Preparation and characterization of expanded graphite intercalation compound/UV-crosslinked acrylic resin pressure sensitive adhesives

The present paper describes an investigation of the adsorption of lead ions (Pb2+) on graphene-based nanocomposites obtained via exfoliation of hydrolyzed expanded graphite intercalation compound. Three types of these nanocomposites - suspension of graphene nanoplatelets (SGN), paste of multi-layered oxidized graphene (PMOG), and paste of few-layered oxidized graphene (PFOG) - were used to extract Pb2+ from 1,040 mg L-1 aqueous solutions of Pb (NO3)2, and the kinetic of the Pb2+ adsorption was studied. It was found that the kinetic data are best fitted by the pseudo-second-order model. The adsorption equilibrium was achieved within 30 min under normal conditions. The maximum Pb2+ adsorption capacity of SGN, PMOG and PFOG was found to be 457, 103 and 38 mg g-1, respectively. Considering the obtained results, it can be assumed that the phenolic and hydroxyl oxygen-containing functional groups located at the surface of the adsorption materials under study play an important role in the Pb2+ removal process.

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Structural Evolution of Natural Flake Graphite during Intercalation and Exfoliation

Applied Mechanics and Materials ◽

10.4028/www.scientific.net/amm.552.328 ◽

2014 ◽

Vol 552 ◽

pp. 328-330

Author(s):

Zhi Guo Liu

Keyword(s):

Intercalation Compound ◽

Structural Evolution ◽

Expanded Graphite ◽

Expandable Graphite ◽

Flake Graphite ◽

Graphite Intercalation Compound ◽

X Ray Diffraction ◽

Natural Graphite ◽

X Ray ◽

Graphite Intercalation

In order to investigate the structural evolution of natural flake graphite during intercalation and exfoliation, natural graphite flakes were treated by intercalating, water-washing, drying and expanding. The corresponding products, graphite intercalation compound (GIC), residue GIC (expandable graphite) and expanded graphite were characterized by X-ray diffraction (XRD). The results can provide reference for the research in this field.

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Synthesis and characterization of a new lithium-rich graphite intercalation compound: Li2C6Oy (y≈0.5)

New Journal of Chemistry ◽

10.1039/a804644a ◽

1998 ◽

Vol 22 (12) ◽

pp. 1417-1420 ◽

Cited By ~ 2

Author(s):

Denis Billaud ◽

L Thevenot ◽

P Willmann

Keyword(s):

Intercalation Compound ◽

Synthesis And Characterization ◽

Graphite Intercalation Compound ◽

Graphite Intercalation

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ChemInform Abstract: Synthesis and Characterization of a Graphite Intercalation Compound with Rubidium Double Layers.

ChemInform ◽

10.1002/chin.199443023 ◽

2010 ◽

Vol 25 (43) ◽

pp. no-no

Author(s):

C. HEROLD ◽

M. EL GADI ◽

J.-F. MARECHE ◽

P. LAGRANGE

Keyword(s):

Intercalation Compound ◽

Double Layers ◽

Synthesis And Characterization ◽

Graphite Intercalation Compound ◽

Graphite Intercalation

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Preparation and Characterization of the C2H5COOH-Graphite Intercalation Compound

Advanced Materials Research ◽

10.4028/www.scientific.net/amr.734-737.2181 ◽

2013 ◽

Vol 734-737 ◽

pp. 2181-2186 ◽

Cited By ~ 2

Author(s):

Ming Shan Zhou ◽

Jian Cai Xia

Keyword(s):

Raw Materials ◽

Intercalation Compound ◽

Chemical Oxidation ◽

Graphite Intercalation Compound ◽

Structure And Properties ◽

Mass Ratio ◽

Natural Graphite ◽

Graphite Intercalation ◽

Composition Structure

The graphite intercalation compound with easy low temperature exfoliated and high exfoliated volume was prepared by chemical oxidation method using natural graphite flakes, C2H5COOH, FeCl3 and CrO3 as raw materials, according to the mass ratio of 1:2.8:0.3:0.2. The expansion volume of graSubscript textphite intercalation compounds was 320 mL•g-1 at 300°C and achieved biggest 580 mL•g-1 at 700°C. The composition, structure and properties of the graphite intercalation compound were characterized and analyzed by SEM, FTIR, XRD, TG, DSC, VSM techniques. Results showed that the intercalant of graphite sandwich were C2H5COO- and FeCl3.

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