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In this work, a new morphology was obtained for bismuth tungstate (Bi 2 WO 6 -glyc) using a hydrothermal method with the addition of glycerol as a surfactant. In order to compare, the bismuth tungstate without glycerol as the surfactant, i.e., Bi 2 WO 6 , was synthesized. Structural characterization by XRD and Rietveld refinement confirmed the orthorhombic structure as a single phase for all samples with high crystallinity. All active modes in Raman spectroscopy for the orthorhombic phase of bismuth tungstate were confirmed in agreement with XRD analysis. N 2 adsorption/desorption and size pore distribution confirmed the high surface area (85.7 m 2 /g) for Bi 2 WO 6 -glyc when compared with Bi 2 WO 6 (8.5 m 2 /g). The optical band gap by diffuse reflectance was 2.78 eV and 2.88 eV for Bi 2 WO 6 -glyc and Bi 2 WO 6 , respectively. SEM images confirmed the different morphology for these materials, and microstructures with cheese crisp were observed for Bi 2 WO 6 -glyc (cheese crisp). On the other hand, flower-like microcrystals were confirmed for Bi 2 WO 6 sample. The photocatalytic performance of Bi 2 WO 6 -glyc (94.2%) in the photodegradation of rhodamine B (RhB) dye solutions at 60 min was more expressive than Bi 2 WO 6 (81.3%) and photolysis (8.2%) at 90 min.

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