dc.creator | ESPINOLA, JGP | |
dc.creator | DEFREITAS, JMP | |
dc.creator | DEOLIVEIRA, SF | |
dc.creator | AIROLDI, C | |
dc.date | 1992 | |
dc.date | 43040 | |
dc.date | 2014-12-16T11:34:53Z | |
dc.date | 2015-11-26T18:03:13Z | |
dc.date | 2014-12-16T11:34:53Z | |
dc.date | 2015-11-26T18:03:13Z | |
dc.date.accessioned | 2018-03-29T00:45:03Z | |
dc.date.available | 2018-03-29T00:45:03Z | |
dc.identifier | Colloids And Surfaces. Elsevier Science Bv, v. 68, n. 4, n. 261, n. 266, 1992. | |
dc.identifier | 0166-6622 | |
dc.identifier | WOS:A1992KB79500004 | |
dc.identifier | 10.1016/0166-6622(92)80211-J | |
dc.identifier | http://www.repositorio.unicamp.br/jspui/handle/REPOSIP/63057 | |
dc.identifier | http://www.repositorio.unicamp.br/handle/REPOSIP/63057 | |
dc.identifier | http://repositorio.unicamp.br/jspui/handle/REPOSIP/63057 | |
dc.identifier.uri | http://repositorioslatinoamericanos.uchile.cl/handle/2250/1292467 | |
dc.description | The reaction of 3-propylethylenediamine groups covalently bonded to silica gel with pentane-2,4-dione in benzene resulted in a modified surface having 11.4 . 10(-4) mol g-1 of ligand sites which adsorb the divalent cations Co2+, Ni2+, Cu2+ and Zn2+ from ethanol solution with maximum adsorptions of 5.0 . 10(-4) mol g-1, 2.0 . 10(-4) mol g-1, 5.0 . 10(-4) mol g-1 and 5.9 . 10(-4) mol g-1, respectively. The adsorption isotherms are very similar in shape for all the cations and conform to the Langmuir model. The complexes formed on the surface have a molar composition of one cation to two anchored groups of Schiff bases and the geometries of the complexes are similar to those obtained in solution. | |
dc.description | 68 | |
dc.description | 4 | |
dc.description | 261 | |
dc.description | 266 | |
dc.language | en | |
dc.publisher | Elsevier Science Bv | |
dc.publisher | Amsterdam | |
dc.publisher | Holanda | |
dc.relation | Colloids And Surfaces | |
dc.rights | fechado | |
dc.rights | http://www.elsevier.com/about/open-access/open-access-policies/article-posting-policy | |
dc.source | Web of Science | |
dc.subject | CHEMISORPTION | |
dc.subject | IMMOBILIZATION | |
dc.subject | 3-PROPYLETHYLENEDIAMINE SILICA GEL | |
dc.subject | SCHIFF BASE | |
dc.subject | SILICA GEL | |
dc.subject | Metal-ions | |
dc.subject | Adsorption | |
dc.subject | Complexes | |
dc.subject | Chlorides | |
dc.title | CHEMISORPTION OF SOME DIVALENT-CATIONS ON SILICA MODIFIED THROUGH THE REACTION OF PENTANE-2,4-DIONE WITH 3-PROPYLETHYLENEDIAMINE SILICA-GEL | |
dc.type | Artículos de revistas | |