Nano Cu metal doped on TiO2-SiO2 nanoparticle catalysts in photocatalytic degradation of direct blue dye

R M Mohamed; I A Mkhalid; S A Al-Thabaiti; Mohamed Mokhtar

doi:10.1166/jnn.2013.7602

Nano Cu metal doped on TiO2-SiO2 nanoparticle catalysts in photocatalytic degradation of direct blue dye

J Nanosci Nanotechnol. 2013 Jul;13(7):4975-80. doi: 10.1166/jnn.2013.7602.

Authors

R M Mohamed¹, I A Mkhalid, S A Al-Thabaiti, Mohamed Mokhtar

Affiliation

¹ Faculty of Science, Chemistry Department, King Abdulaziz University, PO Box: 80203, Jeddah 21589, Saudi Arabia.

PMID: 23901519
DOI: 10.1166/jnn.2013.7602

Abstract

The photo-assisted deposition (PAD) and impregnation (Img) synthesis of nano-sized Cu metal on TiO2-SiO2 are reported. The prepared catalysts were characterized by different techniques such as XRD, EXAFS, TEM and nitrogen adsorption analysis. Photocatalytic reactivity using Cu-TiO2-SiO2 catalysts under visible-light condition on the oxidation of direct blue dye with O2 reaction was evaluated. The results have shown notable photocatalytic activity of PAD-Cu/TiO2-SiO2 which was 1.6 and 10 times higher than that of Img-Cu/TiO2-SiO2 and TiO2-SiO2, respectively.

MeSH terms

Catalysis
Copper / chemistry*
Copper / radiation effects
Light
Materials Testing
Metal Nanoparticles / chemistry*
Metal Nanoparticles / radiation effects
Photochemistry / methods
Titanium / chemistry*
Trypan Blue / chemistry*
Trypan Blue / isolation & purification
Trypan Blue / radiation effects

Substances

titanium dioxide
pontamine sky blue
Copper
Titanium
Trypan Blue