naa a22 4500 51075273X CHVBK 20180411083110.0 cr unu---uuuuu 180411e20131101xx s 000 0 eng 10.1007/s11270-013-1760-5 doi (NATIONALLICENCE)springer-10.1007/s11270-013-1760-5 Removal of Basic Dye from Aqueous Solutions Using a Novel Nanocomposite Hydrogel: N -Vinyl 2-Pyrrolidone/Itaconic Acid/Organo Clay [Elektronische Daten] [Gülşah Çöle, Mehmet Gök, Gamze Güçlü] In this work, N-vinyl-2-pyrrolidone/itaconic acid/organo clay nanocomposite hydrogels were synthesized by free radical polymerization technique using different amounts of organo clay. Fourier transform infrared spectroscopy, X-ray diffraction, and scanning electron microscopy techniques were used for characterization of nanocomposite hydrogels and swelling, and mechanical properties of these hydrogels were investigated. Safranine-T adsorption capacities of nanocomposite hydrogels were investigated at different conditions such as pH, contact time, adsorbent dose and initial concentration of dye. The optimum pH value was found to be pH6. According to the organo clay content, there are no significant differences in dye adsorption capacities of nanocomposite hydrogels until the clay content reaches 5% wt. While the organo clay amount of nanocomposite hydrogels increases up to 10% wt, dye adsorption capacities of these hydrogels significantly decrease. Adsorption processes of dye onto the nanocomposite hydrogels follow pseudo-second-order type adsorption kinetic. The equilibrium adsorption data have been evaluated using Freundlich and Langmuir Isotherm models. The results illustrated that the adsorption follows Langmuir isotherm. Springer Science+Business Media Dordrecht, 2013 N -Vinyl-2-pyrrolidone nationallicence Itaconic acid nationallicence Safranine-T nationallicence Organo clay nationallicence Nanocomposite nationallicence Çöle Gülşah Faculty of Engineering, Chemical Engineering Department, Istanbul University, 34320, Istanbul, Avcilar, Turkey aut Gök Mehmet Faculty of Engineering, Chemical Engineering Department, Istanbul University, 34320, Istanbul, Avcilar, Turkey aut Güçlü Gamze Faculty of Engineering, Chemical Engineering Department, Istanbul University, 34320, Istanbul, Avcilar, Turkey aut Water, Air, & Soil Pollution Springer Netherlands 224/11(2013-11-01), 1-16 0049-6979 224:11<1 2013 224 11270 https://doi.org/10.1007/s11270-013-1760-5 text/html Onlinezugriff via DOI 1 research-article jats NATIONALLICENCE 856 40 https://doi.org/10.1007/s11270-013-1760-5 text/html Onlinezugriff via DOI NATIONALLICENCE 700 1- Çöle Gülşah Faculty of Engineering, Chemical Engineering Department, Istanbul University, 34320, Istanbul, Avcilar, Turkey aut NATIONALLICENCE 700 1- Gök Mehmet Faculty of Engineering, Chemical Engineering Department, Istanbul University, 34320, Istanbul, Avcilar, Turkey aut NATIONALLICENCE 700 1- Güçlü Gamze Faculty of Engineering, Chemical Engineering Department, Istanbul University, 34320, Istanbul, Avcilar, Turkey aut NATIONALLICENCE 773 0- Water, Air, & Soil Pollution Springer Netherlands 224/11(2013-11-01), 1-16 0049-6979 224:11<1 2013 224 11270 Metadata rights reserved Springer special CC-BY-NC licence nationallicence BK010053 XK010053 XK010000 NATIONALLICENCE NATIONALLICENCE NL-springer