Permanent adsorption of organic solvents in graphite oxide and its effect on the thermal exfoliation

Barroso‐Bujans, Fabienne; Cerveny, Silvina; Verdejo, Raquel; Val, J. J. del; Alberdi, J. M.; Alegría, Ángel; Colmenero, Juan

doi:10.1016/j.carbon.2009.11.029

Cited by 104 publications

(49 citation statements)

References 31 publications

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“…The weight loss and the temperature at which it was produced were similar to others reported for GO prepared by this method [26] [30]. The thermogravimetric profile of Pd/GOEG was shifted to lower degradation temperature, 489 K, and the weight loss at this stage was similar to that of GO.…”

Section: Characterizationsupporting

confidence: 69%

Synthesis of palladium nanoparticles over graphite oxide and carbon nanotubes by reduction in ethylene glycol and their catalytic performance on the chemoselective hydrogenation of para-chloronitrobenzene

Dongil

Pastor‐Pérez

Fierro

et al. 2016

Applied Catalysis A: General

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A.Sepúlveda-Escribano, Synthesis of palladium nanoparticles over graphite oxide and carbon nanotubes by reduction in ethylene glycol and their catalytic performance on the chemoselective hydrogenation of para-chloronitrobenzene., Applied Catalysis A, General http://dx.doi.org/10.1016/j.apcata. 2015.11.048 This is a PDF file of an unedited manuscript that has been accepted for publication. As a service to our customers we are providing this early version of the manuscript. The manuscript will undergo copyediting, typesetting, and review of the resulting proof before it is published in its final form. Please note that during the production process errors may be discovered which could affect the content, and all legal disclaimers that apply to the journal pertain. Synthesis of palladium nanoparticles Graphical abstractHighlights  The synthesis of palladium nanoparticles by reduction of the organometallic precursor Pd (acac)2 with ethylene glycol and their deposition over carbon nanotubes (CNT) and graphite oxide (GO) was studied. Well-dispersed metallic palladium nanoparticles of similar average size were obtained over Pd/CNTEG and Pd/GOEG, this suggesting that the morphology and surface chemistry do not affect the size of the nanoparticles obtained by this methodology  The catalytic performance of Pd/CNTEG and Pd/GOEG was studied on the parachloronitrobenzene chemoselective hydrogenation and compared with analogous catalysts prepared by traditional impregnation. The activity of Pd/CNTEG and Pd/GOEG was higher than that obtained with the catalysts prepared by impregnation and both catalysts could be reused on successive cycles.

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Section: Characterizationsupporting

confidence: 69%

Synthesis of palladium nanoparticles over graphite oxide and carbon nanotubes by reduction in ethylene glycol and their catalytic performance on the chemoselective hydrogenation of para-chloronitrobenzene

Dongil

Pastor‐Pérez

Fierro

et al. 2016

Applied Catalysis A: General

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“…On the surface of GO, large amounts of polar groups exist, such as carboxyl, hydroxyl and epoxy groups, which endow it extremely hydrophilicity [11]. Graphene and GO have been reported as effective adsorbents to adsorb hazardous substances in wastewater such as dyes [12,13] and antibiotics [14,15]. However, pure graphene and GO have tiny size, excellent chemistry stability and dispersibility in water, which make them difficult to be removed from water and can form secondary pollution.…”

Section: Introductionmentioning

confidence: 99%

Highly effective removal of basic fuchsin from aqueous solutions by anionic polyacrylamide/graphene oxide aerogels

Yang

et al. 2015

Journal of Colloid and Interface Science

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“…[11][12][13][14][15] It is also reported that graphene and its derivatives are very effective adsorbents for noxious gases (such as nitrogen dioxide, ammonia, formaldehyde and carbon monoxide), [16][17][18][19] heavy metals (such as Pb, Cd, Hg and Cu), 20 [24][25][26] As a precursor for graphene preparation, GO can be obtained through the strong oxidation of graphite by modified Hummers method. 27 Large quantities of oxygencontaining groups such as epoxy, hydroxyl and carboxyl groups, 28 are present on the surface of GO, which make it extremely hydrophilic and easily apply in the aquatic environment. Graphene and GO have shown excellent adsorption ability to micro-pollutants in aqueous solutions.…”

Section: Introductionmentioning

confidence: 99%

Adsorption of Methylene Blue from Aqueous Solutions by Polyvinyl Alcohol/Graphene Oxide Composites

Yang¹,

Li²,

Du³

et al. 2016

j nanosci nanotechnol

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As a new member of the carbon family, graphene oxide (GO) has shown excellent adsorption ability to micro-pollutants in aqueous solutions. However, its tiny size makes it difficult to be removed from aqueous solutions using the conventional separation methods, which limits its practical application in the environmental protection. In this study, polyvinyl alcohol (PVA) was used as carrier immobilizing GO, and novel PVA/GO composites were prepared. The morphology and physicochemical properties of the composites were characterized by SEM, FTIR and TGA analysis. The adsorption properties of methylene blue (MB) onto the composites were studied through investigating the experimental parameters such as solution pH, adsorbent dosage, contact time and temperature. The isotherm data were analyzed using the Langmuir, Freundlich and Dubinin-Radushkevich models. The calculated maximum adsorption capacity reached 476.2 mg/g at 50% GO content. The pseudo-first-order kinetic, pseudo-second-order kinetic and intra-particle diffusion models were used to explore the adsorption kinetics. The results showed that the dynamic data were fitted to the pseudo-second-order kinetic model.

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Permanent adsorption of organic solvents in graphite oxide and its effect on the thermal exfoliation

Cited by 104 publications

References 31 publications

Synthesis of palladium nanoparticles over graphite oxide and carbon nanotubes by reduction in ethylene glycol and their catalytic performance on the chemoselective hydrogenation of para-chloronitrobenzene

Synthesis of palladium nanoparticles over graphite oxide and carbon nanotubes by reduction in ethylene glycol and their catalytic performance on the chemoselective hydrogenation of para-chloronitrobenzene

Highly effective removal of basic fuchsin from aqueous solutions by anionic polyacrylamide/graphene oxide aerogels

Adsorption of Methylene Blue from Aqueous Solutions by Polyvinyl Alcohol/Graphene Oxide Composites

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