Conţinutul numărului revistei |
Articolul precedent |
Articolul urmator |
940 8 |
Ultima descărcare din IBN: 2023-04-08 20:09 |
SM ISO690:2012 RUSU, Vasile, NASTAS, Raisa, ŢÎMBALIUC, Nina, GONŢA, Alexandru, MAFTULEAC, Alexei. Proprietăţile sorbţionale şi catalitice ale montmorilonitului intercalat cu oligomeri de aluminiu. In: Studia Universitatis Moldaviae (Seria Ştiinţe Reale şi ale Naturii), 2014, nr. 1(71), pp. 166-174. ISSN 1814-3237. |
EXPORT metadate: Google Scholar Crossref CERIF DataCite Dublin Core |
Studia Universitatis Moldaviae (Seria Ştiinţe Reale şi ale Naturii) | ||||||
Numărul 1(71) / 2014 / ISSN 1814-3237 /ISSNe 1857-498X | ||||||
|
||||||
Pag. 166-174 | ||||||
|
||||||
Descarcă PDF | ||||||
Rezumat | ||||||
Efectul chemi-luminescenţei luminolului prezintă un procedeu eficace de estimare comparativă a activităţii catalitice a catalizatorilor. S-a constatat că cel mai pronunţat efect catalitic, având o intensitate a chemi-luminescenţei de 18 ori mai mare faţă de martor, posedă H-forma Al-montmorilonitului intercalat cu oligomeri de aluminiu la raportul molar iniţial OH-/Al3 2:1, după intercalare calcinat la 450oC. Această mostră posedă de asemenea o eficienţă mai bună (94%) de oxidare a metiloranjului în prezenţa H2O2 şi aciditate de tipul Brönsted mai pronunţată. |
||||||
Cuvinte-cheie montmorilonit, adsorbanţi intercalaţi, metiloranj, chemi-luminescenţă. |
||||||
|
Cerif XML Export
<?xml version='1.0' encoding='utf-8'?> <CERIF xmlns='urn:xmlns:org:eurocris:cerif-1.5-1' xsi:schemaLocation='urn:xmlns:org:eurocris:cerif-1.5-1 http://www.eurocris.org/Uploads/Web%20pages/CERIF-1.5/CERIF_1.5_1.xsd' xmlns:xsi='http://www.w3.org/2001/XMLSchema-instance' release='1.5' date='2012-10-07' sourceDatabase='Output Profile'> <cfResPubl> <cfResPublId>ibn-ResPubl-38791</cfResPublId> <cfResPublDate>2014-07-01</cfResPublDate> <cfVol>71</cfVol> <cfIssue>1</cfIssue> <cfStartPage>166</cfStartPage> <cfISSN>1814-3237</cfISSN> <cfURI>https://ibn.idsi.md/ro/vizualizare_articol/38791</cfURI> <cfTitle cfLangCode='RO' cfTrans='o'>Proprietăţile sorbţionale şi catalitice ale montmorilonitului intercalat cu oligomeri de aluminiu</cfTitle> <cfKeyw cfLangCode='RO' cfTrans='o'>montmorilonit; adsorbanţi intercalaţi; metiloranj; chemi-luminescenţă.</cfKeyw> <cfAbstr cfLangCode='RO' cfTrans='o'>Efectul chemi-luminescenţei luminolului prezintă un procedeu eficace de estimare comparativă a activităţii catalitice a catalizatorilor. S-a constatat că cel mai pronunţat efect catalitic, având o intensitate a chemi-luminescenţei de 18 ori mai mare faţă de martor, posedă H-forma Al-montmorilonitului intercalat cu oligomeri de aluminiu la raportul molar iniţial OH-/Al3 2:1, după intercalare calcinat la 450oC. Această mostră posedă de asemenea o eficienţă mai bună (94%) de oxidare a metiloranjului în prezenţa H2O2 şi aciditate de tipul Brönsted mai pronunţată.</cfAbstr> <cfAbstr cfLangCode='EN' cfTrans='o'>The luminol chemiluminescence effect presents an effective procedure for comparative assessment of the catalytic activity of the catalysts. It was found that the most pronounced catalytic effect, having a chemiluminescence intensity about 18 times higher compared to the control sample, possess Al-pillared montmorillonite, obtained at initial molar ratio OH-/Al3 2:1, afterwards calcined at 450oC and transformed into H-form. This sample also possess better efficiency (94%) of oxidation of the methyl-orange in the presence of H2O2 and more enhanced Brönsted acidity.