Spectral Studies of UV and Solar Photocatalytic Degradation of AZO Dye and Textile Dye Effluents Using Green Synthesized Silver Nanoparticles

Abstract

The photocatalytic degradation of the chemical dye AZO and dye effluents in different time duration has been investigated using biologically synthesized silver nanoparticles. Dye industry effluents and AZO dye undergo degradation to form harmless intermediate and colourless products following irradiation by UV and solar light in the presence of green synthesized silver nanoparticles. The degree of degradation was tested under the experimental conditions such as PH, temperature, and absorbance of the dye in UV and solar light was measured. The degradation was higher in the UV light source than in the solar light source. Green synthesized silver nanoparticles in the UV light source were found to expedite the dye degradation process.

Synthesis of silver nanoparticles from natural derived embelin compound and their uses in mercury degradation under solar light

“…Silver nanoparticles (AgNPs) have been researched for their potential to degrade metal pollutants in the environment. One of the main ways that AgNPs can be used for metal degradation is through a process known as photocatalysis (Swati and Anita (2021), Pooja et al 2020, Mariselvam et al 2019, Mariselvam et al 2016. When AgNPs are exposed to light, they generate highly reactive species, such as electrons and holes, that can degrade pollutants such as heavy metals (Pooja et al 2020).…”

“…The solar catalytic degradation of Mercury was degraded by using embelin based silver nanoparticles, as a catalyst under solar light. 100 ml of aqueous Mercury (II) chloride mixed with 10 ml of En-AgNPs under solar light degradation method (Mariselvam et al 2016). The Mercury degradation was tested by UV/visible spectrophotometer and kinetic measurement was performed at room temperature for solar radiation.…”

Synthesis and characterization of silver nanoparticles from Cocos nucifera L. male flowers: An investigation into their potent antibacterial and anticancer efficacy

“…The exact mechanism and toxicity of Thymus vulgaris leaf extract-based silver nanoparticles were studied through methicillin-resistant Staphylococcus aureus (MRSA) [20]. Green synthesized silver nanoparticles were used to degrade the inorganic dyes and industrial effluents [21][22][23]. The biological impacts of C. nucifera encompass antihelminthic, anti-inflammatory, antinociceptive, antioxidant, antifungal, antimicrobial, and antitumor properties [24].…”

Evidence on temperature and concentration of reducing agents to control the nanoparticles growth and their microbial inhibitory efficacy

“…Silver nanoparticles are very small particles of silver that have a size on the nanometer scale, typically ranging from 1 to 100 nanometers in diameter (Khan et al 2019). These particles have unique physical and chemical properties that differ from those of bulk silver, and they have attracted significant interest due to their potential use in a variety of applications, including as antimicrobial agents (Mariselvam et al 2014, Mariselvam et al 2021, catalysts (Mariselvam et al 2016, Mariselvam et al 2019, and in electronic and optical devices (Lee andJun 2019, Majeed et al 2022).…”