*Synthesis and Properties of Titanium Dioxide Nanoparticles DOI: http://dx.doi.org/10.5772/intechopen.111577*

**Table 1** illustrates the different properties of titanium dioxide NPs. As it can be concluded from these values, TiO2 NPs possess interesting physicochemical properties, which are influenced by different factors such as exposed crystal faces, morphology, and size of particles. Chen and Mao have published a review on the synthesis, properties, and applications of TiO2 NPs [11].


### **Table 1.**

*Various properties of titanium dioxide NPs [67].*

**Figure 15** shows the different hierarchical nanostructures of TiO2. Four morphologies, involving 0D (quantum dots), 1D (nanotubes, nanorods, nanofibers,…), 2D (nanflakes nanosheets,…), and 3D (nanospheres, nanoflowers,…), can be obtained.

**Figure 15.** *Different hierarchical nanostructures of TiO2.*
