Characterisation and sorption performance of a Hypersol–Macronet polymer and an activated carbon

Tai, Ming Hang; Saha, Basudeb; Streat, M.

doi:10.1016/s1381-5148(99)00034-6

Cited by 37 publications

(23 citation statements)

References 17 publications

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“…In most cases, the data available were chemical interpretations. If this work is compared with sorption data on PAH removal by hypercrosslinked polymeric resins, the range of the apparent surface diffusivities are very close to the result reported for this specific sorbent [27,36]. The apparent surface diffusivity coefficients were compared (Table 8) with measured values of functionalized aromatic hydrocarbons such as phenol, p-bromophenol, p-nitrophenol, p-toluenesulphonate and dodecylbenzenesulphonate [37][38][39][40][41][42].…”

Section: Pore and Surface Diffusion Coefficientssupporting

confidence: 52%

Sorption kinetics of polycyclic aromatic hydrocarbons removal using granular activated carbon: Intraparticle diffusion coefficients

Valderrama¹,

Gamisans²,

Heras³

et al. 2008

Journal of Hazardous Materials

255

112

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Section: Pore and Surface Diffusion Coefficientssupporting

confidence: 52%

Sorption kinetics of polycyclic aromatic hydrocarbons removal using granular activated carbon: Intraparticle diffusion coefficients

Valderrama¹,

Gamisans²,

Heras³

et al. 2008

Journal of Hazardous Materials

255

112

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“…Toluene (10 mmol) was added to anhydrous 1,2-dichloroethane (10 mL) under a flow of nitrogen, followed by formaldehyde dimethyl acetal (15,16,17,19,20,23,25,27,30,40, or 50 mmol for 1.5, 1.6, 1.7, 1.9, 2, 2.3, 2.5, 2.7, 3, 4, or 5 equivalents of FDA, respectively). An equimolar amount of iron(III) chloride (15,16,17,19,20,23,25,27,30,40, or 50 mmol) was added and the reaction mixture heated at 80°C for 18 hours. After cooling the solid product was removed by filtration and washed with methanol several times.…”

Section: Methodsmentioning

confidence: 99%

“…34 Similarly, modification of HCPs with imidazolium ionic liquids helped to increase polarity for enhanced adsorption of catechin from herbal plants. 35 The propensity of HCPs to swell has led their use in a number of applications including the trapping of organic vapors, 36 ion exchange, 37,38 removal of toxic trace metals, 39,40 solid phase extraction, 41 and recovery of organic compounds from water. 42,43 Knitting of the triptycene monomer can produce HCPs which show high adsorption for solvents including DMSO, toluene, and ethyl acetate, with a 30 times increase in the mass of the polymer observed for adsorption of chloroform.…”

Section: Introductionmentioning

confidence: 99%

Swellable functional hypercrosslinked polymer networks for the uptake of chemical warfare agents

et al. 2017

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The need for porous materials to function as sorbents in order to allow for bulk uptake (and potential deactivation) of chemical warfare agent (CWA) stockpiles is of significant importance in the world today.Hypercrosslinked polymers (HCPs) represent a class of such sorbents being produced using the facile and tuneable so-called "knitting" procedure. Several HCPs are reported and their properties including apparent Brunauer-Emmett-Teller surface areas (SA BET ) and swellability (Q) against CWA simulants are examined using two reliable swelling methods which we have developed. The HCP derived from fluorobenzene showed the greatest potential for using such materials for CWA uptake and was tested against real agents including isopropyl methylphosphonofluoridate (sarin, GB) and bis(2-chloroethyl)sulfane (sulfur mustard, HD) revealing uptakes close to 20 mL g −1.

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“…Sorption of metal ions strongly depends on the chemistry of the carbon surface. The shapes of the pH titration curves indicate the presence of polyfunctional weakly-acidic groups on the activated surface (Tai et al, 1999). A significant difference is observed between the curves of the adsorbents and K500.…”

Section: Resultsmentioning

confidence: 93%

Study of Cherry Stones as a Precursor in the Preparation of Low Cost Carbonaceous Adsorbent

Beker¹,

Dertli²,

Duranoglu-Gulbayir³

et al. 2010

Energy Sources, Part A: Recovery, Utilization, and Environmenta

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A cherry stone-based activated carbon was electrochemically and chemically oxidized to enhance its adsorbent property for comparison with as-produced. The samples obtained were characterized by Boehm's titration, pH titration, zeta potential measurement, FT-IR, Brunauer-Emmet-Teller surface area, and pore size distribution. A significant increase in the concentration of surface functional groups was obtained from the oxidation of the samples due to the introduction of oxygencontaining functional groups, as confirmed by Boehm's titration, FT-IR, PZC, and IEP analyses. Activation methods significantly improved the amount of oxygen-containing surface functional groups that make the carbonaceous adsorbents more hydrophilic and acidic, decreasing the pH of their point of zero charge, and increasing their surface charge density. The activated carbon samples obtained were predominantly microporous, and their pore volumes decreased as a function of activation period and temperature. The surface chemistry development of carbons was correlated to increasing removal ability of heavy metals.

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Characterisation and sorption performance of a Hypersol–Macronet polymer and an activated carbon

Cited by 37 publications

References 17 publications

Sorption kinetics of polycyclic aromatic hydrocarbons removal using granular activated carbon: Intraparticle diffusion coefficients

Sorption kinetics of polycyclic aromatic hydrocarbons removal using granular activated carbon: Intraparticle diffusion coefficients

Swellable functional hypercrosslinked polymer networks for the uptake of chemical warfare agents

Study of Cherry Stones as a Precursor in the Preparation of Low Cost Carbonaceous Adsorbent

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