Soft templated mesoporous carbons: Tuning the porosity for the adsorption of large organic pollutants

Mesoporous carbons have been the subject of various studies, both fundamental and applied. Fundamental studies revealed numerous synthesis routes which can adjust material characteristics as specific surface area, pore volume, pore size or morphology and elemental composition. The indirect synthesis...

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Vydáno v:Carbon (New York) Ročník 116; s. 528 - 546
Hlavní autoři: Libbrecht, Wannes, Verberckmoes, An, Thybaut, Joris W., Van Der Voort, Pascal, De Clercq, Jeriffa
Médium: Journal Article
Jazyk:angličtina
Vydáno: New York Elsevier Ltd 01.05.2017
Elsevier BV
Témata:
Activated carbon
Adsorbents
Adsorption
Assembly
Block copolymers
Carbon
Catalysis
catalytic activity
Chemical composition
Complexity
composite polymers
Cost engineering
Doping
Electrochemistry
elemental composition
energy
Energy storage
Mathematical morphology
Morphology
nanoparticles
Pollutants
Polymerization
Pore size
Porosity
porous media
Reaction kinetics
Separation
surface area
Surface properties
Surface stability
Surfactants
Synthesis
Tuning
ISSN:0008-6223, 1873-3891
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Shrnutí:Mesoporous carbons have been the subject of various studies, both fundamental and applied. Fundamental studies revealed numerous synthesis routes which can adjust material characteristics as specific surface area, pore volume, pore size or morphology and elemental composition. The indirect synthesis or hard template method was developed first. An extensive collection of template materials exist, which can be impregnated with carbon precursors to provide various hard templated mesoporous carbons with a precise control of mesoporosity and pore geometry. However, the more recent direct method or soft template method offers some specific advantages. By using the organic-organic self-assembly between polymerizable precursors and block copolymer surfactants as structure directing agents it is possible to obtain tunable morphology and surface properties, mechanical stability and reduce the number of synthesis steps, thereby decreasing synthesis cost and complexity. Applied studies valorize this wide variety of mesoporous carbons. Fine-tuning material characteristics as surface area, pore volume, pore size, morphology, chemical composition or possible post-modification or nanoparticle doping give rise to applications in catalysis, electrochemistry, energy storage, separation or adsorption. In adsorption, mesoporous carbons are considered as a new family of adsorbents challenging the well-known activated carbon by introducing the advantage of increasing pore size. This allows mesoporous carbons to adsorb larger molecules and enhance the adsorption kinetics. In this review we present the most recent achievements and advances in the synthesis of soft templated mesoporous carbons, with focus on pore size control, and their potential as a new family of carbon adsorbents.
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ISSN:0008-6223
1873-3891
DOI:10.1016/j.carbon.2017.02.016