Next Article in Journal / Special Issue
Evaluation of Biological Pretreatment of Rubberwood with White Rot Fungi for Enzymatic Hydrolysis
Previous Article in Journal
Adsorption Properties of Doxorubicin Hydrochloride onto Graphene Oxide: Equilibrium, Kinetic and Thermodynamic Studies
Previous Article in Special Issue
Production and Characterization of a New Bacterial Cellulose/Poly(Vinyl Alcohol) Nanocomposite
Open AccessArticle

Posidonia oceanica as a Renewable Lignocellulosic Biomass for the Synthesis of Cellulose Acetate and Glycidyl Methacrylate Grafted Cellulose

Department of Chemistry, Materials and Chemical Engineering "G. Natta", Politecnico di Milano, via Mancinelli 7, Milan 20131, Italy
*
Author to whom correspondence should be addressed.
Materials 2013, 6(5), 2043-2058; https://doi.org/10.3390/ma6052043
Received: 18 February 2013 / Revised: 2 May 2013 / Accepted: 7 May 2013 / Published: 15 May 2013
(This article belongs to the Special Issue Advances in Cellulosic Materials)
High-grade cellulose (97% α-cellulose content) of 48% crystallinity index was extracted from the renewable marine biomass waste Posidonia oceanica using H2O2 and organic peracids following an environmentally friendly and chlorine-free process. This cellulose appeared as a new high-grade cellulose of waste origin quite similar to the high-grade cellulose extracted from more noble starting materials like wood and cotton linters. The benefits of α-cellulose recovery from P. oceanica were enhanced by its transformation into cellulose acetate CA and cellulose derivative GMA-C. Fully acetylated CA was prepared by conventional acetylation method and easily transformed into a transparent film. GMA-C with a molar substitution (MS) of 0.72 was produced by quenching Fenton’s reagent (H2O2/FeSO4) generated cellulose radicals with GMA. GMA grafting endowed high-grade cellulose from Posidonia with adsorption capability. GMA-C removes β-naphthol from water with an efficiency of 47%, as measured by UV-Vis spectroscopy. After hydrolysis of the glycidyl group to glycerol group, the modified GMA-C was able to remove p-nitrophenol from water with an efficiency of 92%, as measured by UV-Vis spectroscopy. α-cellulose and GMA-Cs from Posidonia waste can be considered as new materials of potential industrial and environmental interest. View Full-Text
Keywords: Posidonia oceanica; egagropili; high grade cellulose; crystallinity index; cellulose acetate; glycidyl methacrylate grafted cellulose; wastewater treatment Posidonia oceanica; egagropili; high grade cellulose; crystallinity index; cellulose acetate; glycidyl methacrylate grafted cellulose; wastewater treatment
Show Figures

Graphical abstract

MDPI and ACS Style

Coletti, A.; Valerio, A.; Vismara, E. Posidonia oceanica as a Renewable Lignocellulosic Biomass for the Synthesis of Cellulose Acetate and Glycidyl Methacrylate Grafted Cellulose. Materials 2013, 6, 2043-2058.

Show more citation formats Show less citations formats

Article Access Map by Country/Region

1
Only visits after 24 November 2015 are recorded.
Back to TopTop