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Type: Artigo de periódico
Title: Enhanced Materials From Nature: Nanocellulose From Citrus Waste
Author: Marino
Mayra; da Silva
Lucimara Lopes; Duran
Nelson; Tasic
Abstract: Nanocellulose is a relatively inexpensive, highly versatile bio-based renewable material with advantageous properties, including biodegradability and nontoxicity. Numerous potential applications of nanocellulose, such as its use for the preparation of high-performance composites, have attracted much attention from industry. Owing to the low energy consumption and the addition of significant value, nanocellulose extraction from agricultural waste is one of the best alternatives for waste treatment. Different techniques for the isolation and purification of nanocellulose have been reported, and combining these techniques influences the morphology of the resultant fibers. Herein, some of the extraction routes for obtaining nanocellulose from citrus waste are addressed. The morphology of nanocellulose was determined by Scanning Electron Microscopy (SEM) and Field Emission Scanning Electron Microscopy (FESEM), while cellulose crystallinity indexes (CI) from lyophilized samples were determined using solid-state Nuclear Magnetic Resonance (NMR) and X-Ray Diffraction (XRD) measurements. The resultant nanofibers had 55% crystallinity, an average diameter of 10 nm and a length of 458 nm.
Subject: Cellulose Fibers
Steam Explosion
Microfibrillated Cellulose
Microcrystalline Cellulose
Orange Waste
Country: BASEL
Editor: MDPI AG
Rights: aberto
Identifier DOI: 10.3390/molecules20045908
Date Issue: 2015
Appears in Collections:Unicamp - Artigos e Outros Documentos

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