Fabrication of transparent and ultraviolet shielding composite films based on graphene oxide and cellulose acetate

Moraes, Ana Carolina Mazarin de; Andrade, Patrícia Fernanda; Faria, Andréia Fonseca de; Simões, Marcelo Luiz; Salomão, Francisco Carlos Carneiro Soares; Barros, Eduardo B.; Gonçalves, Maria do Carmo; Alves, Oswaldo Luiz

doi:10.1016/j.carbpol.2015.01.034

Cited by 138 publications

(84 citation statements)

References 51 publications

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“…The another reason of disappearance of graphene sheet and ZnS QDs diffraction peaks may be because most of the ZnS/Graphene composites are relatively uniformly dispersed in the cellulose matrix, which conforms to the XRD results regarding other cellulose- Moraes et al 2015;Kafy et al 2015;Feng et al 2012;Ramachandran et al 2015).…”

Section: Resultssupporting

confidence: 78%

“…As one of the most abundant natural polymer materials, cellulose is widely used in the fabrication of functional nanocomposite materials, such as photoelectric materials, sensors and actuators, and flexible electronics (Luna-Martínez et al 2011;Feng et al 2012;Wang et al 2014;Moraes et al 2015;Song and Zheng 2013). Paper is the most widely used cellulose material because of its diverse forms, easy usability, stable quality, low cost, and environmentally friendliness.…”

Section: Introductionmentioning

confidence: 99%

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Preparation of cellulose-based fluorescent materials using Zinc sulphide quantum dot-decorated graphene by a one-step hydrothermal method

Bian

2016

Cellulose

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Cellulose-based fluorescent materials using Zinc sulphide (ZnS) quantum dot-decorated graphene were prepared by a one-step hydrothermal method. X-ray photoelectron spectroscopy analysis identified the chemical states of Zn, S, C, O, and N in the composite paper. Transmission electron microscopy showed that the graphite oxide was reduced to graphene sheets, and ZnS nanoparticles (\10 nm) were deposited on the surface of these sheets. Scanning electron microscopy indicated that graphene sheets were attached to the surface of paper fibers, and the paper structure and morphology of the fibers were not observably damaged during the hydrothermal reaction. The cellulose-based composite had strong ultraviolet absorption in the range of 200-340 nm, and its main absorption peak was at approximately 296 nm. The band edge emission of photoluminescence spectrum of the composite occurred at 466 nm with an excitation wavelength of 320 nm. The laser scanning confocal microscope image of the composite exhibited an intense blue fluorescence under UV light at 405 nm.

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Section: Resultssupporting

confidence: 78%

Section: Introductionmentioning

confidence: 99%

Preparation of cellulose-based fluorescent materials using Zinc sulphide quantum dot-decorated graphene by a one-step hydrothermal method

Bian

2016

Cellulose

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“…From the XRD curve of GO in Fig. 2(a), it can be seen that the appearance of strong sharp diffraction peak at 2θ = 10.96° is corresponding to the (001) plane of GO [19], which means that natural graphite has been oxidized into GO with regular crystal structure and high-degree oxidation [30]. Figure 2(b) shows the XRD pattern of SrFe 12 O 19 ; it can be seen that SrFe 12 O 19 is M-type ferrite (PDF Card no.33-1340).…”

Section: Resultsmentioning

confidence: 99%

Synthesis, Characterization, and Microwave Absorption Properties of Reduced Graphene Oxide/Strontium Ferrite/Polyaniline Nanocomposites

et al. 2016

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Strontium ferrite nanoparticles were prepared by a coprecipitation method, and reduced graphene oxide/strontium ferrite/polyaniline (R-GO/SF/PANI) ternary nanocomposites were prepared by in situ polymerization method. The morphology, structure, and magnetic properties of the ternary nanocomposites were investigated by X-ray powder diffraction (XRD), Fourier transform infrared spectroscopy (FT-IR), TEM, Raman, and VSM. The microwave-absorbing properties of the composites were measured by a vector network analyzer. The XRD patterns show the single phase of strontium hexaferrite without other intermediate phases. TEM photographs reveal that strontium ferrite nanoparticles are uniformly dispersed on the surfaces of R-GO sheets. The R-GO/SF/PANI nanocomposite exhibited the best absorption property with the optimum matching thickness of 1.5 mm in the frequency of 2–18 GHz. The value of the maximum RL was −45.00 dB at 16.08 GHz with the 5.48-GHz bandwidth. The excellent absorption properties of R-GO/SF/PANI nanocomposites indicated their great potential as microwave-absorbing materials.

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“…Recently, Moraes et al reported a UV-shielding composite lm based on graphene oxide (GO) and cellulose acetate (CA) that possessed good absorbance of UV light at wavelengths between 250 nm and 350 nm. 15 However, the mechanical strength was very low possibly due to the weak interaction between oxygen-containing groups on GO and ester groups on CA chains.…”

Section: -13mentioning

confidence: 99%

Homogeneous grafting of cellulose with polycaprolactone using quaternary ammonium salt systems and its application for ultraviolet-shielding composite films

Gao

Jiang

et al. 2018

RSC Adv.

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Microcrystalline cellulose grafted polycaprolactone (MCC-g-PCL) was successfully synthesized by ringopening copolymerization catalyzed by 4-dimethylaminopyridine in a dual tetrabutylammonium acetate/ dimethyl sulfoxide solvent system. A novel ultraviolet-shielding film based on MCC-g-PCL was prepared by introducing graphene oxide (GO). The results obtained showed that the introduction of GO not only obviously influenced the inherent structure of the MCC-g-PCL but remarkably changed the surface morphology of the composite film. Moreover, the GO/MCC-g-PCL composite showed a significant improvement in tensile strength, from 2.63 to 4.55 MPa, as well as elongation-at-break, from 6.4% to 15.5%, compared with the pure MCC-g-PCL film, owing to the strong hydrogen-bonding interaction that physically crosslinked GO with MCC-g-PCL. Importantly, GO/MCC-g-PCL composite films offered an effective high-energy light-shielding capacity; in particular MCC-g-PCL film containing 1.0 wt% GO possessed good absorbance between 200 nm and 300 nm. This study provides a framework for developing cellulose-based ultraviolet-shielding polymers and better understanding the ultravioletshielding mechanism.

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Fabrication of transparent and ultraviolet shielding composite films based on graphene oxide and cellulose acetate

Cited by 138 publications

References 51 publications

Preparation of cellulose-based fluorescent materials using Zinc sulphide quantum dot-decorated graphene by a one-step hydrothermal method

Preparation of cellulose-based fluorescent materials using Zinc sulphide quantum dot-decorated graphene by a one-step hydrothermal method

Synthesis, Characterization, and Microwave Absorption Properties of Reduced Graphene Oxide/Strontium Ferrite/Polyaniline Nanocomposites

Homogeneous grafting of cellulose with polycaprolactone using quaternary ammonium salt systems and its application for ultraviolet-shielding composite films

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