Plasma-surface modification vs air oxidation on carbon obtained from peach stone: Textural and chemical changes and the efficiency as adsorbents

Maldonado, Paola S. De Velasco; Hernández‐Montoya, Virginia; Montes-Morán, Miguel A.

doi:10.1016/j.apsusc.2016.05.018

Cited by 30 publications

(14 citation statements)

References 55 publications

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“…Besides the common AC and ACF, biochar (BC) and various carbon nanomaterials also show good adsorption potentials. BC, as a kind of porous solid materials with carbon, can be easily attained via diverse biomass pyrolyses, such as wood, [ 27 ] straw, [ 4,28 ] peach stones, [ 29,30 ] seaweed, [ 31 ] and other terrestrial or marine biomass and biomass wastes. BC is similar with AC, or there is no clear boundary between them in the studies and utilization of them in heavy metal adsorption.…”

Section: Introductionmentioning

confidence: 99%

An overview of low‐temperature plasma surface modification of carbon materials for removal of pollutants from liquid and gas phases

Huang

et al. 2020

Plasma Processes & Polymers

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As a promising surface treatment technique, low‐temperature plasma (LTP) technology has been widely used over the past two decades. Herein, the surface modification of carbon materials using LTP treatment is reviewed to clarify the modification effects. First, the basic details of LTP treatment are summarized. Second, the surface morphology, pore structure, surface chemistry, adsorption performance, and catalytic characteristics of LTP‐treated carbon materials are reviewed. Finally, the research required to further develop LTP technology for the surface modification of carbon materials is discussed. This review will contribute toward advancing the application of LTP‐treated carbon materials in environmental pollution control.

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Section: Introductionmentioning

confidence: 99%

An overview of low‐temperature plasma surface modification of carbon materials for removal of pollutants from liquid and gas phases

Huang

et al. 2020

Plasma Processes & Polymers

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“…Surface modification of the PNS and PS was carried out by oxidation with cold oxygen plasma. 14 The oxidation was performed in an Emitech K1050X plasma reactor (Kirby le Soken, UK) where oxygen was excited using radiofrequency (RF) energy (13.56 MHz). The plasma was maintained at 1 mbar by flowing oxygen into the reaction chamber.…”

Section: Synthesis Of Oxidized Carbon-based Materials With Cold Oxygementioning

confidence: 99%

Cold oxygen plasma induces changes on the surface of carbon materials enhancing methanogenesis and N₂O reduction in anaerobic sludge incubations

Velasco‐Maldonado

Pat-Espadas

Cházaro-Ruiz

et al. 2019

J of Chemical Tech & Biotech

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BACKGROUND Conductive materials, such as activated carbon (AC), graphene and biochar, have recently been applied for enhancing methane (CH4) production in anaerobic digesters. However, few efforts have been made to develop engineered conductive materials for these purposes. The aim of this work was to synthesize carbon materials from pecan nut shells and peach stones to apply them in anaerobic sludge incubations for enhancing the methanogenic activity, as well as the reduction of nitrous oxide (N2O). RESULT Addition of conductive materials increased up to six‐fold the maximum CH4 production rate. Moreover, oxidation of these carbon materials with cold oxygen plasma enriched their surface with redox functional groups (e.g. quinones), so that their application further increased the methanogenic production rate up to 11‐fold as compared to controls lacking conductive materials. Furthermore, the reduction rate of N2O was increased several orders of magnitude in the presence of synthesized carbon materials, which constitutes the first demonstration that conductive materials can significantly increase the reduction rate of this greenhouse gas. CONCLUSION Results indicate that there is great potential to develop engineered conductive materials to enhance both the production of CH4 and the reduction of N2O from wastewater treatment plants (WWTP), which may contribute to achieve more efficient processes. © 2019 Society of Chemical Industry

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“…More detailed description of the carbon oxidation can be found in following review . The surface of carbon fibers can be also oxidized via electrochemical, and low‐temperature plasma treatments ,…”

Section: Introductionmentioning

confidence: 99%

“…[23] The surface of carbon fibers can be also oxidized via electrochemical [24,25] and low-temperature plasma treatments. [26,27] The surface oxidized carbon materials are commonly used in the removal of heavy metal ions from aqueous solutions. The oxygen-containing groups, e.g.…”

Section: Introductionmentioning

confidence: 99%

Carbon Fibers Obtained from Flax and Their Adsorption Performance in the Removal of Cu(II) and Co(II) from Aqueous Solutions

2018

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The systematic studies on oxidation of carbon fibers with nitric acid are presented. The carbon fibers were synthesized from the low‐cost and natural stock (flax fibers) via the controlled carbonization. The non‐oxidized and surface oxidized carbon fibers were thoroughly characterized by means of electron microscopy, FT‐IR spectroscopy, thermogravimetry, point of zero charge determination, Boehm titration and nitrogen adsorption at 77K. The second part of this work was focused on the evaluation of adsorption properties of oxidized carbon fibers and their potential in the removal of copper(II) and cobalt(II) ions from aqueous solutions. The obtained results bring a conclusion that the concentration of nitric acid is a key parameter which drives the content of oxygen surface groups, thermal stability and adsorption performance of carbon fibers. The obtained oxidized carbon fibers were found to be prospective adsorbents of CuII and CoII from aqueous solutions.

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Plasma-surface modification vs air oxidation on carbon obtained from peach stone: Textural and chemical changes and the efficiency as adsorbents

Cited by 30 publications

References 55 publications

An overview of low‐temperature plasma surface modification of carbon materials for removal of pollutants from liquid and gas phases

An overview of low‐temperature plasma surface modification of carbon materials for removal of pollutants from liquid and gas phases

Cold oxygen plasma induces changes on the surface of carbon materials enhancing methanogenesis and N₂O reduction in anaerobic sludge incubations

Carbon Fibers Obtained from Flax and Their Adsorption Performance in the Removal of Cu(II) and Co(II) from Aqueous Solutions

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Plasma-surface modification vs air oxidation on carbon obtained from peach stone: Textural and chemical changes and the efficiency as adsorbents

Cited by 30 publications

References 55 publications

An overview of low‐temperature plasma surface modification of carbon materials for removal of pollutants from liquid and gas phases

An overview of low‐temperature plasma surface modification of carbon materials for removal of pollutants from liquid and gas phases

Cold oxygen plasma induces changes on the surface of carbon materials enhancing methanogenesis and N2O reduction in anaerobic sludge incubations

Carbon Fibers Obtained from Flax and Their Adsorption Performance in the Removal of Cu(II) and Co(II) from Aqueous Solutions

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Cold oxygen plasma induces changes on the surface of carbon materials enhancing methanogenesis and N₂O reduction in anaerobic sludge incubations