BioRicinus Communis Seed Extract was Used in the Green Manufacture of Zero-valent Iron Nanoparticles for Photocatalyst Elimination of Chromium
J. Environ. Nanotechnol., Volume 13, No 3 (2024) pp. 222-229
Abstract
Zero-valent iron was produced in this work utilising BioRicinus communis seed extract. XRD, SEM, and TEM methods were used to characterise the physicochemical characteristics of the finished products. According to TEM analysis, the iron zero-valent nanomaterials with diameters ranging from 20 to 40 nm and shell-core architectures were successfully produced. XRD findings verified the existence of several organic compounds. The photoactivity of the product was investigated by reducing the contaminant. According to the test result, the inclusion of fruit extract as a nanoscale catalyst in the photocatalyst reduced the hexavalent chromium. According to photocatalyst results, when the particulate dose was 0.675 g/L, the trivalent chromium suffered from low was 100%. A pseudo-second-order solution describes this reaction's kinetics. At pH 3 and 0.5 g/L seed extract concentration, the kinetic rate constant is 0.4. As a result, the frequency of the photocatalyst was significantly increased, and a more significant amount of Cr (VI) was eliminated. The accessible sites became progressively constrained and overloaded with bichromate particles as the starting content of Cr (VI) was increased at a consistent dose. Changing the nanoparticle dosage may considerably boost the reaction rate, hence the effectiveness of a photocatalyst's Cr (VI) catalytic cycle.
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Reference
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