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Ag nanoparticle-immobilized cellulose nanofibril films for environmental conservation

Paper ID Volume ID Publish Year Pages File Format Full-Text
39229 45813 2015 6 PDF Available
Title
Ag nanoparticle-immobilized cellulose nanofibril films for environmental conservation
Abstract

•Dendrimer-protected Ag nanoparticle was chemically bound on nanofibril cellulose.•A biodegradable nanocomposite film was prepared by the filtration method.•The films possessed a high catalytic efficiency to decoloration of Rhodamine B.•The films displayed an excellent antibacterial performance against bacteria.

A facile method was developed to prepare biodegradable nanocomposite films. Ag nanoparticles stabilized by an NH2-terminated fourth generation poly(amido amine) dendrimer (DENAgNPs) were covalently immobilized on 2,2,6,6-tetramethylpiperidine-1-oxyl radical-oxidized nanofibrillated cellulose (NFC) by using a condensing agent for amide bond formation between NFC and DENAgNPs. Subsequently, the films with different concentrations of DENAgNPs were prepared by filtrating DENAgNPs-NFC suspensions on filter membranes, and the dried films were characterized. As-prepared films possessed the high catalytic efficiency to decoloration of Rhodamine B in water and the excellent antibacterial performance against both Gram-positive and Gram-negative bacteria on agar plates. Thus, this novel concept of film-type nanocomposite reactor demonstrates that it is possible to prepare inexpensive catalytic and bactericidal-active films with good selectivity by easy prospective approach for realizing the environmental conservation and innovation.

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Keywords
Cellulose nanofiber; Dendrimer; Catalysis; Antibacterial activity; Nanocomposite film
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Ag nanoparticle-immobilized cellulose nanofibril films for environmental conservation
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Publisher
Database: Elsevier - ScienceDirect
Journal: Applied Catalysis A: General - Volume 492, 25 February 2015, Pages 184–189
Authors
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Subjects
Physical Sciences and Engineering Chemical Engineering Catalysis
Get Full-Text Now
Don't Miss Today's Special Offer
Price was $35.95
You save - $31
Price after discount Only $4.95
100% Money Back Guarantee
Full-text PDF Download
Online Support
Any Questions? feel free to contact us