Abstract
Ag3PO4triangular prism was synthesized by a facile chemical precipitation approach by simply adjusting external ultrasonic condition. The as-synthesized Ag3PO4triangular prism was characterized by X-ray diffraction pattern (XRD), field emission scanning electron microscopy (SEM), fourier transform infrared (FTIR) spectra, and ultraviolet-visible diffuse reflectance (UV-vis DRS) absorption spectra. The photocatalytic activity of Ag3PO4triangular prism was evaluated by photodegradation of organic methylene blue (MB), rhodamine B (RhB), and phenol under visible light irradiation. Results showed that Ag3PO4triangular prism exhibited higher photocatalytic activity than N-doped TiO2and commercial TiO2(P25) under visible light irradiation.
Highlights
Photocatalysis technology is considered as an efficient, stable, and environmentally friendly method for controlling environmental pollutions [1]
The synthesis mechanisms of Ag3PO4 triangular prism could be explained as follows: the ultrasound assisted method could accelerate solid particles to high velocities via creating cavitation and shock waves, which leads to interparticle collision and effective fusion at the point of collision [23, 24]
The percentage of photocatalytic degradation of methylene blue (MB) and rhodamine B (RhB) for the samples follows the following order: Ag3PO4 triangular prism > N-doped TiO2 > commercial TiO2 (P25). This result clearly indicates that the Ag3PO4 triangular prism shows higher photocatalytic activity under visible-light irradiation, which could attribute to the strong visible-light absorption of Ag3PO4 triangular prism
Summary
Photocatalysis technology is considered as an efficient, stable, and environmentally friendly method for controlling environmental pollutions [1]. One of the methods is the coupling of Ag3PO4 with other semiconductors or noble metals to promote the charge separation efficiency of Ag3PO4 and enhancing of the photocatalytic activity Some composite samples such as Ag3PO4/TiO2 [3], AgBr@Ag3PO4/Fe3O4 [4], Ag3PO4/graphene oxide [5], Ag3PO4/TiOF2 [6], Ag3PO4/Ag [7], Ag3PO4/ZnO [8], Ag3PO4/BiOCl [9], Ag3PO4/reduced graphite oxide sheets [10], and g-C3N4/Ag3PO4 [11] have recently been developed to enhance the photocatalytic activity of Ag3PO4. Another method is the synthesis of Ag3PO4 with various new morphologies.
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