One-pot hydrothermal preparation of graphene sponge for the removal of oils and organic solvents

Wu, Ruihan; Yu, Baowei; Liu, Xiaoyang; Li, Hongliang; Wang, Weixuan; Chen, Lingyun; Bai, Yitong; Zhu, Ming; Yang, Shengrong

doi:10.1016/j.apsusc.2015.11.215

Cited by 80 publications

(38 citation statements)

References 45 publications

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“…This formula is equivalent to formula (5) and is needed to check the correlation with another independent parameter -the thickness t obtained from the XRD data.…”

Section: Resultsmentioning

confidence: 99%

“…It can be explained by a variety of morphological properties of carbon materials known as activated carbons, carbon blacks and carbon nanotubes, cones, fibres, bulbs, graphenes, graphene aerogels, foams and sponges [4], [5].…”

Section: Introductionmentioning

confidence: 99%

“…Among the attractive applications, graphene sponges have been used as adsorbents for various pollutants [5]. For instance, less than 3.5 kg graphenic carbon foam can absorb 1 ton petroleum, promising great potential in the applications of oil spill and pollution treatments [7].…”

Section: Introductionmentioning

confidence: 99%

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Nitrogen Adsorption on Graphene Sponges Synthesized by Annealing a Mixture of Nickel and Carbon Powders

Grehov

Kalnacs

Mishnev

et al. 2017

Latvian Journal of Physics and Technical Sciences

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Adsorption by graphene sponge (GS) manufactured by annealing nickel-carbon powder mixture in inert atmosphere has been studied. By determining the specific surface area (SSA) for the GS sample, it has been found that Brunauer, Emmett, Teller method (BET) of approximation of experimental isotherms gives wrong results in the pressure range of 0.025-0.12 because adsorption in this pressure region is affected by walls of ampoule. Real SSA value has been found by subtracting pore effect method (SPE) or by BET approximation in a low range of relative pressure of 0.0004-0.002.

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“…This formula is equivalent to formula (5) and is needed to check the correlation with another independent parameter -the thickness t obtained from the XRD data.…”

Section: Resultsmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

See 1 more Smart Citation

Nitrogen Adsorption on Graphene Sponges Synthesized by Annealing a Mixture of Nickel and Carbon Powders

Grehov

Kalnacs

Mishnev

et al. 2017

Latvian Journal of Physics and Technical Sciences

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“…This separation mechanism is highly used in wastewater treatment [1], drying processes [2], heterogeneous catalysis [3], among others. Some important uses are the adsorption of vapors in a gaseous stream using silica gel [4], elimination of odors using activated carbon [5], recovering solvents from the ambient air [6], adsorption of contaminants using biomass [7], etc. The most important use of this mechanism of separation is in the environmental care due to the increase in contaminants all over the world caused by a large number of new products emerging daily.…”

Section: Introductionmentioning

confidence: 99%

Scientific literature addressing adsorption processes: A 10-year bibliometric analysis

Quiñones¹,

Forero²,

Ochoa³

2018

ces

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Adsorption is an important separation process highly used in industries and in research institutions. The study of adsorption processes has increased during the last years due to the need to help the environment by removing contaminants from wastewater, especially heavy metals. However, there are other applications like heterogeneous catalysis, adsorption chillers, and synthetic resins. In order to give a valuable research contribution, it is necessary to determine the direction of science in the area of the adsorption process. It was performed a research evolution of adsorption processes for the period of 2007-2017, using the HistCiteTM software.

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“…Most methods are relatively complicated and practically high-cost. Although various spongy graphene have been fabricated for removing heavy metals [7], oils [8], and water contaminants [9,10], they are scarcely reported for the investigation of uranium removal.…”

Section: Introductionmentioning

confidence: 99%

Uranium uptake with graphene oxide sponge prepared by facile EDTA-assisted hydrothermal process

Liu

Zhang

Dao-feng

et al. 2016

Int. J. Energy Res.

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Summary Seeking highly efficient and low‐cost sorbents to removal uranium contaminants is of great concern in demand. In present work, a graphene oxide sponge (GOS) was successfully assembled by a facile Ethylenediaminetetraacetic acid (EDTA)‐assisted hydrothermal method from graphene oxide (GO) sheets. The prepared GOS was characterized, and the influencing factors on uranium sorption were optimized. Results indicate that the GOS shows a spongy porous structure and significantly enhances the U(VI) removal compared with the pristine GO. Langmuir model well describes the equilibrium sorption data. Under experimental conditions, the maximal uranium sorption calculated from Langmuir model was found to be 212.77 mg · L−1. Sorption kinetics data are matched with pseudo‐second‐order model. Reusability experiments indicate that the prepared GOS can be regenerated using dilute acid treatment and be used repeatedly. The simple and low‐cost preparation of GOS predicts the potential applications of spongy GO as an effective sorbent for U(VI) capture and also expands the possibility of using graphene‐based sorbent in the disposal of liquid radioactive waste. Copyright © 2016 John Wiley & Sons, Ltd.

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One-pot hydrothermal preparation of graphene sponge for the removal of oils and organic solvents

Cited by 80 publications

References 45 publications

Nitrogen Adsorption on Graphene Sponges Synthesized by Annealing a Mixture of Nickel and Carbon Powders

Nitrogen Adsorption on Graphene Sponges Synthesized by Annealing a Mixture of Nickel and Carbon Powders

Scientific literature addressing adsorption processes: A 10-year bibliometric analysis

Uranium uptake with graphene oxide sponge prepared by facile EDTA-assisted hydrothermal process

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