Nt1310 Unit 3.1 Study Material

3.1 Project Methodology
In order to make sure that this project is on track, proper planning and scheduling is crucial. It is necessary to identify the significant key points which are photocatalytic activity of SWCNTs, properties of carbon nanotubes and titanium oxide, available testing procedures using scanning electron microscopy (SEM) and other spectroscopic methods. In this section, a brief detail provided regarding the methods used, sol-gel, hydrothermal and electrospinning. Also, the available tests that will be used are explained.

Figure 1 :

This layer is virtually invisible as it has a very small thickness and is also transparent. In order to prevent the fogging and dirt on glasses, the coating must be under UV illumination for it to sustain the hydrophobic property.
3.2.2 Methods to fabricate TiO2-SWCNT composite
There are enormous methods available to prepare the nanocomposite of CNT and TiO2 which are sol-gel method, electrospinning method, hydrothermal and more.

3.2.2.1 Sol-gel synthesis
Sol-gel is a method in which small molecules are used to produce solid materials. The method is used for the fabrication of metal oxides. The monomers will be transformed into colloidal solution which is known as sol. Sol is a colloidal suspension with solid particles in a liquid and they remain evenly dispersed throughout the solution. As for gel, it is an integrated network which varies from discrete particles to linked polymers. In this process, typical precursors are used preferably metal alkoxides.

3.2.2.2 Electrospinning