Performance of ferroelectric visible light type II Ag10Si4O13/TiO2 heterojunction photocatalyst

In situ synthesis and properties of Ag/Ag10Si4O13/GO photocatalysts with synergistic effect of plasma Resonance and Schottky junction

“…Nano-Ag 10 Si 4 O 13 [3,26,27]) based photocatalyst is outstanding, but there is still a certain gap compared with that of AGG.…”

“…However, the enhancement of purity and controllable modification of as-prepared Ag 10 Si 4 O 13 are relatively difficult due to ion diffusion in solid state. In recent years, a high purity nanocrystalline preparation strategy based on sol-gel process were proposed by our research group, which provided the possibility of atomic scale composition adjustment to further improve degradation performance and stability of nano-Ag 10 Si 4 O 13 [3,26,27].…”

“…The rapid development and capacity expansion of textile and printing result in the production of a large number of dyes wastewater, 1,2 which has been one of the serious routes for the generation of gray/polluted water. 3 Semiconductor photocatalytic oxidation, as a type of advanced oxidation processing with the potential to overcome energy shortage and solve environmental pollution problems, utilizes sunlight for the non-selective and efficient degradation of organic pollutants in the presence of water without secondary pollution. [4][5][6] Many efforts have been made in the direction of classic photocatalytic materials such as titanium dioxide (TiO 2 ) to improve the photocatalytic performance and improve the visible light response ability.…”

“…As a new type of silver-based photocatalysts, silver silicate (Ag x Si y O z ) photocatalysts could provide empty 5s orbital and potentially the 5p orbital to accept additional electrons due to Ag ions forming FCC cluster-like aggregates. 3 Combined with the unique electronic d 10 -d 10 structure and the internal polarization electric field induced by the distorted tetrahedral unit [SiO 4 ], Ag x Si y O z showed a strong charge separation rate. 19,20 As the strength of the internal electric field is determined by the number of the distorted [SiO 4 ] tetrahedra, Ag 10 Si 4 O 13 has attracted considerable attention.…”

“…In recent years, a high purity nanocrystalline preparation strategy based on the sol-gel process were proposed by our research group, which provided the possibility of atomic scale composition adjustment to further improve the degradation performance and stability of nano-Ag 10 Si 4 O 13 . 3,26,27 Graphene, as a good conductor of photoelectrons, has been widely used to improve the performance of photocatalysts. 28,29 A high work function (4.42 eV) of graphene makes it a photoelectron acceptor from the conduction band of the photocatalysts.…”