One-step formation of TiO2 hollow spheres via a facile microwave-assisted process for photocatalytic activity

Firas K. Mohamad Alosfur, Noor J. Ridha, Mohammad Hafizuddin Jumali, Shahidan Radiman

Research output: Contribution to journalArticle

14 Citations (Scopus)

Abstract

Mesoporous TiO2 hollow spherical nanostructures with high surface areas were successfully prepared using a microwave method. The prepared hollow spheres had a size range between 200 and 500 nm. The spheres consisted of numerous smaller TiO2 nanoparticles with an average diameter of 8 nm. The particles had an essentially mesoporous structure, with a pore size in the range of 2-50 nm. The results confirmed that the synthesised of anatase TiO2 nanoparticles with specific surface area approximately 172.3 m2 g-1. The effect of ultraviolet and visible light irradiation and catalyst dosage on the TiO2 photocatalytic activity was studied by measuring the degradation rate of methylene blue. The maximum dye degradation performances with low catalyst loading (30 mg) were 99% and 63.4% using the same duration of ultraviolet and visible light irradiation, respectively (120 min).

Original languageEnglish
Article number145707
JournalNanotechnology
Volume29
Issue number14
DOIs
Publication statusPublished - 19 Feb 2018

Fingerprint

Microwaves
Irradiation
Nanoparticles
Degradation
Catalysts
Methylene Blue
Specific surface area
Titanium dioxide
Pore size
Nanostructures
Coloring Agents
Dyes
titanium dioxide

Keywords

  • mesoporous
  • microwave
  • photocatalysis
  • TiO hollow spheres

ASJC Scopus subject areas

  • Bioengineering
  • Chemistry(all)
  • Materials Science(all)
  • Mechanics of Materials
  • Mechanical Engineering
  • Electrical and Electronic Engineering

Cite this

One-step formation of TiO2 hollow spheres via a facile microwave-assisted process for photocatalytic activity. / Mohamad Alosfur, Firas K.; Ridha, Noor J.; Jumali, Mohammad Hafizuddin; Radiman, Shahidan.

In: Nanotechnology, Vol. 29, No. 14, 145707, 19.02.2018.

Research output: Contribution to journalArticle

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