fig1
![Construction of piezoelectric photocatalyst Au/BiVO<sub>4</sub> for efficient degradation of tetracycline and studied at single-particle level](https://image.oaes.cc/fb6c44d8-fbbf-45ff-9080-b3ff6e52e2d9/cs3065.fig.1.jpg)
Figure 1. (A) Schematic diagram of the synthesis route of the xAu/BiVO4 heterojunction; (B-D) SEM images of the xAu/BiVO4 heterostructures (x = 1, 3, 5); (E and F) HRTEM images of 3Au/BiVO4; (G) EDS elemental mapping images of the 3Au/BiVO4 heterostructures. The scales in Figure 1G all represent 1 um. BiVO4: Bismuth vanadate; SEM: scanning electron microscope; HRTEM: high-resolution transmission electron microscopy; EDS: energy-dispersive X-ray spectroscopy.