Photocatalytic degradation of phenol in aqueous solution by rare earth-doped Snonanoparticles

Abdullah M. Al-Hamdi, Mika Sillanpää, Joydeep Dutta

Research output: Contribution to journalArticle

30 Citations (Scopus)

Abstract

The influence of heterogeneous semiconductors on the photodegradation of phenol in water was investigated using doped tin dioxide (SnO2) nanoparticles. Photocatalysts of SnO2 were synthesized with lanthanum (La), cerium (Ce), and neodymium (Nd) dopants. These photocatalysts were synthesized from tin tetrachloride by sol-gel method with different dopant concentrations, and its photocatalytic degradation was investigated up to 0.8 % under UV-A light in aqueous suspensions. The photocatalytic oxidation reactions were studied by varying photocatalyst composition, light intensity, reaction time, pH of the reaction medium, and phenol concentration. It was found that the photocatalytic activity of rare earth-doped SnO2 for phenol decomposition under UV light irradiation was considerably higher than that of pure SnO2 nanoparticles. The experimental results also indicate that more than 95 % phenol was effectively oxidized in the presence of an aqueous suspension of La: SnO2 nanoparticles within 120 min of UV light irradiation.

Original languageEnglish
Pages (from-to)5151-5159
Number of pages9
JournalJournal of Materials Science
Volume49
Issue number14
DOIs
Publication statusPublished - 2014

Fingerprint

Phenol
Rare earths
Phenols
Photocatalysts
Lanthanum
Degradation
Nanoparticles
Ultraviolet radiation
Suspensions
Doping (additives)
Irradiation
Tin dioxide
Cerium
Neodymium
Photodegradation
Sol-gel process
Tin
Semiconductor materials
Decomposition
Oxidation

ASJC Scopus subject areas

  • Materials Science(all)
  • Mechanics of Materials
  • Mechanical Engineering

Cite this

Photocatalytic degradation of phenol in aqueous solution by rare earth-doped Snonanoparticles. / Al-Hamdi, Abdullah M.; Sillanpää, Mika; Dutta, Joydeep.

In: Journal of Materials Science, Vol. 49, No. 14, 2014, p. 5151-5159.

Research output: Contribution to journalArticle

Al-Hamdi, Abdullah M. ; Sillanpää, Mika ; Dutta, Joydeep. / Photocatalytic degradation of phenol in aqueous solution by rare earth-doped Snonanoparticles. In: Journal of Materials Science. 2014 ; Vol. 49, No. 14. pp. 5151-5159.
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