Mo doping-enhanced dye absorption of Bi(2)Se(3) nanoflowers

A simple solvothermal approach is explored to prepare Bi(2−x)Mo(x)Se(3) nanostructures by employing N,N-dimethylformamide (DMF) as the solvent. Mo plays an important role in the assembly of the Bi(2−x)Mo(x)Se(3) nanostructures from nanoplates to nanoflowers. Structural and morphological studies indicate that the resulting products are large specific surface area single-crystalline Bi(2−x)Mo(x)Se(3) nanoflowers self-assembled from thin nanoplates during the reaction process. The absorption properties of the as-prepared samples are investigated with Rhodamine B (RhB) as dye, and it is found that the Bi(1.85)Mo(0.15)Se(3) nanoflowers show an optimal adsorption capacity, implying that Mo doping not only changes the morphologies of the nanostructures but also enhances their absorption behaviors.