Abstract
The aim of the present work is to follow the capacity of adsorption of CO2 by natural cellulose nanofibers, extracted from banana peel and mixed with nano-silver. Following initial characterization, the raw material and the isolated sample were investigated by Energy Dispersive Analysis (EDS), X-ray diffraction (XRD); Fourier- Transformed infrared spectroscopy (FT-IR) and thermal analysis (Hi Res TG). Nitrogen gas adsorption-desorption isotherms of isolated cellulose nanofibers reveal a type I- isotherm, specific to the nano-porous materials.The results of adsorption isotherms of CO2 at 304 K showed that the extracted sample exhibit an adsorption capacity of 12 mmol/g of CO2.
Highlights
New materials obtained from natural, low-cost and renewable resources have seen significant attention to the materials scientists with environmental friendliness (Abraham et al, 2011)
Figure 2. indicates scanning electron microscope (SEM) images of the Bran (Figure 2.(a-b)); cellulose nanofibers (CNF) (Figure 2.(c-d)) and CNF-Ag (Figure 2.(e-f)).The results showed that the initial sample contains heterogeneous surface and some residues
The results showed that the adsorbent CNF-Ag exhibits an adsorption capacity of 12 mmol/g of CO2 at 304 K, which was much better than that of other conventional adsorbents (e.g Charbon actif Maxsorb, Charbon actif NORIT R1, Zeolithe 13X,...)
Summary
New materials obtained from natural, low-cost and renewable resources have seen significant attention to the materials scientists with environmental friendliness (Abraham et al, 2011). The materials isolated from the renewable bio-resources could be the alternative of petroleum based synthetic products due to their advantages of, easy availability, environmental friendly, nontoxicity renewability and relatively low cost .In this sense, plant fibers, which are a primary source of natural fibers, constitute rich sources of cellulose, the principal component of plant cell walls (Lavoine et al.,2012). The industrialization produces and process of banana cultivation have a massive amount of cellulose-rich residues and the utilization of this biomass help to minimize the environmental pollution and increase value to the cellulose byproduct. In this context, research including this fruit and studding sustainable development has been encouraged the banana peel is a potential source of cellulosic fiber. A natural material which has newly found applications in the production of nanomaterials (Elanthikkal et al, 2010)
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