Microstructural evolution of a TiO2 mesoporous single layer film under calcination: Effect of stabilization and repeated thermal treatments on the film crystallization and surface area

► Anatase mesoporous films were prepared by templating route. ► Action of repeated thermal treatment was simulated on single layer films. ► Repeated thermal treatment affects the film surface area and crystallinity. ► Repeated thermal treatment can lead to the film porosity destruction. ► Two thermal treatments were studied to tune the film microstructure.