The Li+, Na+ and K+ ion exchange reaction process on the surface of mixed oxide SiO2/TiO2/Sb2O5 surface prepared by the Sol-Gel processing method
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| Natura: | Artículo científico |
| Lingua: | en |
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Universidade Estadual Paulista Júlio de Mesquita Filho
2005
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| _version_ | 1876435016889663488 |
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| author | C. U. Ferreira |
| author_facet | C. U. Ferreira |
| contents | The Li+, Na+ and K+ ion exchange reaction process on the surface of mixed oxide SiO2/TiO2/Sb2O5 surface prepared by the Sol-Gel processing method C. U. Ferreira Y. V. Kholin J. E. Gonçalves Y. Gushikem Química silica titania ion exchange alkaline metal ions stability constants The porous mixed oxide SiO2/TiO2/Sb2O5 obtained by the sol-gel processing method presenteda good ion exchange property and a high exchange capacity towards the Li+, Na+ and K+ ions. In the H+/M+ ion exchange process, the H+ / Na+ could be described as presenting an ideal character. The ionexchange equilibria of Li+ and K+ were quantitatively described with the help of the model of fixedtetradentate centers. The results of simulation evidence that for the H+ / Li+ exchange the usual situationtakes place: the affinity of the material to the Li+ ions is decreased with increasing the degree of ionexchange. On the contrary, for K+ the effects of positive cooperativity, that facilitate the H+ / K+ exchange,were revealed. 2005 artículo científico 0100-4670 https://www.redalyc.org/articulo.oa?id=42930107 en http://www.redalyc.org/revista.oa?id=429 Eclética Química application/pdf Universidade Estadual Paulista Júlio de Mesquita Filho Eclética Química (Brasil) Num.1 Vol.30 |
| format | Artículo científico |
| id | redalyc_42930107 |
| institution | Redalyc |
| language | en |
| publishDate | 2005 |
| publisher | Universidade Estadual Paulista Júlio de Mesquita Filho |
| spellingShingle | The Li+, Na+ and K+ ion exchange reaction process on the surface of mixed oxide SiO2/TiO2/Sb2O5 surface prepared by the Sol-Gel processing method C. U. Ferreira Química silica titania ion exchange alkaline metal ions stability constants The Li+, Na+ and K+ ion exchange reaction process on the surface of mixed oxide SiO2/TiO2/Sb2O5 surface prepared by the Sol-Gel processing method C. U. Ferreira Y. V. Kholin J. E. Gonçalves Y. Gushikem Química silica titania ion exchange alkaline metal ions stability constants The porous mixed oxide SiO2/TiO2/Sb2O5 obtained by the sol-gel processing method presenteda good ion exchange property and a high exchange capacity towards the Li+, Na+ and K+ ions. In the H+/M+ ion exchange process, the H+ / Na+ could be described as presenting an ideal character. The ionexchange equilibria of Li+ and K+ were quantitatively described with the help of the model of fixedtetradentate centers. The results of simulation evidence that for the H+ / Li+ exchange the usual situationtakes place: the affinity of the material to the Li+ ions is decreased with increasing the degree of ionexchange. On the contrary, for K+ the effects of positive cooperativity, that facilitate the H+ / K+ exchange,were revealed. 2005 artículo científico 0100-4670 https://www.redalyc.org/articulo.oa?id=42930107 en http://www.redalyc.org/revista.oa?id=429 Eclética Química application/pdf Universidade Estadual Paulista Júlio de Mesquita Filho Eclética Química (Brasil) Num.1 Vol.30 |
| title | The Li+, Na+ and K+ ion exchange reaction process on the surface of mixed oxide SiO2/TiO2/Sb2O5 surface prepared by the Sol-Gel processing method |
| topic | Química silica titania ion exchange alkaline metal ions stability constants |
| url | https://www.redalyc.org/articulo.oa?id=42930107 |