Adsorption of isopropanol and cyclohexane on zinc oxide
Adsorption isotherms of isopropanol and cyclohexane are obtained in the range of 234–303 K on an initial surface of zinc oxide and after its treatment with glow-discharge plasma in O 2 and high-frequency plasma in Ar. The values of isosteric heat and adsorption entropy are shown to be only slightly...
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| Veröffentlicht in: | Russian Journal of Physical Chemistry A 2015-01, Vol.89 (1), p.108-113 |
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| container_title | Russian Journal of Physical Chemistry A |
| container_volume | 89 |
| creator | Bratchikova, I. G. Pylinina, A. I. Platonov, E. A. Danilova, M. N. Isaeva, N. Yu Yagodovskii, V. D. |
| description | Adsorption isotherms of isopropanol and cyclohexane are obtained in the range of 234–303 K on an initial surface of zinc oxide and after its treatment with glow-discharge plasma in O
2
and high-frequency plasma in Ar. The values of isosteric heat and adsorption entropy are shown to be only slightly affected by these treatments. It is found that the acidity of the surface increases by 38 and 97%, respectively, and the acidic sites are not adsorption sites for either adsorbate. At low degrees of occupation, the adsorption isotherms of (CH
3
)
2
CHOH are described by an equation of induced adsorption whose parameters are dependent on the plasma-chemical treatments. It is concluded that adsorbed isopropanol particles exist in positively and negatively charged forms. The adsorption of cyclohexane is described by the Hill-de Boer equation for the initial ZnO surface, and by the Langmuir equation after plasma-chemical treatments. |
| doi_str_mv | 10.1134/S0036024415010033 |
| format | Article |
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2
and high-frequency plasma in Ar. The values of isosteric heat and adsorption entropy are shown to be only slightly affected by these treatments. It is found that the acidity of the surface increases by 38 and 97%, respectively, and the acidic sites are not adsorption sites for either adsorbate. At low degrees of occupation, the adsorption isotherms of (CH
3
)
2
CHOH are described by an equation of induced adsorption whose parameters are dependent on the plasma-chemical treatments. It is concluded that adsorbed isopropanol particles exist in positively and negatively charged forms. The adsorption of cyclohexane is described by the Hill-de Boer equation for the initial ZnO surface, and by the Langmuir equation after plasma-chemical treatments.</description><identifier>ISSN: 0036-0244</identifier><identifier>EISSN: 1531-863X</identifier><identifier>DOI: 10.1134/S0036024415010033</identifier><language>eng</language><publisher>Moscow: Pleiades Publishing</publisher><subject>Chemistry ; Chemistry and Materials Science ; Physical Chemistry ; Physical Chemistry of Surface Phenomena</subject><ispartof>Russian Journal of Physical Chemistry A, 2015-01, Vol.89 (1), p.108-113</ispartof><rights>Pleiades Publishing, Ltd. 2015</rights><lds50>peer_reviewed</lds50><woscitedreferencessubscribed>false</woscitedreferencessubscribed><citedby>FETCH-LOGICAL-c288t-6a65cd88cc8ee935f3c47131239305e48ef630cd479d3918b95d4e041f9382273</citedby><cites>FETCH-LOGICAL-c288t-6a65cd88cc8ee935f3c47131239305e48ef630cd479d3918b95d4e041f9382273</cites></display><links><openurl>$$Topenurl_article</openurl><openurlfulltext>$$Topenurlfull_article</openurlfulltext><thumbnail>$$Tsyndetics_thumb_exl</thumbnail><linktopdf>$$Uhttps://link.springer.com/content/pdf/10.1134/S0036024415010033$$EPDF$$P50$$Gspringer$$H</linktopdf><linktohtml>$$Uhttps://link.springer.com/10.1134/S0036024415010033$$EHTML$$P50$$Gspringer$$H</linktohtml><link.rule.ids>314,780,784,27924,27925,41488,42557,51319</link.rule.ids></links><search><creatorcontrib>Bratchikova, I. G.</creatorcontrib><creatorcontrib>Pylinina, A. I.</creatorcontrib><creatorcontrib>Platonov, E. A.</creatorcontrib><creatorcontrib>Danilova, M. N.</creatorcontrib><creatorcontrib>Isaeva, N. Yu</creatorcontrib><creatorcontrib>Yagodovskii, V. D.</creatorcontrib><title>Adsorption of isopropanol and cyclohexane on zinc oxide</title><title>Russian Journal of Physical Chemistry A</title><addtitle>Russ. J. Phys. Chem</addtitle><description>Adsorption isotherms of isopropanol and cyclohexane are obtained in the range of 234–303 K on an initial surface of zinc oxide and after its treatment with glow-discharge plasma in O
2
and high-frequency plasma in Ar. The values of isosteric heat and adsorption entropy are shown to be only slightly affected by these treatments. It is found that the acidity of the surface increases by 38 and 97%, respectively, and the acidic sites are not adsorption sites for either adsorbate. At low degrees of occupation, the adsorption isotherms of (CH
