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Bagreev, Andrey; Broshnik, A. P.; Стрелко, В. В.; Tarasenko, Yu. А.

doi:10.1023/a:1012757730582

Cited by 4 publications

(1 citation statement)

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“…The selection of the crude material for the manufacturing of activated carbon is decided by the ultimate designation of the activated carbon as well as the availability and cost of the raw material [4]. Activated carbon can be produced such as agricultural wastes, inclusive a corn crust [5,6], peanut crust [7], cotton handle [8], coal, wood, coconut shell, peat [9], almond crust [10], date palm [11], rice shell [11], hazel nut [12], walnut shells [13]. There are two significant process to manufacturing activated carbon [14]: (a) Carbonization which is pyrolysis of the pioneers in an inert atmosphere.…”

Section: Introductionmentioning

confidence: 99%

Preparation and Characterization of Activated Carbon Produced from Eriobotrya japonica Seed by Chemical Activation with ZnCl2

Kiliçel¹,

Karapınar²

2018

Asian J. Chem.

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This study reports the utilization of Eriobotrya japonica seed in activated carbon arranging by chemical activation with ZnCl2 agent and the effect of carbonization situations surface properties. The influences of diverse activation temperatures (500, 600, 700 °C) on the pore structure properties of activated carbons were discussed by using N2 adsorption/desorption isotherms, scanning electron microscopy, thermogravimetric analysis, Fourier transform infrared spectroscopy and X-ray diffraction. The conclusions indicated that the carbonization temperature have favourable effect on Brunauer-Emmett-Teller (BET) surface field, aggregate pore volume. The highest Brunauer-Emmett-Teller surface area of activated carbon produced at 700 °C was 1079 m 2 /g, total pore volume was 0.52 cm 3 /g, carbonization time was 2 h and impregnation rate was 1/1. Eriobotrya japonica activated carbon (EJAC)-ZnCl2 can be considered as an ideal low-expense and ecofriendly adsorbent.

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Section: Introductionmentioning

confidence: 99%

Preparation and Characterization of Activated Carbon Produced from Eriobotrya japonica Seed by Chemical Activation with ZnCl2

Kiliçel¹,

Karapınar²

2018

Asian J. Chem.

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Carbons

Schlögl

2008

Handbook of Heterogeneous Catalysis

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The element carbon plays a multiple role in heterogeneous catalysis. In homogeneous catalysis it occurs of course as the most prominent constituent of ligand systems and will be treated as such there. Carbon-containing molecules are, in most catalytic applications, the substrates of the process under consideration. Deposits and polymers of carbon often occur as poisons on catalysts. Carbon deposition is the most severe problem in certain zeolite applications. In hydrogenation reactions carbon deposits are thought to act as modifiers for the activity of the catalyst and to provide selectivity by controlling the hydrogenationdehydrogenation activity of the metal part of the catalyst. Carbon deposits are even thought to constitute part of the active sites in some cases. Carbon is a prominent catalyst support material as it allows the anchoring of metal particles on a substrate which does not exhibit solid acid-base properties. Carbon is finally a catalyst in its own right allowing the activation of oxygen and chlorine for selective oxidation, chlorination and de-chlorination reactions. These multiple roles of the element carbon are in parallel with a complex structural chemistry giving rise to families of chemically vastly different modifications of the element. It is a special characteristic of carbon chemistry that many of these modifications cannot be obtained as phase-pure materials. This limits the exact knowledge of physical and chemical properties to a few archetype modifications, namely graphite and diamond. The reason for this poor definition of materials is found in the process of its formation. This is comprised of difficult to control polymerisation reactions. Such reactions will occur also in catalytic reactions with small organic molecules. The nature of carbon deposits will therefore reflect all the complexity of the bulk carbon materials. It is one aim of this article to describe the structural and chemical complexity of "carbon" or "soot" in order to provide an understanding of the frequently observed complexity of the chemical reactivity (e.g. in re-activation processes aiming at an oxidative removal of deposits). The surface chemistry of carbon which determines its interfacial properties is a rich field as a wide variety of surface functional groups are known to exist on carbon. The by far most important family of surface functional groups are those involving oxygen. Other prominent heteroatoms on the surface are hydrogen and nitrogen. This article focusses on the description and characterisation of oxygen surface functional groups. In the final section, selected case studies of carbon chemistry in catalysis will be discussed in order to illustrate characteristic properties of carbon materials as wanted or unwanted components in catalytic systems. Regarding the literature on basic properties of carbon materials, the reader is referred to the extensive collection of review papers published in the series Chemistry and Physics of Carbon. Editors P.L.

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