PHOTOCATALYTIC GLYCEROL REFORMING ON GOLD - COPPER NANO METALLIC TiO2
23rd World Hydrogen Energy Conference: Bridging Continents by H2, WHEC 2022, İstanbul, Türkiye, 26 - 30 Haziran 2022, ss.31-33, (Tam Metin Bildiri)
- Yayın Türü: Bildiri / Tam Metin Bildiri
- Basıldığı Şehir: İstanbul
- Basıldığı Ülke: Türkiye
- Sayfa Sayıları: ss.31-33
- Anahtar Kelimeler: Au/TiO2, Glycerol, Hydrogen production, Photocatalysis, Photocatalytic reforming
- Boğaziçi Üniversitesi Adresli: Evet
Özet
The photocatalytic reforming of glycerol was studied on gold-copper (Au-Cu) loaded titanium dioxide (TiO2) photocatalyst with the aim of utilizing glycerol, which is the main by-product of biodiesel production, to produce hydrogen using solar energy. 0.2 wt. % Au, 1 wt.% Cu as well as 0.2% Au and 0.8 wt.% Cu containing photocatalysts were tested. The monometallic and bimetallic photocatalysts were synthesized by deposition precipitation with urea (DPU) and sequential deposition precipitation with urea (S-DPU) respectively and calcined in air at 400°C for 4h. Then the photocatalysts were tested in a photoreactor, equipped with 300 W xenon lamp, at ambient condition using 20 wt.% aqueous glycerol mixture. 0.2 wt.% Au loaded on TiO2 produced H2 with 1085 µmol/h.gcat production rate, which is comparable to that of 1 wt.% platinum (Pt) loaded on TiO2. Then, it was concluded that Au/TiO2 could be a more economical alternative for Pt considering that it produced the same results even thought its loading was five times lower.