed into reduced graphene oxide (rGO) during the synthesis process. Photocurrent measurements under a visible-light source indicated a good chemical reaction between ZnS NPs and rGO sheets.
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