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

Jiménez, M. Victoria; Algarra, Manuel; Jiménez, Jacqueline; Lamotte, Michel

doi:10.1016/j.chemosphere.2004.06.009

Cited by 5 publications

(2 citation statements)

References 23 publications

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“…12,13 Recently they have been considered as promising candidates for extraction of polyaromatic hydrocarbons from water. 14 It is expected that the sorption capability of these materials is related to the polarity of their sites. Their large surface area and internal voids have particular physicochemical properties that determine their possible applications and should be studied accordingly.…”

Section: Introductionmentioning

confidence: 99%

MCM-41 and Na–magadiite silicates internal voids probed by pyrene fluorescence spectroscopy

Sena

Pastore

Pessine

2009

Phys. Chem. Chem. Phys.

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Investigation of the properties of two different silicate materials, namely MCM-41, with one-dimensional, cylindrical pores (4.04 nm diameter), and Na-magadiite, with a bidimensional, layered structure (1.67 nm between layers) was carried out. These materials may be used as sorbents, and their polarity is determinative to the kind of applications they may be employed at. Pyrene, which presents a vibronically resolved emission spectrum, was used as a fluorescent probe to give information on the polarity of these silicates voids. The ratio of band intensity at 383 nm (band 3) to that at 373 nm (band 1) is known to diminish as the polarity of the medium increases. Pristine sorbents and pyrene-adsorbed ones were characterized by thermogravimetric analysis and X-ray diffraction. UV-VIS emission spectra of included pyrene were recorded at temperatures ranging from 10 to 300 K, and from comparing the I 3 : I 1 ratio it was found that Na-magadiite internal sites correspond to a less polar medium than those in MCM-41. This is in accordance with the thermogravimetric data, which shows that a larger amount of pyrene was included in Na-magadiite, despite its smaller dimensions. Yet, excimer emission, usually a concentration dependent phenomenon, was mainly observed for the MCM-41 samples. Upon temperature lowering, pyrene molecules move to other sites of different polarities, towards an intermediary value for both materials.

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Section: Introductionmentioning

confidence: 99%

MCM-41 and Na–magadiite silicates internal voids probed by pyrene fluorescence spectroscopy

Sena

Pastore

Pessine

2009

Phys. Chem. Chem. Phys.

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“…Some entity frameworks in layered architectures have been utilized as ideal "hosts" that aid in the construction of multifunctional adsorbents such as layered double hydroxides, 2 layered transition metal oxides, 3 graphite, and other lamellar materials. 4,5 In particular, layered magnesium silicate has been applied in absorbing to pollutants 6 because of its high surface area, 7,8 properties of ion exchange, hydrophobic character and molecular sieves. 9 As a guest, surfactants and block-copolymers oen are used extensively in the shape-controlled synthesis of various functional materials, in which they play the role of a so template or stabilizer.…”

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confidence: 99%

PEI@Mg₂SiO₄: an efficient carbon dioxide and nitrophenol compounds adsorbing material

2014

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Bioremediation for the recovery of oil polluted marine environment, opportunities and challenges approaching the Blue Growth

Tedesco,

Balzano,

Coppola

et al. 2024

Marine Pollution Bulletin

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

Cited by 5 publications

References 23 publications

MCM-41 and Na–magadiite silicates internal voids probed by pyrene fluorescence spectroscopy

MCM-41 and Na–magadiite silicates internal voids probed by pyrene fluorescence spectroscopy

PEI@Mg₂SiO₄: an efficient carbon dioxide and nitrophenol compounds adsorbing material

Bioremediation for the recovery of oil polluted marine environment, opportunities and challenges approaching the Blue Growth

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

Cited by 5 publications

References 23 publications

MCM-41 and Na–magadiite silicates internal voids probed by pyrene fluorescence spectroscopy

MCM-41 and Na–magadiite silicates internal voids probed by pyrene fluorescence spectroscopy

PEI@Mg2SiO4: an efficient carbon dioxide and nitrophenol compounds adsorbing material

Bioremediation for the recovery of oil polluted marine environment, opportunities and challenges approaching the Blue Growth

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PEI@Mg₂SiO₄: an efficient carbon dioxide and nitrophenol compounds adsorbing material