3
)
2
CHOH are described by an equation of induced adsorption whose parameters are dependent on the plasma-chemical treatments. It is concluded that adsorbed isopropanol particles exist in positively and negatively charged forms. The adsorption of cyclohexane is described by the Hill-de Boer equation for the initial ZnO surface, and by the Langmuir equation after plasma-chemical treatments.</description><subject>Chemistry</subject><subject>Chemistry and Materials Science</subject><subject>Physical Chemistry</subject><subject>Physical Chemistry of Surface Phenomena</subject><issn>0036-0244</issn><issn>1531-863X</issn><fulltext>true</fulltext><rsrctype>article</rsrctype><creationdate>2015</creationdate><recordtype>article</recordtype><recordid>eNp9j01LxDAQhoMoWFd_gLf8gWomk7TJcVn8ggUPKngrMUm1S01KssKuv96U9SZ4moH3eYZ5CbkEdgWA4vqJMWwYFwIkg7LjEalAItSqwddjUs1xPeen5CznDWOioKIi7dLlmKbtEAONPR1ynFKcTIgjNcFRu7dj_PA7EzwtxPcQLI27wflzctKbMfuL37kgL7c3z6v7ev1497BarmvLldrWjWmkdUpZq7zXKHu0ogUEjhqZ9EL5vkFmnWi1Qw3qTUsnPBPQa1Sct7ggcLhrU8w5-b6b0vBp0r4D1s3Nuz_Ni8MPTi5sePep28SvFMqb_0g_LbZZRA</recordid><startdate>20150101</startdate><enddate>20150101</enddate><creator>Bratchikova, I. G.</creator><creator>Pylinina, A. I.</creator><creator>Platonov, E. A.</creator><creator>Danilova, M. N.</creator><creator>Isaeva, N. Yu</creator><creator>Yagodovskii, V. D.</creator><general>Pleiades Publishing</general><scope>AAYXX</scope><scope>CITATION</scope></search><sort><creationdate>20150101</creationdate><title>Adsorption of isopropanol and cyclohexane on zinc oxide</title><author>Bratchikova, I. G. ; Pylinina, A. I. ; Platonov, E. A. ; Danilova, M. N. ; Isaeva, N. Yu ; Yagodovskii, V. D.</author></sort><facets><frbrtype>5</frbrtype><frbrgroupid>cdi_FETCH-LOGICAL-c288t-6a65cd88cc8ee935f3c47131239305e48ef630cd479d3918b95d4e041f9382273</frbrgroupid><rsrctype>articles</rsrctype><prefilter>articles</prefilter><language>eng</language><creationdate>2015</creationdate><topic>Chemistry</topic><topic>Chemistry and Materials Science</topic><topic>Physical Chemistry</topic><topic>Physical Chemistry of Surface Phenomena</topic><toplevel>peer_reviewed</toplevel><toplevel>online_resources</toplevel><creatorcontrib>Bratchikova, I. G.</creatorcontrib><creatorcontrib>Pylinina, A. I.</creatorcontrib><creatorcontrib>Platonov, E. A.</creatorcontrib><creatorcontrib>Danilova, M. N.</creatorcontrib><creatorcontrib>Isaeva, N. Yu</creatorcontrib><creatorcontrib>Yagodovskii, V. D.</creatorcontrib><collection>CrossRef</collection><jtitle>Russian Journal of Physical Chemistry A</jtitle></facets><delivery><delcategory>Remote Search Resource</delcategory><fulltext>fulltext</fulltext></delivery><addata><au>Bratchikova, I. G.</au><au>Pylinina, A. I.</au><au>Platonov, E. A.</au><au>Danilova, M. N.</au><au>Isaeva, N. Yu</au><au>Yagodovskii, V. D.</au><format>journal</format><genre>article</genre><ristype>JOUR</ristype><atitle>Adsorption of isopropanol and cyclohexane on zinc oxide</atitle><jtitle>Russian Journal of Physical Chemistry A</jtitle><stitle>Russ. J. Phys. Chem</stitle><date>2015-01-01</date><risdate>2015</risdate><volume>89</volume><issue>1</issue><spage>108</spage><epage>113</epage><pages>108-113</pages><issn>0036-0244</issn><eissn>1531-863X</eissn><abstract>Adsorption isotherms of isopropanol and cyclohexane are obtained in the range of 234–303 K on an initial surface of zinc oxide and after its treatment with glow-discharge plasma in O
2
and high-frequency plasma in Ar. The values of isosteric heat and adsorption entropy are shown to be only slightly affected by these treatments. It is found that the acidity of the surface increases by 38 and 97%, respectively, and the acidic sites are not adsorption sites for either adsorbate. At low degrees of occupation, the adsorption isotherms of (CH
3
)
2
CHOH are described by an equation of induced adsorption whose parameters are dependent on the plasma-chemical treatments. It is concluded that adsorbed isopropanol particles exist in positively and negatively charged forms. The adsorption of cyclohexane is described by the Hill-de Boer equation for the initial ZnO surface, and by the Langmuir equation after plasma-chemical treatments.</abstract><cop>Moscow</cop><pub>Pleiades Publishing</pub><doi>10.1134/S0036024415010033</doi><tpages>6</tpages></addata></record> |
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| subjects | Chemistry Chemistry and Materials Science Physical Chemistry Physical Chemistry of Surface Phenomena |
| title | Adsorption of isopropanol and cyclohexane on zinc oxide |
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