Green synthesis of Fe nanoparticles by using Mangifera indica extract and its application in photo-catalytic degradation of dyes

Abstract

An exceedingly facile green approach that produces a reliable adsorbent of transition metal such as Iron (Fe) using Mangifera Indica leaf extract at room temperature is described, acquires more significance nowadays. A single pot method used for synthesis with no capping agents, surfactants or other templates. The main intention of this study is to synthesize iron nanoparticles from leaf extract (Mangifera Indica) and examine its degradation potential for photo-catalytic removal of dyes (Congo red & brilliant green) from waste water. Characterization of synthesized nanoparticles was executed by pHpzc, SEM & FTIR studies and results confirms the presence of iron Nano-sheets with biomolecules. All photo-catalytic experimental results were discussed by SSE and Simple linear regression (SLR) R2 with dye concentration, pH, contact time and dose rate as dependent and independent variables. Adsorption experimental data was verified by kinetics and isothermal models. Results proposed that Langmuir and Pseudo-2nd order model give best fitness towards photo-catalytic adsorption procedure. Thermodynamics revealed that adsorption mechanism is endothermic described by the values of Gibbs free energy (ΔG), enthalpy (ΔH) with entropy (ΔS) and said to be chemisorption with spontaneous processes. Overall photo-catalytic adsorption execution of synthesized iron nanoparticles and simple biomass of Mangifera Indica gives satisfactory results for treating dyes waste water.

Green Synthesis of Flower-Shaped Copper Oxide and Nickel Oxide Nanoparticles via Capparis decidua Leaf Extract for Synergic Adsorption-Photocatalytic Degradation of Pesticides

“…For enhanced degradation of L-CHT, different parameters were optimized. The desired amount of nanocatalyst was added (1-5 mg L −1 ) to the L-CHT solution with different concentrations (10-70 mg L −1 ) at a certain pH (5)(6)(7)(8)(9), and the contact time for irritation was 3 h. Aliquots of 3 mL were collected at a regular time interval for 3 h after irritation, and then centrifuged at 4000 rpm for 10 min to remove the photocatalyst from L-CHT. All experiments were conducted in triplicate and showed high reproducibility, with an estimated error of below 5%.…”

“…The implementation of measures that remove pesticides from agricultural runoff is a must [4]. Several physical and chemical methods have been explored as possible decentralized water treatment technologies, such as filtration or ozonation [5,6]. Unfortunately, the high costs associated with these technologies are a major barrier to implementation in developing countries [5].…”

Biodegradation and decolorization of methylene blue, reactive Black-5, and toluidine blue-O from an aqueous solution using the polyphenol oxidase enzyme

“…For example, the synthesis of iron nanoparticles from leaf extract (Mangifera indica) was examined for its degradation potential for the photocatalytic removal of dyes (Congo red and Brilliant Green) from wastewater. The results showed that the maximum percentage of photo-catalytic degradation achieved was 72.6 and 80.87% for Congo Red, and 72.88 and 82% for Brilliant Green, with biomass and NPs, respectively (Zulfikar et al, 2021). However, in the present study, the decolorization of selected textile dyes was studied without the combination of any other technique.…”