Abstract
In this study, high-performance SnO2/TiO2 nanotube (TNT) nanocomposites were prepared through a facile one-step hydrothermal method. The samples retained a high BET surface area because they were calcination-free. The BET surface area of all of the samples was over 300 m2/g, and the length was within 100–200 nm. During the hydrothermal reaction, a heterojunction between the SnO2 and TNTs through oriented attachment was achieved. Additionally, we demonstrate that the introduction of cassiterite SnO2 as a precursor in the hydrothermal process can induce the growth of anatase TiO2. A SnO2/TNT nanocomposite photocatalyst not only facilitated dye adsorption at a high concentration around the surface of the nanocomposites but also exhibited efficient charge separation properties and achieved outstanding photocatalytic performance. This study proposes a simple, cost-effective, and environmentally friendly synthetic strategy for fabrication of TNT-based heterostructures as high-performance photocatalysts through adding precursors in the proper amounts.
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