1. Low-cost composites based on porous titania–apatite surfaces for the removal of patent blue V from water: Effect of chemical structure of dye.
- Author
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El Bekkali, C., Bouyarmane, H., Saoiabi, S., El Karbane, M., Rami, A., Saoiabi, A., Boujtita, M., and Laghzizil, A.
- Subjects
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TITANIUM dioxide , *CHEMICAL structure , *HYDROXYAPATITE synthesis , *NANOCOMPOSITE materials , *INDUSTRIAL textiles - 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 (TiO 2 ) were the major crystalline phases. The specific surface area of the nanocomposites increased with the TiO 2 content. 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. [ABSTRACT FROM AUTHOR]
- Published
- 2016
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