Aegle marmelosMediated Green Synthesis of Different Nanostructured Metal Hexacyanoferrates: Activity against Photodegradation of Harmful Organic Dyes

Abstract

Prussian blue analogue potassium metal hexacyanoferrate (KMHCF) nanoparticles Fe4[Fe(CN)6]3 (FeHCF), K2Cu3[Fe(CN)6]2 (KCuHCF), K2Ni[Fe(CN)6]·3H2O (KNiHCF), and K2Co[Fe(CN)6] (KCoHCF) have been synthesized using plant based biosurfactant Aegle marmelos (Bael) and water as a green solvent. It must be emphasized here that no harmful reagent or solvent was used throughout the study. Plant extracts are easily biodegradable and therefore do not cause any harm to the environment. Hence, the proposed method of synthesis of various KMHCF nanoparticles followed a green path. The synthesized nanoparticles were characterized by powder X-ray diffraction (PXRD), Field-Emission Scanning Electron Microscopy (FE-SEM), Transmission Electron Microscopy (TEM), and Fourier Transform Infrared Spectroscopy (FT-IR). MHCF nanoparticles were used for the photocatalytic degradation of toxic dyes like Malachite Green (MG), Eriochrome Black T (EBT), Methyl Orange (MO), and Methylene Blue (MB). Under optimized reaction conditions, maximum photocatalytic degradation was achieved in case of KCuHCF nanoparticles mediated degradation process (MG: 96.06%, EBT: 83.03%, MB: 94.72%, and MO: 63.71%) followed by KNiHCF (MG: 95%, EBT: 80.32%, MB: 91.35%, and MO: 59.42%), KCoHCF (MG: 91.45%, EBT: 78.84%, MB: 89.28%, and MO: 58.20%).

New hybrid polyoxometalate/polymer composites for photodegradation of eosin dye

“…Most of them are toxic and could be released at relatively high concentrations during industrial processes . As a result, their removal from industrial effluents is indispensable and is considered as a main environmental challenge since they are difficult to biodegrade and induce undesirable color to water . Various physical, chemical, and biological methods have been investigated for dyes removal from liquid effluent including the use of advanced oxidation process (AOP) .…”

“…2 As a result, their removal from industrial effluents is indispensable and is considered as a main environmental challenge since they are difficult to biodegrade and induce undesirable color to water. 3 Various physical, chemical, and biological methods have been investigated for dyes removal from liquid effluent including the use of advanced oxidation process (AOP). 4 Photocatalytic degradation is one of the AOP techniques where many metal oxides such as TiO 2 , ZnO, and WO 3 were tested.…”

Chitosan Membrane Embedded With ZnO/CuO Nanocomposites for the Photodegradation of Fast Green Dye Under Artificial and Solar Irradiation

“…The concentration of FCF was determined using a UV-Vis spectrophotometer in the range of between 350 and 800 nm. The decolourisation efficiency (%) was calculated using equation (1) [45][46][47][48] :…”

“Green” Nanozymes: Synthesis, Characterization, and Application in Amperometric (Bio)sensors

“…PBAs are usually obtained via various techniques, including chemical [9][10][11]17] and alternative biological methods [25,26]. The biosynthesis of nanoparticles (NPs) using plants, microorganisms and their metabolites, including polysaccharides, proteins, polypeptides and other compounds, is called "green" synthesis.…”

“…Green synthesis of various PBAs with plant extracts as biosurfactants was described, much of the data were reported by Shanker and colleagues [25,26]. The green-synthesized nanocomposites were used for sunlight-mediated photocatalytic degradation of toxic chemicals in water solutions, including phenolic compounds and organic dyes [32].…”