Synthesis and characterization of high efficiency and stable Ag3PO4/TiO2 visible light photocatalyst for the degradation of methylene blue and rhodamine B solutions

Abstract

A facile and reproducible method for the synthesis of Ag 3 PO 4 /TiO 2 visible light photocatalyst has been developed to improve the photocatalytic activity and stability of Ag 3 PO 4 . The innovation of this method is to in situ deposit Ag 3 PO 4 nanoparticles onto the TiO 2 (P25) surface forming a heterostructure. The improved activity of the Ag 3 PO 4 /TiO 2 heterostructured photocatalyst for the degradation of methylene blue (MB) and rhodamine B (RhB) under visible light irradiation is attributed to the increased surface area and enhanced absorption of MB and RhB. Furthermore, depositing Ag 3 PO 4 onto the surface of TiO 2 facilitates electron-hole separation that leads to the elevated photocatalytic activity. The heterostructured Ag 3 PO 4 /TiO 2 photocatalyst significantly decreases the loading of noble metal Ag from 77 wt% to 47 wt%, thereby significantly reducing the cost for the practical application of Ag 3 PO 4 photocatalyst.

Enormous enhancement in photocatalytic performance of Ag3PO4/HAp composite: A Z-scheme mechanism insight

“…Thus, much attention has been employed to develop a simple and effective technology to improve efficiency of photoinduced electrons for Ag 3 PO 4 system. Constructing a hybrid or heterojunction between Ag 3 PO 4 and another semiconductor with proper band structure such as Ag 3 PO 4 /TiO 2 [13], Ag 3 PO 4 /g-C 3 N 4 [10,14], Ag 3 PO 4 /SnO 2 [15], Ag 3 PO 4 /Ag/SiC [16], Ag 3 PO 4 -Graphene [17], and P25/Ag 3 PO 4 /graphene oxide [18] can enhance the photocatalytic activity and stability of Ag 3 PO 4 in the photocatalytic degradation of organic pollutants and bacteria. Moreover, the particles size of Ag 3 PO 4 has obvious effect on the efficiency of photodegradation [19].…”

Synthesis, Structures, and Photocatalytic Properties of Zinc(II) and Cobalt(II) Supramolecular Complexes Constructed with Flexible Bis(thiabendazole) and Dicarboxylate Linkers

“…A wide range of efficient semiconductor-based photocatalysts such as TiO 2 , ZnO, g-C 3 N 4 and their modified catalysts with the aim of decomposing organic pollutants, especially azo dyes, which are difficult to be degraded by classic methods and potentially harmful to health and environment have been produced by a variety of synthetic strategies and extensively applied in degrading organic dyes from wastewater. [1][2][3][4][5][6] Apart from those classical catalysts, the exploitation of semiconductor photocatalysts based on coordination polymers (CPs), which can be used to decompose organic pollutants under UV/Vis light, has become one of the major green and high-efficient water treatment technologies for environmental remediation. [7][8][9][10] It is well known that photocatalysts with high specific surface area and appropriate bandgap can enrich adsorption of the dye on the catalyst and accelerate separation rate of photogenerated electron-hole pairs.…”

The Role of Graphene Oxide in Ag3PO4/graphene Oxide Composites for Enhanced Visible-light-driven Photocatalytic Ability

“…The results show that Ag 3 PO 4 has high photooxidation ability for O 2 evolution from water, and it can also degrade organic dye efficiently. Then, some strategies aiming to further enhance the photocatalytic ability of Ag 3 PO 4 have been explored, including morphology control, construction hybrid composites with the sink of charge carriers and so forth (7)(8)(9).…”