Spectroscopic investigation of iron ions in a novel ferrisilicate pentasil zeolite

Spectroscopic investigation of iron ions in a novel ferrisilicate pentasil zeolite Научная публикация

Журнал

Zeolites
ISSN: 0144-2449 , E-ISSN: 1873-3115

Вых. Данные

Год: 1987, Том: 7, Номер: 1, Страницы: 79-83 Страниц : 5 DOI: 10.1016/0144-2449(87)90125-4

Авторы

Kustov L.M. ¹ , Kazansky V.B. ¹ , Ratnasamy P. ²

Организации

1	Zelinsky Institute of Organic Chemistry, Moscow, USSR
2	National Chemical Laboratory, Pune - 411008, India

Synthetic H-ferrisilicate of the pentasil family was studied by means of diffuse reflectance i.r., e.s.r. and luminescence spectroscopies. In this paper it is shown that only a part of the Fe3+ ions (< 30%) enter the lattice isomorphically replacing silicon ions. The rest of the iron ions are in an extralattice state, perhaps in the form of a Fe2O3 microphase in zeolite pores. Extralattice iron ions can be easily reduced to Fe2+ species. Structural hydroxyl groups connected with Fe3+ ions in the framework are shown to have bridging structure and to possess strong acidic properties.

Kustov L.M. , Kazansky V.B. , Ratnasamy P.
Spectroscopic investigation of iron ions in a novel ferrisilicate pentasil zeolite
Zeolites. 1987. V.7. N1. P.79-83. DOI: 10.1016/0144-2449(87)90125-4 OpenAlex

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