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Dergiler / Turkish Journal of Chemistry / 2006 / Cilt: 30 - Sayı: 3

A Novel Approach to the Hydrothermal Synthesis of Anatase Titania Nanoparticles and the Photocatalytic Degradation of Rhodamine B

Murat AKARSU
Meltem ASİLTÜRK
Funda SAYILKAN
Sayfa
333–343
Yayın Tarihi
2006-03-01
DOI
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The results revealed that the photodegradation of RB proceeds by pseudo first-order reaction kinetics in which the rate constant of the degradation is 0.132 min-1.

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Amaç & Hipotez:A novel approach was developed for the synthesis of high-dispersed anatase nano-TiO2 by a hydrothermal process without solvent at 200 °C in 1 h.
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Temel Bulgular & Veri:Nanoparticle-TiO2 was used as a photocatalyst by considering complete degradation of Rhodamine B (RB) dye.
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Sonuç & Katkı:The results revealed that the photodegradation of RB proceeds by pseudo first-order reaction kinetics in which the rate constant of the degradation is 0.132 min-1.
🔬Tür:Araştırma Makalesi
📍Kapsam:Genişletilmiş Akademik Örneklem
⚙️Değişkenler:Turk. J. Chem. · (2006) · 333-343. Full text: pdf Other articles published in the same issue: Turk. J. Chem.

Özet

A novel approach was developed for the synthesis of high-dispersed anatase nano-TiO2 by a hydrothermal process without solvent at 200 °C in 1 h. It was characterized using XRD, TEM, BET and elemental analysis. Nanoparticle-TiO2 was used as a photocatalyst by considering complete degradation of Rhodamine B (RB) dye. The photocatalytic reaction parameters such as photocatalyst amount, irradiation time and dye concentration were optimized and it was found that 0.125 wt% catalyst in 30 mg/L of RB aqueous solution is adequate for full degradation of RB in 50 min with 770 W/m2 irradiation power. Photocatalytic activity of the nanoparticle-TiO2 was compared with Degussa P-25 at optimum catalysis conditions determined for the nanoparticle-TiO2. It was concluded that when compared to Degussa P-25, the nanoparticle-TiO2 can be repeatedly used with increasing photocatalytic activity. The results revealed that the photodegradation of RB proceeds by pseudo first-order reaction kinetics in which the rate constant of the degradation is 0.132 min-1.

Abstract

A novel approach was developed for the synthesis of high-dispersed anatase nano-TiO2 by a hydrothermal process without solvent at 200 °C in 1 h. It was characterized using XRD, TEM, BET and elemental analysis. Nanoparticle-TiO2 was used as a photocatalyst by considering complete degradation of Rhodamine B (RB) dye. The photocatalytic reaction parameters such as photocatalyst amount, irradiation time and dye concentration were optimized and it was found that 0.125 wt% catalyst in 30 mg/L of RB aqueous solution is adequate for full degradation of RB in 50 min with 770 W/m2 irradiation power. Photocatalytic activity of the nanoparticle-TiO2 was compared with Degussa P-25 at optimum catalysis conditions determined for the nanoparticle-TiO2. It was concluded that when compared to Degussa P-25, the nanoparticle-TiO2 can be repeatedly used with increasing photocatalytic activity. The results revealed that the photodegradation of RB proceeds by pseudo first-order reaction kinetics in which the rate constant of the degradation is 0.132 min-1.

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Bu Makaleye Atıf Yap

AKARSU, M., ASİLTÜRK, M., SAYILKAN, F. (2006). A Novel Approach to the Hydrothermal Synthesis of Anatase Titania Nanoparticles and the Photocatalytic Degradation of Rhodamine B. Turkish Journal of Chemistry, Cilt: 30 - Sayı: 3, 333–343. https://ajindex.com/articles/218006

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