title: Low-cost composites based on porous titania-apatite surfaces for the removal of patent blue V from water: Effect of chemical structure of dye.
abstract: Hydroxyapatite/titania nanocomposites (TiHAp) were synthesized from a mixture of a titanium alkoxide solution and dissolution products of a Moroccan natural phosphate. The simultaneous gelation and precipitation processes occurring at room temperature led to the formation of TiHAp nanocomposites. X-ray diffraction results indicated that hydroxyapatite and anatase (TiO2) were the major crystalline phases. The specific surface area of the nanocomposites increased with the TiO2content. Resulting TiHAp powders were assessed for the removal of the patent blue V dye from water. Kinetic experiments suggested that a sequence of adsorption and photodegradation is responsible for discoloration of dye solutions. These results suggest that such hydroxyapatite/titania nanocomposites constitute attractive low-cost materials for the removal of dyes from industrial textile effluent.
authors.affiliation: Laboratoire de Chimie Physique Générale, Faculté des Sciences, Université Mohammed V, Av. Ibn Batouta, B.P. 1014 Rabat, Morocco.
authors.forename: C
authors.initials: C
authors.lastname: El Bekkali
authors.affiliation: Laboratoire de Chimie Physique Générale, Faculté des Sciences, Université Mohammed V, Av. Ibn Batouta, B.P. 1014 Rabat, Morocco.
authors.forename: H
authors.initials: H
authors.lastname: Bouyarmane
authors.affiliation: Laboratoire de Chimie Physique Générale, Faculté des Sciences, Université Mohammed V, Av. Ibn Batouta, B.P. 1014 Rabat, Morocco.
authors.forename: S
authors.initials: S
authors.lastname: Saoiabi
authors.affiliation: Laboratoire National du Contrôle des Médicaments, Rue Lamfaddal Cherkaoui, B.P. 6206 Rabat, Morocco.
authors.forename: M
authors.initials: M
authors.lastname: El Karbane
authors.affiliation: Laboratoire National du Contrôle des Médicaments, Rue Lamfaddal Cherkaoui, B.P. 6206 Rabat, Morocco.
authors.forename: A
authors.initials: A
authors.lastname: Rami
authors.affiliation: Laboratoire de Chimie Physique Générale, Faculté des Sciences, Université Mohammed V, Av. Ibn Batouta, B.P. 1014 Rabat, Morocco.
authors.forename: A
authors.initials: A
authors.lastname: Saoiabi
authors.affiliation: Chimie Interdisciplinarité: Synthèse, Analyse, Modélisation CNRS (CEISAM), Faculté des Sciences et Techniques, Université de Nantes - UBL, B.P. 92208, 44322 Nantes Cedex 03, France.
authors.forename: M
authors.initials: M
authors.lastname: Boujtita
authors.affiliation: Laboratoire de Chimie Physique Générale, Faculté des Sciences, Université Mohammed V, Av. Ibn Batouta, B.P. 1014 Rabat, Morocco.
authors.forename: A
authors.initials: A
authors.lastname: Laghzizil
keywords: Adsorption; Apatite/titania; Degradation; Kinetic modeling; Patent blue; Photocatalysis