A novel approach to the hydrothermal synthesis of anatase titania nanoparticles and the photocatalytic degradation of rhodamine B
Yükleniyor...
Dosyalar
Tarih
2006
Dergi Başlığı
Dergi ISSN
Cilt Başlığı
Yayıncı
Turkish Journal of Chemistry
Erişim Hakkı
info:eu-repo/semantics/openAccess
Özet
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.
Açıklama
Anahtar Kelimeler
Kaynak
Turkish Journal of Chemistry
WoS Q Değeri
Q3
Scopus Q Değeri
Cilt
30
Sayı
3
Künye
AKARSU M,ASİLTÜRK M,SAYILKAN F,KİRAZ N,ARPAÇ E,SAYILKAN H (2006). A novel approach to the hydrothermal synthesis of anatase titania nanoparticles and the photocatalytic degradation of rhodamine B. Turkish Journal of Chemistry, 30(3), 333 - 343.
