Journal: Water Conservation and Management (WCM)
Author: Andrey A. Ponomarev, Tatyana S. Nurullina, Michail D. Zavatsky
Print ISSN : 2523-5664
Online ISSN : 2523-5672

This is an open access article distributed under the Creative Commons Attribution License CC BY 4.0, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited

Doi: 10.26480/wcm.02.2022.146.153


“Green” synthesis is attracted considerable interest in materials science as a reliable, durable, and environmentally friendly approach to fabricating a wide range of nanoparticles such as metal oxide. Green production of metal nanoparticles was used to host a variety of biological components (such as fungi, algae, plant extracts bacteria etc.). Shewanella oneidensis MR-1 was employed in this biosynthetic investigation of palladium nanoparticles (Bio-Pd) to produce Cr (VI) under aerobic circumstances. By adjusting the ratio of microbial biomass to palladium precursors, it was possible to control the distribution and size of Bio-Pd. The Pd ratio had the smallest average particle size at 6.33 1.69 nm. Additionally, it has a formic acid oxidation electrocatalytic potential of -0.132 V, which is 0.158 V smaller than that of commercial Pd/C (5%). The entire catalytic reduction of a 200 mg/L Cr (VI) solution could be achieved by the tiny, uniformly distributed extracellular Bio-Pd within 10 minutes, but commercially available Pd/C (5%) required at least 45 minutes. Over five cycles, the Bio-Pd material offers a high decrease rate. Microbes have a substantial effect on the entire process of effectively reducing Cr (VI), dispersing palladium nanoparticles, and adsorbing Cr (III). The findings of this study will serve as a guide for the advancement of effective and environmentally acceptable bio-Pd catalysts for pollution control in straightforward and reasonable situations.

Pages 146-153
Year 2022
Issue 2
Volume 6