title: Modification of nanosized natural montmorillonite for ultrasound-enhanced adsorption of Acid Red 17.
abstract: This work aims to modify montmorillonite (MMT) via dodecyltrimethylammonium bromide (DTMA) and investigate its ability in ultrasound (US) assisted decolorization of a polluted solution. BET surface area of MMT was increased from 19.76 to 42.57 m(2)/g and basal spacing of MMT structural layers was increased from 1.13 to 1.69 nm by DTMA modification. The application of DTMA-modified MMT (DTMA-MMT) and US for the decolorization of Acid Red 17 (AR17) showed that US could improve the ability of DTMA-MMT on decolorization of AR17 solution due to simultaneous adsorption and sonocatalysis. The ability of US assisted DTMA-MMT was slightly decreased with pH, the initial dye concentration and the presence of inorganic anions.
authors.affiliation: Department of Petroleum and Natural Gas Engineering, Oltu Faculty of Earth Sciences, Atatürk University, 25240 Erzurum, Turkey.
authors.forename: Ozkan
authors.initials: O
authors.lastname: Acisli
authors.affiliation: Research Laboratory of Advanced Water and Wastewater Treatment Processes, Department of Applied Chemistry, Faculty of Chemistry, University of Tabriz, 51666-16471 Tabriz, Iran. Electronic address: a_khataee@tabrizu.ac.ir.
authors.forename: Alireza
authors.initials: A
authors.lastname: Khataee
authors.affiliation: Department of Chemistry, Faculty of Science, Atatürk University, 25240 Erzurum, Turkey.
authors.forename: Semra
authors.initials: S
authors.lastname: Karaca
authors.affiliation: Faculty of Chemistry, Kharazmi University, 15719-14911 Tehran, Iran.
authors.forename: Mohsen
authors.initials: M
authors.lastname: Sheydaei
keywords: Adsorption; Dye removal; Nanoclay; Sonocatalysis; Sonodegradation