ADSORPTION HEATS OF PHENOL ON ACTIVATED CARBON USING ADAPTED METHOD OF IMMERSION CALORIMETRY

Result code in IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F61988987%3A17310%2F12%3AA12013WF" target="_blank" >RIV/61988987:17310/12:A12013WF - isvavai.cz</a>

Result on the web

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DOI - Digital Object Identifier

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Result language

čeština

Original language name

ADSORPTION HEATS OF PHENOL ON ACTIVATED CARBON USING ADAPTED METHOD OF IMMERSION CALORIMETRY

Original language description

Simple adaptation of the technique of immersion calorimetry enables determining both integral and differential adsorption heats as well as the course of the adsorption isotherm of phenol on activated carbon. The innovative aspect of the applied procedureconsists in bringing the phenol aqueous solution to contact with the suspension of carbon with water. Thus, the ?interfering? heat effect of carbon interaction with water is eliminated and only the net adsorption heat of phenol is monitored. -52.5 kJ mol-1 was ascertained as the molar differential adsorption heat at the low surface coverage (cca 0.2 mmol g-1) of the sample of microporous carbon. As the adsorption process continues, for adsorption uptakes exceeding the value of about 1 mmol g-1, molar differential adsorption heats appear to be established at a level of about -20 + 5 kJ mol-1.

Czech name

ADSORPTION HEATS OF PHENOL ON ACTIVATED CARBON USING ADAPTED METHOD OF IMMERSION CALORIMETRY

Czech description

Simple adaptation of the technique of immersion calorimetry enables determining both integral and differential adsorption heats as well as the course of the adsorption isotherm of phenol on activated carbon. The innovative aspect of the applied procedureconsists in bringing the phenol aqueous solution to contact with the suspension of carbon with water. Thus, the ?interfering? heat effect of carbon interaction with water is eliminated and only the net adsorption heat of phenol is monitored. -52.5 kJ mol-1 was ascertained as the molar differential adsorption heat at the low surface coverage (cca 0.2 mmol g-1) of the sample of microporous carbon. As the adsorption process continues, for adsorption uptakes exceeding the value of about 1 mmol g-1, molar differential adsorption heats appear to be established at a level of about -20 + 5 kJ mol-1.

Type

J_x - Unclassified - Peer-reviewed scientific article (Jimp, Jsc and Jost)

CEP classification

CF - Physical chemistry and theoretical chemistry

OECD FORD branch

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Project

Result was created during the realization of more than one project. More information in the Projects tab.

Continuities

P - Projekt vyzkumu a vyvoje financovany z verejnych zdroju (s odkazem do CEP)

Publication year

2012

Confidentiality

S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

Name of the periodical

J THERM ANAL CALORIM

ISSN

1388-6150

e-ISSN

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Volume of the periodical

107

Issue of the periodical within the volume

3

Country of publishing house

HU - HUNGARY

Number of pages

4

Pages from-to

923-926

UT code for WoS article

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EID of the result in the Scopus database

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