title: Removal of sulfacid brilliant pink from an aqueous stream by adsorption onto surfactant-modified Ti-pillared montmorillonite.
abstract: A modified hydrophobic and organophilic pillared clay (CTAC-TiH-montm) was prepared by exchanging some Ti polymeric cations into the interlamellar space of one Algerian montmorillonite (montm) and then by co-adsorption of some surfactant molecules such as cetyltrimethylammonium chloride (CTAC). These new materials were used in adsorption of an anionic textile dye: Sulfacid brilliant pink (SAP). According to adsorption isotherms, the organic modification of Ti-montmorillonite clay by CTAC surfactant increases the amount of textile dye fixed to more than 1000 mg g(-1). The adsorption experiments showed that a ratio of 3 mmol of CTAC per g of clay and an acidic medium (pH = 4) were the optimal parameters necessary to obtain good adsorption uptake and colourless treated solutions. A comparative study proved the high adsorption capacity of the synthesised adsorbents; they can thus be considered as powerful competitors to activated carbon in the treatment of aqueous textile plants and industry effluents.
authors.affiliation: Department of Chemical Engineering, University of Blida, Algeria.
authors.forename: O
authors.initials: O
authors.lastname: Bouras
authors.forename: T
authors.initials: T
authors.lastname: Chami
authors.forename: M
authors.initials: M
authors.lastname: Houari
authors.forename: H
authors.initials: H
authors.lastname: Khalaf
authors.forename: J C
authors.initials: JC
authors.lastname: Bollinger
authors.forename: M
authors.initials: M
authors.lastname: Baudu
mesh_terms: D000327:Adsorption; D000538:Aluminum Silicates; D000077215:Clay; D004396:Coloring Agents / Q000737:chemistry*; D011108:Polymers; D013501:Surface-Active Agents / Q000737:chemistry; D013783:Textile Industry; D014025:Titanium / Q000737:chemistry*; D018508:Water Purification / Q000379:methods*
chemical_list: D000538:Aluminum Silicates; D004396:Coloring Agents; D011108:Polymers; D013501:Surface-Active Agents; D014025:Titanium; D000077215:Clay