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Synergistic effect of polypyrrole modified WS2 nanosheets on visible light assisted catalysis for the removal of chromium (VI) and humic acid by Nahid Tyagi; Manoj Kumar Singh; Manika Khanuja is a Materials Science article available to read on EtoBox.
What is Synergistic effect of polypyrrole modified WS2 nanosheets on visible light assisted catalysis for the removal of chromium (VI) and humic acid about?
In this work, a novel nanocomposite was synthesized by the surface modification of tungsten disulphide (WS 2 ) with polypyrrole (PPy) for the photocatalytic removal of heavy metal ions (chromium hexavalent (Cr (VI)) and natural organic contaminant (humic acid (HA)). The morphological analysis of synthesized samples was carried out using Field Emission Scanning Electron Microscopy (FESEM) which shows that PPy nanoparticles (NPs) are randomly distributed on the surface of WS 2 nanosheets (NSs). The interlayer spacing of fringe width of WS 2 NSs calculated from High Resolution Transmission Electron Microscopy (HRTEM) studies comes out to be 0.65 nm also in coherence with XRD analysis. Elemental analysis of synthesized nanocomposite was confirmed by using X-Ray Photoelectron Spectroscopy (XPS). The synthesized WP nanocomposite shown enhanced efficiencies (ɳ Cr ~98.75% and ɳ HA ~77.78%) as compared to negligible efficiency of pristine WS 2 (~15% and 16%) and PPy (~49% and 40%) for the reduction of Cr (VI) and degradation of HA, respectively. The enhanced removal efficiency of nanocomposite was attributed to decrease in the bandgap (2.03 to 1.80 eV), enhanced carrier concentrations (4.0
Who reads Synergistic effect of polypyrrole modified WS2 nanosheets on visible light assisted catalysis for the removal of chromium (VI) and humic acid?
It is typically read by researchers, students, and practitioners in Materials Science.
- Author
- Nahid Tyagi; Manoj Kumar Singh; Manika Khanuja
- Publisher
- Elsevier BV
- Published
- 2023
- Language
- EN
- Field
- Materials Science (Physical Sciences)
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