10.7508/ijnd.2016.01.004

Synthesis and characterization of visible light active S-doped TiO2 nanophotocatalyst

Show Details XML HTML
  • S. Janitabar Darzi1,
  • A. R. Mahjoub2,
  • A. Bayat2,
  1. Nuclear Science and Technology Research Institute, 11365/8486 Tehran, Iran
  2. Department of Chemistry, Tarbiat Modares University, 14115-175 Tehran, Iran

Published in Issue 2024-02-28

How to Cite

Janitabar Darzi, S., Mahjoub, A. R., & Bayat, A. (2024). Synthesis and characterization of visible light active S-doped TiO2 nanophotocatalyst. International Journal of Nano Dimension, 7(1). https://doi.org/10.7508/ijnd.2016.01.004
Crossref
Scopus
Google Scholar
Europe PMC

HTML views: 27

Abstract

S-doped and bare mesoporous TiO2 were prepared using titanium tetraisopropoxide and thiocarbamide as raw materials. Prepared materials were characterized by means of fourier transform infrared spectroscopy FT-IR, thermogravimetry-differential scanning calorimetry (TG-DSC), X-ray diffraction (XRD), UVâVis absorption spectroscopy, BrunauerâEmmettâTeller (BET) specific surface area and BarrettâJoynerâHalenda (BJH) pore size distribution analyses, scanning electron microscopy (SEM) and Energy-dispersive X-ray spectroscopy (EDX). The band gap of S-doped was estimated from UV-Vis spectroscopy data to be 2.8 eV. The specific surface area of S-doped TiO2 nanoparticles obtained via the BET method, calculated to be 181.3 m2/g and its pore size distribution curve revealed that the average diameter of the pores is 12.3 nm using BJH method. Photocatalytic efficiency of synthesized S-doped mesoporous TiO2 was tested for degradation of Congored azo dye under ultraviolet and visible lights. The results revealed that the S-doped mesoporous TiO2 is the most effective under visible light in comparison with bare one.

Keywords

  • Band gap,
  • Congored,
  • Mesoporous,
  • Photocatalyst,
  • S-doped TiO2
HTML