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Open AccessArticle

Development of ZnO Nanoflake Type Structures Using Silk Fibres as Template for Water Pollutants Remediation

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Department of Biotechnology, Vel Tech Rangarajan Dr.Sagunthala R&D Institute of Science and Technology, Chennai, Tamil Nadu 600062, India
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Tata Institute of Fundamental Research Hyderabad, Hyderabad Sy. No 36/P, Serilingampally Mandal, Hyderabad, Telangana 500107, India
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Department of Nanomaterials in Natural Sciences, Institute for Nanomaterials, Advanced Technologies and Innovation (CXI), Technical University of Liberec (TUL), Studentská 1402/2, 1 461 17 Liberec, Czech Republic
*
Authors to whom correspondence should be addressed.
Polymers 2020, 12(5), 1151; https://doi.org/10.3390/polym12051151
Received: 9 April 2020 / Revised: 14 May 2020 / Accepted: 15 May 2020 / Published: 18 May 2020
(This article belongs to the Special Issue Polymer Materials in Environmental Chemistry)
We have fabricated ZnO nanoflake structures using degummed silk fibers as templates, via soaking and calcining the silk fibers bearing ZnO nanoparticles at 150 °C for 6 h. The obtained ZnO nanostructures were characterized using scanning electron microscopy (SEM), X-ray diffraction analysis (XRD), and UV-vis and fluorescence spectroscopic analysis. The size (~500–700 nm) in length and thicknesses (~60 nm) of ZnO nanoflakes were produced. The catalysis performances of ZnO nanoflakes on silk fibers (ZnSk) via photo-degradation of naphthalene (93% in 256 min), as well as Rose Bengal dye removal (~1.7 mM g−1) through adsorption from aqueous solution, were practically observed. Further, ZnSk displayed superb antibacterial activity against the tested model gram-negative Escherichia coli bacterium. The produced ZnSk has huge scope to be used for real-world water contaminants remediation applications. View Full-Text
Keywords: silk fibers; ZnO; nanoflakes; photo-degradation; dye removal; antibacterial efficiency silk fibers; ZnO; nanoflakes; photo-degradation; dye removal; antibacterial efficiency
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MDPI and ACS Style

Rao, K.J.; Korumilli, T.; KP, A.; Wacławek, S.; Černík, M.; Padil, V.V.T. Development of ZnO Nanoflake Type Structures Using Silk Fibres as Template for Water Pollutants Remediation. Polymers 2020, 12, 1151.

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