Hydrothermal synthesis of SnS2 nanocrystals for photocatalytic degradation of 2,4,6-trichlorophenol under white LED light irradiation

Kezhen Qi, Sreejith Karthikeyan, Woolcheol Kim, Faisal Al Marzouqi, Ibrahim Said Al-Khusaibi, Younghun Kim*, Rengaraj Selvaraj

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

10 Citations (Scopus)

Abstract

In this study, SnS2 nanocrystals with controlled morphology were successfully synthesized by a simple hydrothermal method using thiosemicarbazide both as a sulfur source and as a capping agent. The X-ray powder diffraction analysis confirmed the hexagonal phase of these as-prepared SnS2 nanocrystals. Morphological features were studied by field-emission scanning electron microscopy, indicating that the as-prepared SnS2 crystals were nanoparticles. The optical property was studied by ultraviolet– visible diffused reflectance spectroscopy, indicating that the bandgap of SnS2 samples is ~2.2 eV. Under white LED light irradiation (λ = 450 nm), the as-prepared SnS2 nanocrystals exhibited a high photocatalytic activity for degrading 2,4,6-trichlorophenol solution. This work suggests that SnS2 nanocrystal is a potential photocatalyst for detoxification.

Original languageEnglish
Pages (from-to)108-115
Number of pages8
JournalDesalination and Water Treatment
Volume92
DOIs
Publication statusPublished - Oct 1 2017

Keywords

  • 2,4,6-Trichlorophenol
  • Hydrothermal synthesis
  • LED light
  • Photocatalytic activity
  • SnS nanocrystals

ASJC Scopus subject areas

  • Water Science and Technology
  • Ocean Engineering
  • Pollution

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