The Adsorption of Dioxan by Porous Carbons

Rochester, Colin H.; Strachan, Alistair

doi:10.1006/jcis.1995.1352

Cited by 4 publications

(4 citation statements)

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“…Pressures were recorded with Schaevitz types P702-By reference to corresponding data for a nonporous carbon 0001 and P522-0001 transducers, connected together with used as a standard material, adsorption isotherms for dioxan the control unit and a thermocouple to a LINSEIS analog on porous carbons have given information about surface printer which allowed easy recognition of the point at which areas, micropore volumes, and mesopore surface areas which equilibrium was attained for a given adsorption point. are consistent with results derived from adsorption isotherms Transmission infrared spectra of self-supporting silica for nitrogen at 77 K (1). The adsorption of dioxan on porous discs exposed to dioxan vapor at 293 K were recorded with solids is further tested here by comparison of nitrogen and a Perkin-Elmer 683 spectrometer using a Pyrex cell fitted dioxan adsorption data for nonporous, mesoporous, and miwith fluorite windows.…”

Section: Introductionsupporting

confidence: 81%

The Adsorption of Dioxan by Porous Silicas

Rochester

Strachan

1996

Journal of Colloid and Interface Science

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Section: Introductionsupporting

confidence: 81%

The Adsorption of Dioxan by Porous Silicas

Rochester

Strachan

1996

Journal of Colloid and Interface Science

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“…It has been proven that adsorption by substituting benzene depends on the electron influence of the substitute. However, during dioxin adsorption on non-porous and micro-porous silica is the result of the volume and size of the measurements (30,31). The obtained silica was analyzed using the IR technique.…”

Section: Silicamentioning

confidence: 99%

Characteristics, Chemical Modification Processes as well as the Application of Silica and its Modified Forms

Kupiec

Konieczka

Namieśnik

2009

Critical Reviews in Analytical Chemistry

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The variety of chemical modifications of the surface of silica and its modified forms cause these materials to find a consistently wider scope of application. In the publication, the characteristics of silica, silica gel, aerogel and xerogel are presented. The obtainment, application and properties of these materials are discussed. Methods of chemical modifications of surface structures with the use of different chemical compounds are presented. Special attention is turned to the behavior of silica and its modified form during the adsorption process. The main applications of silica and its different forms in analytical chemistry are also discussed.

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“…Après refroidissement, le charbon obtenu a été lavé à l'acide chlorhydrique à 5 % puis à l'eau distillée et enfin séché. [6] ; l'échantillon COM1 nous a été fourni par l'hôpital de la CNPS de Yaoundé.…”

Section: Préparation Des Charbonsunclassified

Adsorption de l’iode par des charbons actifs de rafles de régimes de palmes

Avom¹,

Ketcha²,

Djam³

et al. 2002

Environnement, Ingénierie &Amp; Développement

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Les propriétés adsorbantes des charbons actifs de rafles de régimes de palmes de la région de Yaoundé (Cameroun) ont été déterminées à partir des isothermes d'adsorption de l'iode en solution aqueuse iodo-iodurée par application de la théorie de Langmuir et de la théorie de Freundlich. Il est apparu que l'adsorption de l'iode n'est pas limitée à l'établissement d'une monocouche à la surface de l'adsorbant et qu'il y a remplissage des pores de transition. D'autre part, pour une meilleure exploitation de l'isotherme d'adsorption, on doit tenir compte de la concentration de l'iode libre en solution et non de la concentration totale de l'iode à l'équilibre. Nous avons pu ainsi déterminer les facteurs qui influencent la préparation de ces charbons et en particulier ceux qui conduisent à l'élargissement des pores, conditions étroitement liées au mode d'activation.The iodine-iodide-water system has been used to study adsorption by activated carbons obtained from local Cameroonian palm-tree cobs. The adsorbent is characterized in terms of micropore volume and effective surface area as provided by the Langmuir theory and Freundlich theory of adsorption. It was found that iodine adsorption is not restricted to monolayer coverage and that filling of transitional porosity occurred. The correct isotherm must employ free iodine concentration and not total iodine concentration. Thus, we have been able to establish factors that influence the preparation of the activated carbons and in particular the enlargement of their pores -conditions tied to their method of activation.* Laboratoire de chimie physique (Cameroun) ** Laboratoire d'analyse environnementale des procédés et des systèmes industriels, Villeurbanne

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The Adsorption of Dioxan by Porous Carbons

Cited by 4 publications

References 0 publications

The Adsorption of Dioxan by Porous Silicas

The Adsorption of Dioxan by Porous Silicas

Characteristics, Chemical Modification Processes as well as the Application of Silica and its Modified Forms

Adsorption de l’iode par des charbons actifs de rafles de régimes de palmes

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