naa a22 4500 510748902 CHVBK 20180411083057.0 cr unu---uuuuu 180411e20130101xx s 000 0 eng 10.1007/s11270-012-1393-0 doi (NATIONALLICENCE)springer-10.1007/s11270-012-1393-0 The Removal of Cyanide Ions from Aquatic Environments by Quaternizable p(4-VP) Hydrogels of Different Dimensions [Elektronische Daten] [Nurettin Sahiner, Ozgur Ozay, Nahit Aktas] Hydrogels based on p(4-VP) of different dimensions were prepared and, after chemical modification, were used in the removal of one of the most potent toxic materials, cyanide. Macro and micron p(4-VP) hydrogel swelling behavior was evaluated in various aquatic environments. HCl, bromoethane, 1-bromobutane, 1-bromohexane, and 2-bromoethylamine were used as quaternizing agents to generate positive charges on both p(4-VP) macrogels and microgels. The modified p(4-VP) macrogels and microgels were used in cyanide ion removal for the first time from aqueous environments. The p(4-VP)-HCl at macro and micro sizes removed almost 49 and 61mg cyanide ions per gram hydrogel in deionized water after modification, respectively. Moreover, the absorption capacity of the modified p(4-VP) hydrogel did not change significantly in tap, drinking, and creek waters. Parameters that affect the absorption process, such as cyanide concentration, contact time, hydrogel amount, and contaminated water source, were investigated. Additionally, magnetic field responsive macro and micro p(4-VP) hydrogel composites provided many advantages, such as easy handling after cyanide absorption, e.g., ready removal of cyanide-loaded p(4-VP) composites with an externally applied magnetic field. Langmuir and Freundlich adsorption isotherms were applied to the data obtained for cyanide uptake from aqueous environments. Figure Magnetic field responsive (nanoparticle composite in the removal cyanide from aqueous solutions Springer Science+Business Media Dordrecht, 2012 Cyanide removal nationallicence Hydrogel nationallicence Microgel nationallicence Quaternization nationallicence p(4-VP) particles nationallicence Sahiner Nurettin Chemistry Department, Faculty of Science and Arts, Canakkale Onsekiz Mart University, Terzioglu Campus, 17100, Canakkale, Turkey aut Ozay Ozgur Nanoscience and Technology Research and Application Center (NANORAC), Canakkale Onsekiz Mart University, Terzioglu Campus, 17100, Canakkale, Turkey aut Aktas Nahit Chemical Engineering Department, Faculty of Engineering, Yüzüncü Yıl University, 65080, Van, Turkey aut Water, Air, & Soil Pollution Springer Netherlands 224/1(2013-01-01), 1-13 0049-6979 224:1<1 2013 224 11270 https://doi.org/10.1007/s11270-012-1393-0 text/html Onlinezugriff via DOI 1 research-article jats NATIONALLICENCE 856 40 https://doi.org/10.1007/s11270-012-1393-0 text/html Onlinezugriff via DOI NATIONALLICENCE 700 1- Sahiner Nurettin Chemistry Department, Faculty of Science and Arts, Canakkale Onsekiz Mart University, Terzioglu Campus, 17100, Canakkale, Turkey aut NATIONALLICENCE 700 1- Ozay Ozgur Nanoscience and Technology Research and Application Center (NANORAC), Canakkale Onsekiz Mart University, Terzioglu Campus, 17100, Canakkale, Turkey aut NATIONALLICENCE 700 1- Aktas Nahit Chemical Engineering Department, Faculty of Engineering, Yüzüncü Yıl University, 65080, Van, Turkey aut NATIONALLICENCE 773 0- Water, Air, & Soil Pollution Springer Netherlands 224/1(2013-01-01), 1-13 0049-6979 224:1<1 2013 224 11270 Metadata rights reserved Springer special CC-BY-NC licence nationallicence BK010053 XK010053 XK010000 NATIONALLICENCE NATIONALLICENCE NL-springer