title: Fly ash-TiO2 nanocomposite material for multi-pollutants wastewater treatment.
abstract: This paper reports on the synthesis, characterization and adsorption properties of a novel nano-composite obtained using the hydrothermal method applied to a fly ash-TiO2 slurry and hexadecyltrimethyl-ammonium bromide, as surface controlling agent. The new adsorbent was investigated in terms of crystallinity (XRD), surface properties (AFM, SEM, and porosity and BET surface) and surface chemistry (EDX, FTIR). The nanocomposite's properties were sequentially tested in adsorption and photocatalysis processes applied to multi-pollutant synthetic wastewaters loaded with copper cations and two industrial dyes: the acid dye Bemacid Blau and the reactive dye Bemacid Rot; the nano-composite substrate allowed reaching high removal efficiencies, above 90%, both in adsorption and in photodegradation experiments, in optimised conditions.
authors.affiliation: Transilvania University of Brasov, Research Center: Renewable Energy Systems and Recycling, Eroilor 29, 500036 Brasov, Romania. Electronic address: maria.visa@unitbv.ro.
authors.forename: Maria
authors.initials: M
authors.lastname: Visa
authors.affiliation: Transilvania University of Brasov, Research Center: Renewable Energy Systems and Recycling, Eroilor 29, 500036 Brasov, Romania.
authors.forename: Luminita
authors.initials: L
authors.lastname: Andronic
authors.affiliation: Transilvania University of Brasov, Research Center: Renewable Energy Systems and Recycling, Eroilor 29, 500036 Brasov, Romania.
authors.forename: Anca
authors.initials: A
authors.lastname: Duta
mesh_terms: D060729:Coal Ash / Q000737:chemistry*; D053761:Nanocomposites / Q000737:chemistry; D014025:Titanium / Q000737:chemistry*; D018505:Waste Management; D062065:Wastewater / Q000737:chemistry*; D014874:Water Pollutants, Chemical / Q000737:chemistry*
chemical_list: D060729:Coal Ash; D014025:Titanium; D062065:Wastewater; D014874:Water Pollutants, Chemical; C009495:titanium dioxide
keywords: Adsorption; Dyes; Fly ash; Heavy metal; Photodegradation; TiO(2)