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<p>Sulfur/MWCNT composites were synthesized using the solution casting method and characterized by using various techniques such as Raman spectroscopy, UV–Visible spectroscopy, Photoluminescence spectroscopy (PL) and Energy dispersive X-ray (EDX) analysis. The Rietveld refinement of composites has confirmed the phase of sulfur. Characteristic Raman spectral features validate the incorporation of MWCNT. The increased concentration of MWCNT in sulfur slightly narrowed the optical band gap. EDX spectra confirmed the elemental composition of synthesized composites. The composites S95% MWCNT5% and S99% MWCNT1% have been implemented into the sunlight–assisted photodegradation process in the presence of methylene blue (MB) and methyl orange (MO) dyes. The pseudo-first reaction kinetic model was applied to the observed absorbance responses. Using sulfur-based MWCNT composites, degradation efficiencies of (33–37)% for methylene blue and (14–19)% for methyl orange were obtained.</p>

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Comparative insights into photo-degradation of methylene blue and methyl orange dyes utilizing Sulfur/ MWCNT nanocomposites

  • 期刊论文

  • 发表日期：

    2026年6月17日

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  • Karishma Jain,
  • Deepika Maan,
  • Ashish Kumar,
  • Banwari Lal Choudhary,
  • Pradeep Reddy Vanga,
  • Sushil Kumar Jain,
  • Balram Tripathi

摘要

Sulfur/MWCNT composites were synthesized using the solution casting method and characterized by using various techniques such as Raman spectroscopy, UV–Visible spectroscopy, Photoluminescence spectroscopy (PL) and Energy dispersive X-ray (EDX) analysis. The Rietveld refinement of composites has confirmed the phase of sulfur. Characteristic Raman spectral features validate the incorporation of MWCNT. The increased concentration of MWCNT in sulfur slightly narrowed the optical band gap. EDX spectra confirmed the elemental composition of synthesized composites. The composites S95% MWCNT5% and S99% MWCNT1% have been implemented into the sunlight–assisted photodegradation process in the presence of methylene blue (MB) and methyl orange (MO) dyes. The pseudo-first reaction kinetic model was applied to the observed absorbance responses. Using sulfur-based MWCNT composites, degradation efficiencies of (33–37)% for methylene blue and (14–19)% for methyl orange were obtained.