Inorganic ion-exchange mambranes of insoluble acid salts of tetravalent metals. V. Pellicles of mixed hafnium-titanium phosphates

Conference · Sat Dec 31 04:00:00 EST 1994

OSTI ID:213151

Shakshooki, S K; El Hamroni, S M; Elshawsh, H B ^[1]

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1. Fateh Univ., Tripoli (Libyan Arab Jamahiriya); and others

Crystalline mixed hafnium-titanium phosphates Hf{sub x}Ti{sub (1-x)} (HPO{sub 4}){sub 2}.H{sub 2}O,(Hf{sub x}Ti{sub (1-x)}P) where x=0.93, 0.87 and 0.79 have been prepared by the HF method in plastic container as already reported. Here, the authors are reporting the preparation of flexible pellicles (thin films) of mixed hafnium-titanium phosphates, (where x=0.93, 0.87 and 0.79), by a process of intercalation-deintercalation of propylamine in mixed hafnium-titanium phosphates. The authors have found that on intercalation of 0.1M aqueous solution of propylamine ({approximately}50% loading) in a given crystalline mixed hafnium-titanium phosphates result in the formation of flexible thin films of Hf{sub x}Ti{sub (1-x)} P-propylamine on filtration on porous plastic filter. Deintercalation of Hf{sub x}Ti{sub (1-x)}P-propylamine in aqueous solution at 15{degrees}C followed by filtration on a porous plastic filter gives flexible pellicles of mixed Hf{sub x}Ti{sub (1-x)}(HPO{sub 4}){sub 2}.H{sub 2}O.

• OSTI ID: 213151
• Report Number(s): CONF-940713--
• Country of Publication: United States
• Language: English

Related Subjects

36 MATERIALS SCIENCE
40 CHEMISTRY
CHEMICAL PREPARATION
HAFNIUM PHOSPHATES
HYDRATES
ION EXCHANGE MATERIALS
MEMBRANES
STOICHIOMETRY
SYNTHESIS
THIN FILMS
TITANIUM PHOSPHATES