</cfAbstr> <cfResPubl_Class> <cfClassId>eda2d9e9-34c5-11e1-b86c-0800200c9a66</cfClassId> <cfClassSchemeId>759af938-34ae-11e1-b86c-0800200c9a66</cfClassSchemeId> <cfStartDate>2014-07-01T24:00:00</cfStartDate> </cfResPubl_Class> <cfResPubl_Class> <cfClassId>e601872f-4b7e-4d88-929f-7df027b226c9</cfClassId> <cfClassSchemeId>40e90e2f-446d-460a-98e5-5dce57550c48</cfClassSchemeId> <cfStartDate>2014-07-01T24:00:00</cfStartDate> </cfResPubl_Class> <cfPers_ResPubl> <cfPersId>ibn-person-12209</cfPersId> <cfClassId>49815870-1cfe-11e1-8bc2-0800200c9a66</cfClassId> <cfClassSchemeId>b7135ad0-1d00-11e1-8bc2-0800200c9a66</cfClassSchemeId> <cfStartDate>2014-07-01T24:00:00</cfStartDate> </cfPers_ResPubl> <cfPers_ResPubl> <cfPersId>ibn-person-12153</cfPersId> <cfClassId>49815870-1cfe-11e1-8bc2-0800200c9a66</cfClassId> <cfClassSchemeId>b7135ad0-1d00-11e1-8bc2-0800200c9a66</cfClassSchemeId> <cfStartDate>2014-07-01T24:00:00</cfStartDate> </cfPers_ResPubl> <cfPers_ResPubl> <cfPersId>ibn-person-12499</cfPersId> <cfClassId>49815870-1cfe-11e1-8bc2-0800200c9a66</cfClassId> <cfClassSchemeId>b7135ad0-1d00-11e1-8bc2-0800200c9a66</cfClassSchemeId> <cfStartDate>2014-07-01T24:00:00</cfStartDate> </cfPers_ResPubl> <cfPers_ResPubl> <cfPersId>ibn-person-27170</cfPersId> <cfClassId>49815870-1cfe-11e1-8bc2-0800200c9a66</cfClassId> <cfClassSchemeId>b7135ad0-1d00-11e1-8bc2-0800200c9a66</cfClassSchemeId> <cfStartDate>2014-07-01T24:00:00</cfStartDate> </cfPers_ResPubl> <cfPers_ResPubl> <cfPersId>ibn-person-12142</cfPersId> <cfClassId>49815870-1cfe-11e1-8bc2-0800200c9a66</cfClassId> <cfClassSchemeId>b7135ad0-1d00-11e1-8bc2-0800200c9a66</cfClassSchemeId> <cfStartDate>2014-07-01T24:00:00</cfStartDate> </cfPers_ResPubl> </cfResPubl> <cfPers> <cfPersId>ibn-Pers-12209</cfPersId> <cfPersName_Pers> <cfPersNameId>ibn-PersName-12209-2</cfPersNameId> <cfClassId>55f90543-d631-42eb-8d47-d8d9266cbb26</cfClassId> <cfClassSchemeId>7375609d-cfa6-45ce-a803-75de69abe21f</cfClassSchemeId> <cfStartDate>2014-07-01T24:00:00</cfStartDate> <cfFamilyNames>Rusu</cfFamilyNames> <cfFirstNames>Vasile</cfFirstNames> </cfPersName_Pers> </cfPers> <cfPers> <cfPersId>ibn-Pers-12153</cfPersId> <cfPersName_Pers> <cfPersNameId>ibn-PersName-12153-2</cfPersNameId> <cfClassId>55f90543-d631-42eb-8d47-d8d9266cbb26</cfClassId> <cfClassSchemeId>7375609d-cfa6-45ce-a803-75de69abe21f</cfClassSchemeId> <cfStartDate>2014-07-01T24:00:00</cfStartDate> <cfFamilyNames>Nastas</cfFamilyNames> <cfFirstNames>Raisa</cfFirstNames> </cfPersName_Pers> </cfPers> <cfPers> <cfPersId>ibn-Pers-12499</cfPersId> <cfPersName_Pers> <cfPersNameId>ibn-PersName-12499-2</cfPersNameId> <cfClassId>55f90543-d631-42eb-8d47-d8d9266cbb26</cfClassId> <cfClassSchemeId>7375609d-cfa6-45ce-a803-75de69abe21f</cfClassSchemeId> <cfStartDate>2014-07-01T24:00:00</cfStartDate> <cfFamilyNames>Timbaliuc</cfFamilyNames> <cfFirstNames>Nina</cfFirstNames> <cfFamilyNames>Цымбалюк</cfFamilyNames> <cfFirstNames>Нина</cfFirstNames> </cfPersName_Pers> </cfPers> <cfPers> <cfPersId>ibn-Pers-27170</cfPersId> <cfPersName_Pers> <cfPersNameId>ibn-PersName-27170-2</cfPersNameId> <cfClassId>55f90543-d631-42eb-8d47-d8d9266cbb26</cfClassId> <cfClassSchemeId>7375609d-cfa6-45ce-a803-75de69abe21f</cfClassSchemeId> <cfStartDate>2014-07-01T24:00:00</cfStartDate> <cfFamilyNames>Gonta</cfFamilyNames> <cfFirstNames>Alexandru</cfFirstNames> </cfPersName_Pers> </cfPers> <cfPers> <cfPersId>ibn-Pers-12142</cfPersId> <cfPersName_Pers> <cfPersNameId>ibn-PersName-12142-2</cfPersNameId> <cfClassId>55f90543-d631-42eb-8d47-d8d9266cbb26</cfClassId> <cfClassSchemeId>7375609d-cfa6-45ce-a803-75de69abe21f</cfClassSchemeId> <cfStartDate>2014-07-01T24:00:00</cfStartDate> <cfFamilyNames>Мафтуляк</cfFamilyNames> <cfFirstNames>Алексей</cfFirstNames> </cfPersName_Pers> </cfPers> </CERIF>