Synthesis, characterization and dye removal capacities of N-doped mesoporous carbons

Sánchez-Sánchez, Á.; Suárez-Garcı́a, Fabián; Martı́nez-Alonso, A.; Tascón, J.M.D.

doi:10.1016/j.jcis.2015.02.073

Cited by 85 publications

(31 citation statements)

References 56 publications

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“…By conducting an XPS study, the authors observed that 50% of the nitrogen existed as quaternary nitrogen, 40% as pyridinic or pyrrolic groups and only 7% belonged to oxidized forms of nitrogen. Sanchez et al[147] also proposed the chemical vapour deposition from acetonitrile as suitable technique to prepare functionalized carbon materials. An SBA-15 was infiltrated at 850 ºC with an acetonitrile/argon flow with different concentrations (3 to 8.8 % v/v).…”

mentioning

confidence: 99%

Nanostructured mesoporous carbons: Tuning texture and surface chemistry

Enterría

Figueiredo

2016

Carbon

155

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mentioning

confidence: 99%

Nanostructured mesoporous carbons: Tuning texture and surface chemistry

Enterría

Figueiredo

2016

Carbon

155

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“…This indicates that N-6, N-5 and N-Q could participate in the reaction and converted to N-X during the adsorption process. This phenomenon might be related to the occupation of basic functional groups (pyridine-N) during the adsorption process, which could attract phenolic hydroxyl and sulfonic group in AR88 by electrostatic interaction 38 . Normally, pyridine-N is bonded to two neighbouring C atoms with the location along with the edges of the carbon planes, which are considered as Lewis bases and readily interact with the acidic AR88 molecules 39 .…”

Section: Pan-mesoporous Carbon 309mentioning

confidence: 99%

Preparation of a novel nitrogen-containing graphitic mesoporous carbon for the removal of acid red 88

Zhou

Chen

Jiang

et al. 2020

Sci Rep

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A novel nitrogen-containing graphitic mesoporous carbon was prepared through Mno-templated method using polyacrylonitrile (PAN) as both carbon and nitrogen sources, and MnCO 3 as both template and catalyst precursors. The effects of preparation conditions on the physicochemical properties of obtained samples were systematically investigated. the results showed that as the decrease of the weight ratios of PAN and MnO (2:1-1:4), the increase of carbonization temperature (700-900 °C) and pre-oxidation temperature (180-200 °C), the samples had higher specific surface area, mesopores volume and ratios, up to 507 m 2 /g, 0.824 cm 3 /g and 96.83%, respectively. Moreover, the prepared samples presented relatively high graphitic degree and nitrogen contents (~2.21%). The adsorption capacity for acid red 88 (AR88) was as high as 309 mg/g, which were dramatically affected by the mesoporous properties and c-and n-containing groups on the surface of prepared carbon. the rich graphic carbon and pyridine-n in mesoporous carbon generated π-π dispersion and electrostatic interaction with AR88, respectively, which jointly were responsible for the adsorption process. The results of the isotherm and kinetic studies indicated that the AR88 adsorption on mesoporous carbon could be well depicted using Langmuir model and pseudo-2 nd -order model.Recently, the demand for dyes is increasing, with the fast development of industries, including textile, printing, paper making, cosmetic, etc. The dye wastewater has gradually become one of the vital pollutants, which seriously affects both human beings' health and environment. Thus, it is significantly important for the removal of dye pollutants from wastewater before discharging into environment. However, it is a great challenge to treat dye wastewater, because of its high resistance to photo-degradation, oxidation and bio-degradation 1 . It was reported that the adsorption by mesoporous carbon (i.e. pores size from 2 to 50 nm) is a desirable method for the removal of dye pollutants with large molecules diameters, with many advantages such as easy operation, high efficiency, and the recycle of dye 2-4 . In comparison with the microporous adsorbent, the mesoporous carbon possessed higher adsorption capacity for the large dye molecules 5-7 . The adsorption rate could also be significantly enhanced by introducing the mesoporous structure into the carbon materials 8 .Normally, various hard templates including zeolites, mesoporous silica are used to prepare the mesoporous carbon by removing these ordered structural frameworks. This strategy has been given extensive attention in the literature due to the high stability of templates and precise control for porous structure 9 . However, when removing these hard templates, some strong corrosive agents like hydrofluoric acid and sodium hydroxide are used, which will always cause unavoidable corrosion, and the templates are obliged to be wasted 10 . In this way, the high preparation cost of the template method seriously hinders its application in practi...

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“…It is always expected to decorate elements other than carbon to alter their performance in battery electrodes, [17,18] catalysis, [22,23] contaminant adsorption, [19] etc. Since the ligand in MOF can contain other heteroelements such as N in Zeolite-imidazole frameworks (ZIFs), some of the MOFs can directly serve as precursors for N-doped carbons, therefore attracting vast attention from researchers.…”

Section: Non-metal Doped Porous Carbonmentioning

confidence: 99%

“…[6,7] MOFs have intrinsic advantages of high porosity [8,9] and tailorable structure diversity, [10][11][12][13][14][15] which not only make them suitable for generating various porous materials but also provide infinite possibility in producing porous carbons with diverse decoration. Decorated carbons such as N-doped carbons and metal/metal oxide loaded carbons always possess enhancement in the performances of electrode [16,17] and absorbent, [18][19][20][21] or are capable of numerous kinds of catalysis reactions (including electrocatalysis process). [6,7,[22][23][24] Before the utilization of MOFs, porous carbons had been already synthesized in extensive methods, [25] including chemical activation, [26] pyrolysis of organic precursor, [27] carbonization of polymer aerogel [28,29] and nano-casting technique.…”

Section: Introductionmentioning

confidence: 99%

Metal‐Organic Frameworks Derived Porous Carbons: Syntheses, Porosity and Gas Sorption Properties

Pei

Chen

et al. 2016

Chin. J. Chem.

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Porous carbon materials derived from metal-organic frameworks (MOFs) have been brought into stage due to the intrinsic advantages of MOFs such as high porosity and tailorable structure diversity, which might provide infinite possibility in producing porous carbons with diverse structures and various decorations. Inherited from MOFs, the porosity in carbon materials is an important factor to evaluate the performances of porous carbons (e.g. gas sorption properties, electrochemical and catalytic behaviors). Factors that affect the porosity of porous carbon materials are mainly focused on the porosity of pristine MOFs, additives and conducting conditions. However, during past decades there were still no systematical reports on the influence factors of porosity in MOFs derived porous carbon materials and corresponding gas sorption properties. In this review, we will summarize the performances of MOF-derived carbon materials (i.e. non-doped porous carbons, heteroatoms doped porous carbons, metal/metal oxide decorated porous carbons) and give a detailed discussion about the connections between the properties and four major effects (calcination temperature, loading of additional precursor, post-synthetic treatment as well as intrinsic properties of MOFs).

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Synthesis, characterization and dye removal capacities of N-doped mesoporous carbons

Cited by 85 publications

References 56 publications

Nanostructured mesoporous carbons: Tuning texture and surface chemistry

Nanostructured mesoporous carbons: Tuning texture and surface chemistry

Preparation of a novel nitrogen-containing graphitic mesoporous carbon for the removal of acid red 88

Metal‐Organic Frameworks Derived Porous Carbons: Syntheses, Porosity and Gas Sorption Properties

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