Statistical optimization of bio-mediated silver nanoparticles synthesis for use in catalytic degradation of some azo dyes

The present study deals with optimization of process parameters for the synthesis of silver nanoparticles from outer shell extract of Eucalyptus globulus fruit and maximization of nanoparticles yield. The statistical tool of design of experiments (DOE), following response surface methodology (RSM),...

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Autores principales:	Mitali Sarkar, Shanku Denrah, Manisha Das, Mahadeb Das
Formato:	article
Lenguaje:	EN
Publicado:	Elsevier 2021
Materias:	Silver nanoparticles Eucalyptus globulus RSM Catalytic azo dye degradation kinetics Efficiency Physics QC1-999 Chemistry QD1-999
Acceso en línea:	https://doaj.org/article/24997b6fb1174ba0b1eae827b0b035f7
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spelling	oai:doaj.org-article:24997b6fb1174ba0b1eae827b0b035f72021-11-24T04:35:24ZStatistical optimization of bio-mediated silver nanoparticles synthesis for use in catalytic degradation of some azo dyes2667-022410.1016/j.chphi.2021.100053https://doaj.org/article/24997b6fb1174ba0b1eae827b0b035f72021-12-01T00:00:00Zhttp://www.sciencedirect.com/science/article/pii/S2667022421000426https://doaj.org/toc/2667-0224The present study deals with optimization of process parameters for the synthesis of silver nanoparticles from outer shell extract of Eucalyptus globulus fruit and maximization of nanoparticles yield. The statistical tool of design of experiments (DOE), following response surface methodology (RSM), was, thus, employed. The synthesized silver nanoparticles were characterized by UV–Vis, FTIR, Raman, DLS, SEM-EDX, FESEM and TEM analyses. The nanoparticle, as catalyst, was utilized for reductive degradation of three azo dyes such as methyl orange, methyl red and congo red in aqueous medium at room temperature. Reductive degradation pathway of the said dyes using NaBH4 and silver nanoparticle catalyst was followed under visible light. More than 90% degradation of the dyes was observed within 10 min for methyl orange, and 20 min for both methyl red and congo red. The mechanism of the degradation process and the kinetic parameters were evaluated. The degradation pathway was found to follow a pseudo first-order kinetic model and the activation energy was evaluated to be 244, 204 and 104 kJ mol−1 for methyl orange, methyl red and congo red respectively. The role of common ions on the degradation efficiency was determined and the process was found effective in the river water system.Mitali SarkarShanku DenrahManisha DasMahadeb DasElsevierarticleSilver nanoparticlesEucalyptus globulusRSMCatalytic azo dye degradation kineticsEfficiencyPhysicsQC1-999ChemistryQD1-999ENChemical Physics Impact, Vol 3, Iss , Pp 100053- (2021)
institution	DOAJ
collection	DOAJ
language	EN
topic	Silver nanoparticles Eucalyptus globulus RSM Catalytic azo dye degradation kinetics Efficiency Physics QC1-999 Chemistry QD1-999
spellingShingle	Silver nanoparticles Eucalyptus globulus RSM Catalytic azo dye degradation kinetics Efficiency Physics QC1-999 Chemistry QD1-999 Mitali Sarkar Shanku Denrah Manisha Das Mahadeb Das Statistical optimization of bio-mediated silver nanoparticles synthesis for use in catalytic degradation of some azo dyes
description	The present study deals with optimization of process parameters for the synthesis of silver nanoparticles from outer shell extract of Eucalyptus globulus fruit and maximization of nanoparticles yield. The statistical tool of design of experiments (DOE), following response surface methodology (RSM), was, thus, employed. The synthesized silver nanoparticles were characterized by UV–Vis, FTIR, Raman, DLS, SEM-EDX, FESEM and TEM analyses. The nanoparticle, as catalyst, was utilized for reductive degradation of three azo dyes such as methyl orange, methyl red and congo red in aqueous medium at room temperature. Reductive degradation pathway of the said dyes using NaBH4 and silver nanoparticle catalyst was followed under visible light. More than 90% degradation of the dyes was observed within 10 min for methyl orange, and 20 min for both methyl red and congo red. The mechanism of the degradation process and the kinetic parameters were evaluated. The degradation pathway was found to follow a pseudo first-order kinetic model and the activation energy was evaluated to be 244, 204 and 104 kJ mol−1 for methyl orange, methyl red and congo red respectively. The role of common ions on the degradation efficiency was determined and the process was found effective in the river water system.
format	article
author	Mitali Sarkar Shanku Denrah Manisha Das Mahadeb Das
author_facet	Mitali Sarkar Shanku Denrah Manisha Das Mahadeb Das
author_sort	Mitali Sarkar
title	Statistical optimization of bio-mediated silver nanoparticles synthesis for use in catalytic degradation of some azo dyes
title_short	Statistical optimization of bio-mediated silver nanoparticles synthesis for use in catalytic degradation of some azo dyes
title_full	Statistical optimization of bio-mediated silver nanoparticles synthesis for use in catalytic degradation of some azo dyes
title_fullStr	Statistical optimization of bio-mediated silver nanoparticles synthesis for use in catalytic degradation of some azo dyes
title_full_unstemmed	Statistical optimization of bio-mediated silver nanoparticles synthesis for use in catalytic degradation of some azo dyes
title_sort	statistical optimization of bio-mediated silver nanoparticles synthesis for use in catalytic degradation of some azo dyes
publisher	Elsevier
publishDate	2021
url	https://doaj.org/article/24997b6fb1174ba0b1eae827b0b035f7
work_keys_str_mv	AT mitalisarkar statisticaloptimizationofbiomediatedsilvernanoparticlessynthesisforuseincatalyticdegradationofsomeazodyes AT shankudenrah statisticaloptimizationofbiomediatedsilvernanoparticlessynthesisforuseincatalyticdegradationofsomeazodyes AT manishadas statisticaloptimizationofbiomediatedsilvernanoparticlessynthesisforuseincatalyticdegradationofsomeazodyes AT mahadebdas statisticaloptimizationofbiomediatedsilvernanoparticlessynthesisforuseincatalyticdegradationofsomeazodyes
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Statistical optimization of bio-mediated silver nanoparticles synthesis for use in catalytic degradation of some azo dyes

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