Biochemical Synthesis of Ag/AgCl Nanoparticles for Visible-Light-Driven Photocatalytic Removal of Colored Dyes

Abstract

Photocatalytic removal of organic pollution such as waste colored dyes was a promising technique for environment technique. However, effective photocatalysts were needed to enhance the photocatalytic efficiency. Ag/AgCl was regarded as high performance catalyst for photocatalytic degradation. Ag/AgCl nanoparticles were biochemically prepared with metabolin of living fungi which was used as reductant and characterized by X-Ray diffraction (XRD), UV-visible spectroscopy and transmission electron microscopy (TEM). The Ag/AgCl nanoparticle composites showed spherical aggregation shape with an average size of about 3–5 nm which is well inside the quantum regime. The UV-visible study showed that Ag/AgCl nanoparticles had strong visible light absorption and exhibited excellent visible-light-driven photocatalytic performance. Photocatalytic results indicated that the obtained Ag/AgCl nanoparticles were suitable for photocatalytic removal of RhB dye under visible light irradiation. The excellent photocatalytic activities could be attributed to the quantum size nanoparticles and the Plasmon resonance of Ag/AgCl composites.

Antimicrobial activity of biogenic silver nanoparticles, and silver chloride nanoparticles: an overview and comments

“…Similarly, Zhao et al (2015) generated both Ag o and AgCl nanoparticles by Trichoderma hamatum extract as shown by its XRD pattern. Plasmonic silver-embedded silver chloride (Ag/AgCl) nano-photocatalysts were prepared in a microbefree aqueous lysogeny broth (Miller) solution, with sunlight exposure and at room temperature, as shown by XRD analysis.…”

Synthesis of Ag‐modified TiO2 nanotube and its application in photocatalytic degradation of dyes and elemental mercury

“…By contrast, the synthesized Ag‐modified TNT showed a remarkable blue shift of the absorption edge. This is not surprising because AgCl has large band gaps of 5.6 eV . This result implies that the band structure of Ag‐modified TNT was changed because of the junction between AgCl, Ag and TNT.…”

“…This is not surprising because AgCl has large band gaps of 5.6 eV. 33 This result implies that the band structure of Ag-modified TNT was changed because of the junction between AgCl, Ag and TNT. Figure 6 shows the surface functionality of the synthesized samples by using FTIR measurement.…”

Degradation of Rhodamine B Dye by Cactus Polysaccharide‐Synthesized Silver Nanoparticles Monitored by Fluorescence Excitation‐Emission Matrix (FEEM) Spectroscopy

“…Recent advances in the search of alternative dye degradative materials include the synthesis of nanocomposites prepared biochemically with the help of micro‐organisms . More recently, plant extracts such as agar, Ocimum sanctum , and alginate hydrogels have emerged as ideal alternatives for the synthesis and immobilization of metal nanoparticles .…”