ABSTRACT
For the first time, the sorption properties of TiO2 nanoparticles with a rutile phase were investigated; TiO2 nanoparticles with a rutile phase were synthesized by the sol–gel method and used as adsorbents. Later, the process of adsorption of 1 mg L–1 phenol solution in the presence of rutile-phase TiO2 nanoparticles was studied for Smart City Framework.
Adsorption was performed for 2 hours at 25°C. It was found that the adsorption of phenol in the presence of rutile-phase TiO2 was incomplete. Although the rutile-phase TiO2 is a very good photocatalyst, it is a weak adsorbent.
In this chapter, a description of the adsorption of phenol with TiO2 nanoparticles is presented, and this topic is applied to solve environmental problems in the building stage of a smart city.
The nanocrystalline rutile-phase TiO2 nanoparticles were characterized by X-ray powder diffraction (XRD). The course of adsorption was studied on the “Varian Cary 50.” Based on the curves built on the device “Varian Cary 50,” it was determined that the adsorption was incomplete.
At the end of the process, based on the graph, the amount of phenol in the solution decreased, but phenol remained in the solution. This proves that the adsorption was incomplete. Mathematical modeling of the process was developed using both logistic and exponential methods.
