Modification of Multi-walled Carbon Nanotubes with Nanoparticles for High Photocatalytic Activity

Title:Modification of Multi-walled Carbon Nanotubes with Nanoparticles for High Photocatalytic Activity

Volume: 11 Issue: 4

Author(s): Tong Ling Tan, Sharifah Bee Abd Hamid and Chin Wei Lai

Affiliation:

Keywords: Methyl orange, MWCNTs, Sol-gel, TiO₂.

Abstract: Titanium dioxide (TiO2) nanoparticles were successfully attached to the outer surface of one dimensional oxidized multi-walled carbon nanotubes (MWCNTs) via sol-gel technique. It was well-established that calcination temperature played a critical role in controlling the crystallinity and phase of MWCNTs/TiO₂ composites. Thus, the effects of calcination temperature on the resulting MWCNTs/TiO₂ were illustrated. The phase transition of MWCNTs/TiO₂ composites was determined using XRD analysis. The photocatalytic activity evaluation of MWCNTs/TiO₂ composites was conducted under degradation of organic dye (methyl orange solution). The results revealed that annealed MWCNTs/TiO₂ composites showed significantly enhanced photocatalytic activity due to the highly crystalline anatase TiO₂ structures.

Cite this article as:

Ling Tan Tong, Bee Abd Hamid Sharifah and Wei Lai Chin, Modification of Multi-walled Carbon Nanotubes with Nanoparticles for High Photocatalytic Activity, Current Nanoscience 2015; 11 (4) . https://dx.doi.org/10.2174/1573413711666150202233509