Application of microwave superheating for the synthesis of TiO2 rods

Vilas G. Pol; Yaakov Langzam; Arie Zaban

doi:10.1021/la7020116

Application of microwave superheating for the synthesis of TiO₂ rods

Vilas G. Pol, Yaakov Langzam, Arie Zaban

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Abstract

A simple microwave irradiation method for the large-scale synthesis of submicrometer-sized TiO₂ rods at normal atmospheric pressure and the boiling temperature of the solvent is demonstrated. It is emphasized that only 1-3 min of microwave irradiation is adequate to react tetra-isopropyl orthotitanate with ethylene glycol to produce rods of titanium glycolate [TG] with diameters of ∼0.4 μm and lengths up to 5 μm. The as-formed TG rods, followed by calcination under air for 2 h, fabricated anatase (500°C) and rutile (900°C) titania without changing their rod-shaped morphology. The crystallinity, structure, morphology, and thermal analysis are carried out by several techniques. A mechanism based on microwave superheating phenomena is presented with the support of previous reports and several control experiments.

Original language	English
Pages (from-to)	11211-11216
Number of pages	6
Journal	Langmuir
Volume	23
Issue number	22
DOIs	https://doi.org/10.1021/la7020116
State	Published - 23 Oct 2007

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10.1021/la7020116

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title = "Application of microwave superheating for the synthesis of TiO2 rods",

abstract = "A simple microwave irradiation method for the large-scale synthesis of submicrometer-sized TiO2 rods at normal atmospheric pressure and the boiling temperature of the solvent is demonstrated. It is emphasized that only 1-3 min of microwave irradiation is adequate to react tetra-isopropyl orthotitanate with ethylene glycol to produce rods of titanium glycolate [TG] with diameters of ∼0.4 μm and lengths up to 5 μm. The as-formed TG rods, followed by calcination under air for 2 h, fabricated anatase (500°C) and rutile (900°C) titania without changing their rod-shaped morphology. The crystallinity, structure, morphology, and thermal analysis are carried out by several techniques. A mechanism based on microwave superheating phenomena is presented with the support of previous reports and several control experiments.",

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AU - Langzam, Yaakov

AU - Zaban, Arie

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N2 - A simple microwave irradiation method for the large-scale synthesis of submicrometer-sized TiO2 rods at normal atmospheric pressure and the boiling temperature of the solvent is demonstrated. It is emphasized that only 1-3 min of microwave irradiation is adequate to react tetra-isopropyl orthotitanate with ethylene glycol to produce rods of titanium glycolate [TG] with diameters of ∼0.4 μm and lengths up to 5 μm. The as-formed TG rods, followed by calcination under air for 2 h, fabricated anatase (500°C) and rutile (900°C) titania without changing their rod-shaped morphology. The crystallinity, structure, morphology, and thermal analysis are carried out by several techniques. A mechanism based on microwave superheating phenomena is presented with the support of previous reports and several control experiments.

AB - A simple microwave irradiation method for the large-scale synthesis of submicrometer-sized TiO2 rods at normal atmospheric pressure and the boiling temperature of the solvent is demonstrated. It is emphasized that only 1-3 min of microwave irradiation is adequate to react tetra-isopropyl orthotitanate with ethylene glycol to produce rods of titanium glycolate [TG] with diameters of ∼0.4 μm and lengths up to 5 μm. The as-formed TG rods, followed by calcination under air for 2 h, fabricated anatase (500°C) and rutile (900°C) titania without changing their rod-shaped morphology. The crystallinity, structure, morphology, and thermal analysis are carried out by several techniques. A mechanism based on microwave superheating phenomena is presented with the support of previous reports and several control experiments.

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Application of microwave superheating for the synthesis of TiO₂ rods

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