This review examines state-of-the-art techniques to control the porosity of both activated carbons and zeolite templated in order fine-tune their ability towards capture storage various gases under different pressure temperature applications.

Enterosorbents (oral sorbents) on a basis of spherically granulated synthetic (d = 0.3-0.6 mm) and fruit stones (irregular granules d = 0.3-2 mm) carbons, and also the activated carbon fibers represent high purity and high porous materials with controllable surface chemistry. In some cases in a superficial layer of such carbons there are set amounts and types of heteroatoms nitrogen and oxygen,...

Granular activated carbons (GACS) were developed from hard and soft lignocellulosic byproducts. Three activation strategies were evaluated which employed phosphoric acid, carbon dioxide or steam. A portion of these carbons were also subjected to air oxidation after activation. Uptake of both non-polar and polar, small organic compounds were followed as was the adsorption of copper. Our results ...

Activated carbons are widely used as adsorbents, 11 [1-4].Activated carbons are widely used as adsorbents, 12 *Corresponding Authors: Angela Martins, Departamento de Engenharia Química and 13 CIEQB, Instituto Superior de Engenharia de Lisboa, R. Conselheiro Emídio Navarro, 14 1959-007 Lisboa, Portugal; Tel: +351 218317000; Fax: +351 218317001; E-mail 15 address: [email protected]; Ana P....

Recycling trend has transformed the prerequisites of our cravings. Makeover waste material into useful goods become inevitable. Bio shares a major portion materials, hence pursued for recycling. Activated carbon from bio been reported remarkable in electrochemical performance (capacitance, charge density, charge-discharge ratio etc.). This survey data compiled different wastes as source activat...

The porosity of activated carbons may be modulated via pre-mixed precursors containing polypyrrole and air-carbonised biomass to ultra-high surface area high packing density suitable for enhanced all-round methane storage.

An activated carbon, Carbochem(TM)-PS230, was modified by chemical and thermal treatment in flow of H(2), in order to evaluate the influence of the activated carbon chemical characteristics in the adsorption of the catechol. The catechol adsorption in aqueous solution was studied along with the effect of the pH solution in the adsorption process of modified activated carbons and the variation o...

Introduction The development of alternative and renewable energies is one of the crucial opportunities exhibited by governments to remediate the diminishing resources of the fossil feedstock. Biogases collected from landfill, digester and wastewater plants constitute a large and disposable supply to produce a rich methane stream, though these resources remain mostly unused. The biogas should be...

Petroleum and coal tar pitches have been treated thermally at 4008C and 4708C, extracted with toluene and subsequently activated with CO at 9008C. With one exception, the development of the micropore widths and volumes in the resulting 2 carbons follows the trend observed for carbons based essentially on precursors of vegetable origin. On the other hand, petroleum pitch treated at 4008C leads t...

Activated carbons with micropores for adsorption and filtration of the volatile constituents of mainstream cigarette smoke, together with mesopores for enhanced mass transport were prepared by a novel route. Treatment of coconut shell or other lignocellulosic precursors with aqueous NaOH, followed by thorough washing, charring and steam activation produced carbons with enhanced adsorption chara...