| The adsorption of benzene and methylethylketone onto activated carbon: thermodynamic aspects. | |
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MedLine Citation:
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PMID: 11806527 Owner: NLM Status: MEDLINE |
Abstract/OtherAbstract:
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The adsorption of volatile organic compounds (VOCs), exemplified by benzene and methylethylketone (MEK), onto seven different types of activated carbon was investigated. Results show that for benzene adsorption the adsorption characteristic energy, enthalpy, free energy and entropy are in the range 17.12-36.86, -20.8 to -44.7, -11.89 to -16.22 kJ/mole and -29.4 to -85.3 J/mole/K, respectively. For the adsorption of MEK, the adsorption characteristic energy, enthalpy, free energy and entropy are in the range 14.47-32.34, -18.3 to -40.8, -10.78 to -15.56 kJ/mole and -24.8 to approximately -60.3 J/mole/K, respectively. The adsorption enthalpy can be calculated indirectly from statistical thermodynamic method and directly from the immersion enthalpy method. The adsorption characteristic energy is calculated by the Dubinin-Astokhov equation. The free energy is calculated by the measured equilibrium adsorption constant. |
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Authors:
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H L Chiang; C P Huang; P C Chiang |
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Publication Detail:
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Type: Comparative Study; Journal Article |
Journal Detail:
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Title: Chemosphere Volume: 46 ISSN: 0045-6535 ISO Abbreviation: Chemosphere Publication Date: 2002 Jan |
Date Detail:
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Created Date: 2002-01-24 Completed Date: 2002-05-10 Revised Date: 2007-11-15 |
Medline Journal Info:
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Nlm Unique ID: 0320657 Medline TA: Chemosphere Country: England |
Other Details:
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Languages: eng Pagination: 143-52 Citation Subset: IM |
Affiliation:
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Department of Environmental Engineering, Fooyin Institute of Technology, Kaoshsiung Hsien, Taiwan, ROC. |
Export Citation:
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APA/MLA Format Download EndNote Download BibTex |
| MeSH Terms | |
Descriptor/Qualifier:
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Adsorption
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drug effects Algorithms Benzene / chemistry, isolation & purification, metabolism* Butanones / chemistry, isolation & purification, metabolism* Charcoal / pharmacology* Statistics as Topic Thermodynamics Volatilization |
| Chemical | |
Reg. No./Substance:
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0/Butanones; 16291-96-6/Charcoal; 71-43-2/Benzene; 78-93-3/methylethyl ketone |
From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine
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