© The Institution of Engineering and Technology
A simple and feasible aerosol-assisted spray-drying method was developed. High-resolution transmission electron microscopy images demonstrated the as-prepared TiO2 possessed hollow structure with large cavity formed by the accumulation of numerous nanoparticles. Moreover, the obtained TiO2 hollow spheres could lead to the improved light-harvesting and low recombination of photo-generated electron–hole carriers, as well as large specific surface area. These excellent properties contributed to the superior photocatalytic activity in degrading Rhodamine B.
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