Mussel-inspired Ag/poly(norepinephrine)/MnO2 heterogeneous nanocatalyst for efficient reduction of 4-nitrophenol and 4-nitroaniline: an alternative approach

Tushar Kanti Das; Sayan Ganguly; Sanjay Remanan; Sabyasachi Ghosh; Narayan Ch Das

doi:10.1007/s11164-020-04165-0

Mussel-inspired Ag/poly(norepinephrine)/MnO₂ heterogeneous nanocatalyst for efficient reduction of 4-nitrophenol and 4-nitroaniline: an alternative approach

Tushar Kanti Das, Sayan Ganguly, Sanjay Remanan, Sabyasachi Ghosh, Narayan Ch Das

Department of Chemistry

Research output: Contribution to journal › Article › peer-review

31 Scopus citations

Abstract

Abstract: Noble metal-based surface chemistry is a well-practiced domain on interest in catalysis. A newborn in mussel-inspired coating based on catecholic chemistry, poly(norepinephrine) (PNE), has been synthesized via cyclization polymerization technique over MnO₂ nanosheets. The physisorped PNE macromolecular chains over MnO₂ nanosheets act as green reducing agent for silver ions resulting in arresting the quasi-spherical silver nanoparticles distributed over the MnO₂-PNE assembly. The catalytic activity was performed against nitroaryl molecules which evidenced fast reduction with pseudo-first-order kinetics. The superiority which lies in this work is their facile preparation, high surface area due to sheet-like morphology, and fast catalytic reduction. These practical observations spread its window as nanocatalyst toward environmental remediation of hazardous nitroaryl compounds. Graphic abstract: [Figure not available: see fulltext.].

Original language	English
Pages (from-to)	3629-3650
Number of pages	22
Journal	Research on Chemical Intermediates
Volume	46
Issue number	7
DOIs	https://doi.org/10.1007/s11164-020-04165-0
State	Published - 1 Jul 2020

Bibliographical note

Funding Information:
TKD acknowledges Indian Institute of Technology-Kharagpur for awarding the institute fellowship for doing this work. The authors acknowledge Central Research Facility (CRF), Indian Institute of Technology-Kharagpur for extending various characterization facilities.

Funding Information:
TKD acknowledges Indian Institute of Technology-Kharagpur for awarding the institute fellowship for doing this work. The authors acknowledge Central Research Facility (CRF), Indian Institute of Technology-Kharagpur for extending various characterization facilities.

Publisher Copyright:
© 2020, Springer Nature B.V.

Keywords

Catalytic reduction
Environmental remediation
MnO nanosheets
Nitroaryls
Poly(norepinephrine)
Silver nanoparticles

Access to Document

10.1007/s11164-020-04165-0

Cite this

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title = "Mussel-inspired Ag/poly(norepinephrine)/MnO2 heterogeneous nanocatalyst for efficient reduction of 4-nitrophenol and 4-nitroaniline: an alternative approach",

abstract = "Abstract: Noble metal-based surface chemistry is a well-practiced domain on interest in catalysis. A newborn in mussel-inspired coating based on catecholic chemistry, poly(norepinephrine) (PNE), has been synthesized via cyclization polymerization technique over MnO2 nanosheets. The physisorped PNE macromolecular chains over MnO2 nanosheets act as green reducing agent for silver ions resulting in arresting the quasi-spherical silver nanoparticles distributed over the MnO2-PNE assembly. The catalytic activity was performed against nitroaryl molecules which evidenced fast reduction with pseudo-first-order kinetics. The superiority which lies in this work is their facile preparation, high surface area due to sheet-like morphology, and fast catalytic reduction. These practical observations spread its window as nanocatalyst toward environmental remediation of hazardous nitroaryl compounds. Graphic abstract: [Figure not available: see fulltext.].",

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AU - Das, Tushar Kanti

AU - Ganguly, Sayan

AU - Remanan, Sanjay

AU - Ghosh, Sabyasachi

AU - Das, Narayan Ch

PY - 2020/7/1

Y1 - 2020/7/1

N2 - Abstract: Noble metal-based surface chemistry is a well-practiced domain on interest in catalysis. A newborn in mussel-inspired coating based on catecholic chemistry, poly(norepinephrine) (PNE), has been synthesized via cyclization polymerization technique over MnO2 nanosheets. The physisorped PNE macromolecular chains over MnO2 nanosheets act as green reducing agent for silver ions resulting in arresting the quasi-spherical silver nanoparticles distributed over the MnO2-PNE assembly. The catalytic activity was performed against nitroaryl molecules which evidenced fast reduction with pseudo-first-order kinetics. The superiority which lies in this work is their facile preparation, high surface area due to sheet-like morphology, and fast catalytic reduction. These practical observations spread its window as nanocatalyst toward environmental remediation of hazardous nitroaryl compounds. Graphic abstract: [Figure not available: see fulltext.].

AB - Abstract: Noble metal-based surface chemistry is a well-practiced domain on interest in catalysis. A newborn in mussel-inspired coating based on catecholic chemistry, poly(norepinephrine) (PNE), has been synthesized via cyclization polymerization technique over MnO2 nanosheets. The physisorped PNE macromolecular chains over MnO2 nanosheets act as green reducing agent for silver ions resulting in arresting the quasi-spherical silver nanoparticles distributed over the MnO2-PNE assembly. The catalytic activity was performed against nitroaryl molecules which evidenced fast reduction with pseudo-first-order kinetics. The superiority which lies in this work is their facile preparation, high surface area due to sheet-like morphology, and fast catalytic reduction. These practical observations spread its window as nanocatalyst toward environmental remediation of hazardous nitroaryl compounds. Graphic abstract: [Figure not available: see fulltext.].

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KW - Environmental remediation

KW - MnO nanosheets

KW - Nitroaryls

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