Nanotitania-coated multi-walled carbon nanotube composite by facile colloidal processing route for photocatalytic applications

Multi-walled carbon nanotubes (MWCNTs) and titanium dioxide nanocomposites (MWCNTs/TiO 2 ) were fabricated by a simple novel colloidal processing route and tested as a photocatalyst for degradation of methylene blue under UV irradiation. The novel idea behind this work is to make MWCNTs and TiO 2 na...

Full description

Saved in:
Bibliographic Details
Published in:Composite interfaces 2014-03, Vol.21 (3), p.251-262
Main Authors: Rath, Purna C., Nayak, Sasmita, Bhattacharjee, Sarama, Besra, Laxmidhar, Singh, Bimal P.
Format: Article
Language:English
Subjects:
colloidal processing
composite coatings
MWCNTs
nano-TiO
photocatalytic degradation
Citations: Items that this one cites
Items that cite this one
Online Access:Get full text
Tags: Add Tag
No Tags, Be the first to tag this record!
Description
Summary:Multi-walled carbon nanotubes (MWCNTs) and titanium dioxide nanocomposites (MWCNTs/TiO 2 ) were fabricated by a simple novel colloidal processing route and tested as a photocatalyst for degradation of methylene blue under UV irradiation. The novel idea behind this work is to make MWCNTs and TiO 2 nanoparticle suspensions separately highly oppositely charged and utilize the electrostatic force of attraction between two entities to deposit nanotitania onto MWCNTs surface. Particle charge detector, scanning electron microscopy, transmission electron microscope, energy dispersive X-rays, X-rays diffraction (XRD), and Raman spectroscopy were used to characterize the composite. XRD and Raman spectroscopic analysis showed the crystalline structure of deposited TiO 2 over MWCNTs surface structure as anatase phase. It was found that MWCNTs/TiO 2 composite structure have much higher photocatalytic activity compared to TiO 2 nanoparticles. The composite material developed may find potential applications in the degradation of organic pollutants in aqueous medium under UV irradiation.
ISSN:0927-6440
1568-5543
DOI:10.1080/15685543.2014.864530