Evaluation of new surfactant expanded zirconium and titanium phosphates for polycyclic aromatic hydrocarbons extraction from waters

A newly synthesized family of materials prepared with surfactant as organic template were tested for the extraction of polycyclic aromatic hydrocarbons (PAHs) from water, using pyrene (Pyr) and benzo[ a]pyrene (B[ a]P) as PAHs representatives. Particular attention was paid to the evaluation of the r...

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Bibliographic Details
Published in:Chemosphere (Oxford) 2004-10, Vol.57 (3), p.179-186
Main Authors: Jiménez, M.V, Algarra, M, Jiménez, J.J, Lamotte, M
Format: Article
Language:English
Subjects:
Absorption
Applied sciences
Benzo(a)pyrene
Biological and physicochemical phenomena
Earth sciences
Earth, ocean, space
Engineering and environment geology. Geothermics
Exact sciences and technology
Methylene Chloride
Natural water pollution
Phosphate
Pollution
Pollution, environment geology
Polycyclic aromatic hydrocarbons
Polycyclic Aromatic Hydrocarbons - chemistry
Pyrenes
Solid sorbent
Surface-Active Agents - chemistry
Surfactant template
Titanium
Titanium - chemistry
Water Pollutants, Chemical
Water Purification - methods
Water treatment and pollution
Zirconium
Zirconium - chemistry
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Summary:A newly synthesized family of materials prepared with surfactant as organic template were tested for the extraction of polycyclic aromatic hydrocarbons (PAHs) from water, using pyrene (Pyr) and benzo[ a]pyrene (B[ a]P) as PAHs representatives. Particular attention was paid to the evaluation of the recovery factors with dichloromethane as eluent in order to estimate their potential as adsorbing solid phases for PAH remediation or analysis. Eleven lamellar MCM-50 type materials incorporating n-alkyl- ( n=12, 16, 18) trimethylammonium bromide molecules with different concentrations and chain lengths and two hexagonal MCM-41 type materials incorporating octadecyl-trimethyl ammonium bromide were tested. Best results were obtained by preparing lamellar MCM-50 zirconium and titanium phosphates in the presence of n-dodecyl-trimethylammonium at a relative molar concentration (surfactant/phosphate) of 1.
ISSN:0045-6535
1879-1298
DOI:10.1016/j.chemosphere.2004.06.009