Facile solvothermal synthesis of a high-efficiency CNNs/Ag/AgCl plasmonic photocatalyst

Abstract

A CNNs/Ag/AgCl (defined as CNAAC) plasmonic photocatalyst with efficient photocatalytic degradation ability was obtained by depositing Ag/AgCl nanoparticles on g-CN nanosheets (CNNS). Methyl orange (MO) and rhodamine B (RhB) were selected to evaluate the photocatalytic degradation performance of the as-synthesized CNAAC plasmonic photocatalysts. Among all of the prepared CNAAC plasmonic photocatalysts, CNAAC4 showed the most efficient photocatalytic degradation performance under visible light. Recycling experiments were also performed to confirm the superior stability of CNAAC4. The synergistic effect between the surface plasmon resonance effect (SPR) of the Ag nanoparticles and the steady heterojunction of CNNs-Ag/AgCl may mainly contribute to the enhanced photocatalytic activity and high stability of CNAAC.

Ethanol Solvothermal Treatment on Graphitic Carbon Nitride Materials for Enhancing Photocatalytic Hydrogen Evolution Performance

“…Bragg's law showed no significant change in the d-spacing values among the four samples, implying the robust solvothermal stability of the g-C 3 N 4 photocatalysts (even those prepared with the ethanol solvent) (Table 1) [25,27,28]. As is shown in Figure 4a, the interlayer stacking (002) peak intensity of Pt/CN-160 is lower than that of the other samples, likely indicating that there would be a loss in the stacking ordered structure of the g-C 3 N 4 nanosheet, resulting in a little-layered structure of g-C 3 N 4 [7,[29][30][31][32]. However, when the solvothermal temperature is above 180 • C, the (002) peaks become stronger; this is likely associated with the enhanced crystallinity since defects can be recovered by re-polymerization during the solvothermal process [32].…”

Regulations of silver halide nanostructure and composites on photocatalysis

“…These produced hot electrons from plasmon-excited Ag nanoparticles can fast inject into the CB of AgCl [320,376], whose feature is similar to dye sensitization [284]. Afterward, the electrons arrived at the CB of AgCl can be consumed by O 2 molecules to produce oxidative radicals or molecules (O 2 ) are considered as powerful force to destruct the dye molecules structure [321].…”

“…In hybridization aspect between AgX and photocatalytic substrates, the photocatalysis elevation is based on the Z-scheme heterogeneous structure formation in order to gain high charge separation efficiency [316][317][318][319][320][321]. While incorporation of AgX in high specific surface area substrate is another promising strategy in photocatalytic activity promotion, especially in wastewater treatment [322][323][324][325][326].…”

One step synthesis of high-efficiency AgBr–Br–g-C3N4 composite catalysts for photocatalytic H2O2 production via two channel pathway

“…Besides, two-component modication, such as Ag-AgX, are also used to promote the catalytic performance of g-C 3 N 4 . 17,18 Wang et al prepared a high-efficiency g-C 3 N 4 /Ag/AgCl plasmonic photocatalyst via a facile solvothermal method. 17 The surface plasmon resonance effect of the Ag nanoparticles, the polarization eld of AgCl and the g-C 3 N 4 /Ag/AgCl heterojunction all result in the improved photocatalytic degradation performance.…”

“…17,18 Wang et al prepared a high-efficiency g-C 3 N 4 /Ag/AgCl plasmonic photocatalyst via a facile solvothermal method. 17 The surface plasmon resonance effect of the Ag nanoparticles, the polarization eld of AgCl and the g-C 3 N 4 /Ag/AgCl heterojunction all result in the improved photocatalytic degradation performance. Chen et al prepared plasmonic photocatalyst Ag/ AgBr/g-C 3 N 4 by in situ ionic-liquid-assisted synthesis.…”