Mesoporous titania photocatalyst: Effect of relative humidity and aging on the preparation of mesoporous titania and on its photocatalytic activity performance

Suhaina Mohd Ibrahim, Abdul Kadir Masrom, Babak Mazinani, Shahidan Radiman, Farinaa Md Jamil, Ali Beitollahi, Nobuaki Negishi, Noorhana Yahya

Research output: Contribution to journalArticle

7 Citations (Scopus)

Abstract

Mesoporous TiO2 has been synthesized by the sol-gel method, using a nonionic triblock copolymer P123 as surfactant template under acidic conditions. The as-prepared samples were characterized by thermogravimetry- differential thermal analysis (TG-DTA), nitrogen absorption-desorption (BET), field emission scanning electron microscopy, and transmission electron microscopy. The photocatalytic activity of the mesoporous TiO2 was evaluated by degradation of methylene blue under high-intensity UV light irradiation; the amount of methylene blue was measured by UV-visible spectroscopy. TG-DTA analysis revealed that the surfactant had been removed partly in as-synthesized samples. BET analysis proved that all the samples retained mesoporosity with a narrow pore-size distribution (4.5-6.3 nm) and high surface area (103-200 m2/g). All calcined mesoporous TiO2 had high photocatalytic activity in the photodegradation of methylene blue.

Original languageEnglish
Pages (from-to)1003-1014
Number of pages12
JournalResearch on Chemical Intermediates
Volume39
Issue number3
DOIs
Publication statusPublished - Mar 2013

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Methylene Blue
Photocatalysts
Atmospheric humidity
Aging of materials
Surface-Active Agents
Differential thermal analysis
Thermogravimetric analysis
Photodegradation
Ultraviolet radiation
Field emission
Sol-gel process
Block copolymers
Pore size
Desorption
Nitrogen
Irradiation
Spectroscopy
Transmission electron microscopy
Degradation
Scanning electron microscopy

Keywords

  • Mesoporous
  • Nonionic triblock copolymer
  • Photocatalyst
  • TiO

ASJC Scopus subject areas

  • Chemistry(all)

Cite this

Mesoporous titania photocatalyst : Effect of relative humidity and aging on the preparation of mesoporous titania and on its photocatalytic activity performance. / Mohd Ibrahim, Suhaina; Masrom, Abdul Kadir; Mazinani, Babak; Radiman, Shahidan; Md Jamil, Farinaa; Beitollahi, Ali; Negishi, Nobuaki; Yahya, Noorhana.

In: Research on Chemical Intermediates, Vol. 39, No. 3, 03.2013, p. 1003-1014.

Research output: Contribution to journalArticle

Mohd Ibrahim, Suhaina ; Masrom, Abdul Kadir ; Mazinani, Babak ; Radiman, Shahidan ; Md Jamil, Farinaa ; Beitollahi, Ali ; Negishi, Nobuaki ; Yahya, Noorhana. / Mesoporous titania photocatalyst : Effect of relative humidity and aging on the preparation of mesoporous titania and on its photocatalytic activity performance. In: Research on Chemical Intermediates. 2013 ; Vol. 39, No. 3. pp. 1003-1014.
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