Preparation, characterization and photocatalytic properties of CdS nanoparticles dotted on the surface of carbon nanotubes
- 19 February 2008
- journal article
- Published by IOP Publishing in Nanotechnology
- Vol. 19 (11), 115709
- https://doi.org/10.1088/0957-4484/19/11/115709
Abstract
Cadmium sulfide (CdS) nanoparticles dotted on the surface of multiwalled carbon nanotubes (MWCNTs) have been synthesized by the polyol method. The as-prepared materials were characterized by x-ray powder diffraction, transmission electron microscopy, scanning electron microscopy, and Brunauer-Emmett-Teller adsorption analysis. The results indicate that CdS nanoparticles with diameter of 5-8 nm are thickly and uniformly coated on the surface of the MWCNTs. The photodegradation of azo dye using these materials was evaluated by the degradation of Brilliant Red X-3B under visible light. The coated nanotubes show higher photocatalytic activity than both CdS alone and a CdS/activated carbon sample; in addition, there is an optimum content of MWCNTs. The presence of MWCNTs can also hamper the photocorrosion of CdS. The mechanism for the enhancement of MWCNTs on the adsorption and photocatalytic property of CdS is investigated for the first time.This publication has 43 references indexed in Scilit:
- Preparation of multi-walled carbon nanotube supported TiO2 and its photocatalytic activity in the reduction of CO2 with H2OCarbon, 2007
- Preparation of Fenton reagent with H2O2 generated by solar light-illuminated nano-Cu2O/MWNTs compositesApplied Catalysis A: General, 2006
- Enhancement of adsorption and photocatalytic activity of TiO2 by using carbon nanotubes for the treatment of azo dyeApplied Catalysis B: Environment and Energy, 2005
- Enhancement of photocatalytic activity of mesoporous TiO2 by using carbon nanotubesApplied Catalysis A: General, 2005
- Ni-deposited multi-walled carbon nanotubes by electrodepositionCarbon, 2004
- Sonication assisted deposition of Cu2O nanoparticles on multiwall carbon nanotubes with polyol processCarbon, 2004
- Preparation of ceria nanoparticles supported on carbon nanotubesMaterials Research Bulletin, 2002
- Growth of Pd, Pt, Ag and Au nanoparticles on carbon nanotubesJournal of Materials Chemistry, 2001
- Synthesis of Large Arrays of Well-Aligned Carbon Nanotubes on GlassScience, 1998
- Helical microtubules of graphitic carbonNature, 1991