Research papers foriron oxide nanoparticles using guava leaves extract and its application in seed germination
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Answer:
Nano materials (1–100 nm) offers distinctive structural and physico-chemical properties as compared to bulk counterpart owing to the surface to volume ratio [1]. The most recent advancement in nanotechnology has led to the expansion in the synthesis of NPs by different chemical and physical methods. However, these methods have negative impact on the environment and living organisms since un-reacted chemicals are discharged in the environment. Therefore, there is need to fabricate the NPs using environmental benign techniques and NPs synthesized biogenically can be equally employed in electronics, biomedical field, material science and environmental remediation etc.
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Iron oxide nanoparticles (Fe2O3 NPs) were fabricated through green route using pomegranate (Punica granatum) seeds extract. The Fe2O3 NPs were characterized by UV–vis, XRD, EDX, SEM and AFM techniques. The adopted green rout furnished semi spherical Fe2O3 NPs, uniformly distributed and particle size in the range of 25–55 nm. The LCMS/MS was performed for the identification of biomolecule present in the extract of pomegranate seeds and p-hydroxy benzoic acid, gallic acid, methyl gallate, catechin, kaempferol-3-O-sophoroside, 3-deoxyflavonoids, magnolol, ferulic acid, vanillic acid and pinocembrin along with other minor constituents were detected in the extracts using for Fe2O3 NPs. The synthesized Fe2O3 NPs showed excellent photocatalytic activity against reactive blue under UV light irradiation and maximum degradation of 95.08% was achieved with 56 min of reaction time. In view of promising activity, the Fe2O3 NPs could be used photocatalyst for the degradation of dyes in wastewater and pomegranate seeds extract can be applied as eco-benign and cost effective approach for Fe2O3 NPs synthesis.