Mesoporous titania photocatalyst: effect of relative humidity and aging on the preparation of mesoporous titania and on its photocatalytic activity performance
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- 作者：Suhaina Mohd Ibrahim (1)
Abdul Kadir Masrom (1)
Babak Mazinani (2)
Shahidan Radiman (3)
Farinaa Md Jamil (1)
Ali Beitollahi (2)
Nobuaki Negishi (4)
Noorhana Yahya (5) - 关键词：Mesoporous ; TiO2 ; Nonionic triblock copolymer ; Photocatalyst
- 刊名：Research on Chemical Intermediates
- 出版年：2013
- 出版时间：March 2013
- 年：2013
- 卷：39
- 期：3
- 页码：1003-1014
- 全文大小：493 KB
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Abdul Kadir Masrom (1)
Babak Mazinani (2)
Shahidan Radiman (3)
Farinaa Md Jamil (1)
Ali Beitollahi (2)
Nobuaki Negishi (4)
Noorhana Yahya (5)
1. Advanced Material Research Centre (AMREC), SIRIM Berhad, Lot 34, Jalan Hi-Tech 2/3, Kulim Hi-Tech Park, 09000, Kulim, Kedah, Malaysia
2. Department of Metallurgy and Materials Engineering, Iran University of Science and Technology (IUST), Narmak, Tehran, Iran
3. School of Applied Physics, Faculty of Science and Technology, Universiti Kebangsaan Malaysia (UKM), Bangi, Selangor, Malaysia
4. Institute for Environmental Management Technology, National Institute of Advance Science and Technology (AIST), Tsukuba West, 16-1 Onogawa, Tsukuba, 305-8569, Japan
5. Faculty of Science and Information Technology, Universiti Teknologi Petronas (UTP), Tronoh, Perak, Malaysia - ISSN：1568-5675
文摘
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-.3?nm) and high surface area (103-00?m2/g). All calcined mesoporous TiO2 had high photocatalytic activity in the photodegradation of methylene blue.