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

Murat AKARSU; Meltem ASİLTÜRK; Funda SAYILKAN

Makale detayları

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

Yazarlar:

Murat AKARSU | Meltem ASİLTÜRK | Funda SAYILKAN

Yayıncı:

TUBITAK

Dergi:

Turkish Journal of Chemistry 2006 Vol.30 Issue 3, pp.333-343

Belge Tipi:

Makale

Yayın Tarihi:

2/2006

Belge Dili:

Türkçe

Document ID (Org No.):

2000728899

Sıklık:

İki Aylık

eISSN:

1303-6130

pISSN:

1300-0527

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.

 

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.

Makale detayları

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

Yazarlar: Murat AKARSU | Meltem ASİLTÜRK | Funda SAYILKAN

Yayıncı: TUBITAK

Dergi: Turkish Journal of Chemistry 2006 Vol.30 Issue 3, pp.333-343

Belge Tipi: Makale

Yayın Tarihi: 2/2006

Belge Dili: Türkçe

Document ID (Org No.): 2000728899

Sıklık: İki Aylık

eISSN: 1303-6130

pISSN: 1300-0527

Sayı

Yazarlar:

Murat AKARSU | Meltem ASİLTÜRK | Funda SAYILKAN

Yayıncı:

TUBITAK

Dergi:

Turkish Journal of Chemistry 2006 Vol.30 Issue 3, pp.333-343

Belge Tipi:

Makale

Yayın Tarihi:

2/2006

Belge Dili:

Türkçe

Document ID (Org No.):

2000728899

Sıklık:

İki Aylık

eISSN:

1303-6130

pISSN:

1300-0527