Fig. 2: Morphological analysis of the synthesized 2D TiO2 sheets.

Transmission electron microscopy (TEM) images of the synthesized 2D TiO2 sheets a S1, b S2, c S3, d S4 under atmospheric and various air-gap-assisted solvothermal conditions.

Transmission electron microscopy (TEM) images of the synthesized 2D TiO2 sheets a S1, b S2, c S3, d S4 under atmospheric and various air-gap-assisted solvothermal conditions.