Effect of Hybrid mono/bimetallic Nanocomposites for an enhancement of Catalytic and Antimicrobial Activities

Exploring the new catalytic systems for the reduction of organic and inorganic pollutants from an indispensable process in chemical, petrochemical, pharmaceutical and food industries, etc. Hence, in the present work, authors motivated to synthesize bare reduced graphene oxide (rGO), polyaniline (PAN...

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Veröffentlicht in:Scientific reports 2020-02, Vol.10 (1), p.2586, Article 2586
Hauptverfasser: Sivaranjan, Kuppan, Padmaraj, Osaimany, Santhanalakshmi, Jayadevan, Sathuvan, Malairaj, Sathiyaseelan, Anbazhagan, Sagadevan, Suresh
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container_title Scientific reports
container_volume 10
creator Sivaranjan, Kuppan
Padmaraj, Osaimany
Santhanalakshmi, Jayadevan
Sathuvan, Malairaj
Sathiyaseelan, Anbazhagan
Sagadevan, Suresh
description Exploring the new catalytic systems for the reduction of organic and inorganic pollutants from an indispensable process in chemical, petrochemical, pharmaceutical and food industries, etc. Hence, in the present work, authors motivated to synthesize bare reduced graphene oxide (rGO), polyaniline (PANI), three different ratios of rGO-PANI (80:20, 50:50, 10:90) composites and rGO-PANI (80:20, 50:50, 10:90) supported mono (Pd) & bimetallic [Pd: Au (1:1, 1:2, 2:1) ] nanocomposite by a facile chemical reduction method. Also, it investigated their catalytic performances for the reduction of organic/inorganic pollutants and antimicrobial activities. All the freshly prepared bare rGO, PANI, three different ratios of rGO-PANI (80:20, 50:50, 10:90) composites and rGO-PANI (80:20, 50:50, 10:90) /Pd & Pd: Au (1:1, 1:2, 2:1) nanocomposite hybrid catalysts were characterized using UV-Vis, FT-IR, SEM, FE-SEM, EDAX, HR-TEM, XRD, XPS and Raman spectroscopy analysis. Among them, an optimized best composition of rGO-PANI (80:20) /Pd: Au (1:1) bimetallic nanocomposite hybrid catalyst exhibits better catalytic reduction and antimicrobial activities than other composites, as a result of strong electrostatic interactions between rGO, PANI and bimetal (Pd: Au) NPs through a synergistic effect. Hence, an optimized rGO-PANI (80:20) /Pd:Au (1:1) bimetallic nanocomposite catalyst would be considered as a suitable catalyst for the reduction of different nitroarenes, organic dyes, heavy metal ions and also significantly inhibit the growth of S. aureus, S. Typhi as well as Candida albicans and Candida kruesi in wastewater.
doi_str_mv 10.1038/s41598-020-59491-5
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Also, it investigated their catalytic performances for the reduction of organic/inorganic pollutants and antimicrobial activities. All the freshly prepared bare rGO, PANI, three different ratios of rGO-PANI (80:20, 50:50, 10:90) composites and rGO-PANI (80:20, 50:50, 10:90) /Pd &amp; Pd: Au (1:1, 1:2, 2:1) nanocomposite hybrid catalysts were characterized using UV-Vis, FT-IR, SEM, FE-SEM, EDAX, HR-TEM, XRD, XPS and Raman spectroscopy analysis. Among them, an optimized best composition of rGO-PANI (80:20) /Pd: Au (1:1) bimetallic nanocomposite hybrid catalyst exhibits better catalytic reduction and antimicrobial activities than other composites, as a result of strong electrostatic interactions between rGO, PANI and bimetal (Pd: Au) NPs through a synergistic effect. 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subjects 140/133
140/146
631/45/603
639/925/918/1055
Aniline Compounds - chemistry
Aniline Compounds - pharmacology
Antimicrobial agents
Bacteria - drug effects
Catalysis
Catalysts
Chemical reduction
Coloring Agents - isolation & purification
Electrostatic properties
Environmental Pollutants - isolation & purification
Food industry
Fungi - drug effects
Gold - chemistry
Gold - pharmacology
Graphite - chemistry
Graphite - pharmacology
Heavy metals
Humanities and Social Sciences
Metal ions
multidisciplinary
Nanocomposites
Nanocomposites - chemistry
Nanocomposites - ultrastructure
Nitro Compounds - isolation & purification
Oxidation-Reduction
Palladium - chemistry
Palladium - pharmacology
Petrochemicals
Pollutants
Raman spectroscopy
Science
Science (multidisciplinary)
Synergistic effect
Wastewater
title Effect of Hybrid mono/bimetallic Nanocomposites for an enhancement of Catalytic and Antimicrobial Activities
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