The design of new magnetic-photocatalyst nanocomposites (CoFe2O4-TiO2) as smart nanomaterials for recyclable-photocatalysis applications

Choonyian Haw, Weesiong Chiu, Saadah Abdul Rahman, Poisim Khiew, Shahidan Radiman, Roslan Abd. Shukor, Muhammad Azmi Abdul Hamid, Naziri Ghazali

Research output: Contribution to journalArticle

27 Citations (Scopus)

Abstract

The current study reports the synthesis and characterisation of a new magnetic-photocatalyst (CoFe2O4-TiO2) and tests its feasibility to be used as smart magnetically-recoverable nanomaterial in the photodegradation of methylene blue (MB). 3D urchin-like TiO2 microparticles are hydrothermally prepared and decorated with CoFe2O4 magnetic nanoparticles (NPs) through a co-precipitation method. The as-prepared CoFe2O4-3D TiO2 nanocomposites show an enhancement in the photodegradation of MB as compared to the commercial rutile-phase TiO2 and the pure urchin-like TiO2 (3D TiO2) microparticles. Such an enhancement could be accredited to the lower recombination rate of the photoexcited charge carriers of the CoFe2O4-3D TiO2 nanocomposites. Furthermore, the CoFe2O4-3D TiO2 nanocomposite is magnetically-retrievable for sequential recycling, and the results indicate that the nanocomposite shows a relatively consistent photocatalytic performance with negligible degradation. Thus, the current study would offer a potential route for the design and processing of a value-added photocatalyst nanocomposite that will contribute to the advancement of photocatalysis studies.

Original languageEnglish
Pages (from-to)1124-1136
Number of pages13
JournalNew Journal of Chemistry
Volume40
Issue number2
DOIs
Publication statusPublished - 1 Feb 2016

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Photocatalysis
Photocatalysts
Nanostructured materials
Nanocomposites
Methylene Blue
Photodegradation
Coprecipitation
Charge carriers
Recycling
cobalt ferrite
Nanoparticles
Degradation
Processing

ASJC Scopus subject areas

  • Chemistry(all)
  • Catalysis
  • Materials Chemistry

Cite this

The design of new magnetic-photocatalyst nanocomposites (CoFe2O4-TiO2) as smart nanomaterials for recyclable-photocatalysis applications. / Haw, Choonyian; Chiu, Weesiong; Abdul Rahman, Saadah; Khiew, Poisim; Radiman, Shahidan; Abd. Shukor, Roslan; Abdul Hamid, Muhammad Azmi; Ghazali, Naziri.

In: New Journal of Chemistry, Vol. 40, No. 2, 01.02.2016, p. 1124-1136.

Research output: Contribution to journalArticle

Haw, Choonyian ; Chiu, Weesiong ; Abdul Rahman, Saadah ; Khiew, Poisim ; Radiman, Shahidan ; Abd. Shukor, Roslan ; Abdul Hamid, Muhammad Azmi ; Ghazali, Naziri. / The design of new magnetic-photocatalyst nanocomposites (CoFe2O4-TiO2) as smart nanomaterials for recyclable-photocatalysis applications. In: New Journal of Chemistry. 2016 ; Vol. 40, No. 2. pp. 1124-1136.
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