caa a22 4500 606169989 CHVBK 20210128100714.0 cr unu---uuuuu 210128e20150401xx s 000 0 eng 10.1007/s10098-014-0845-1 doi (NATIONALLICENCE)springer-10.1007/s10098-014-0845-1 Silk fibroin/nylon-6 blend nanofilter matrix for copper removal from aqueous solution [Elektronische Daten] [Eda Yalçın, Serap Gedikli, Ahmet Çabuk, Zeynep Karahaliloğlu, Murat Demirbilek, Cem Bayram, Mesut Şam, Necdet Sağlam, Emir Denkbaş] Heavy metal pollution has become a serious problem forliving organisms. In this study, silk fibroin (SF)/nylon-6 nanofiber matrices were formed by electrospinning and their surface was modified with calcium phosphate (CaP) crystals to increase the affinity of divalent heavy metals. The properties ofmatrices were evaluated as a filter matrix for copper adsorption from aqueous solution. Attenuated total reflectance fourier transform infrared spectroscopy(ATR-FTIR), scanning electron microscopy(SEM), energy-dispersive X-ray spectroscopy(EDXS), X-ray photoelectron spectroscopy(XPS), and alizarin red staining method were used for characterization. Adsorption studies were performed by batch and continuous system. The various parameters regarding adsorption process such as pH of solution, surface area, initial copper concentration, and flow rate were optimized. Toxicity values were assessed before and after the Cu(II) adsorption studies. The resultantSF/nylon-6 nanofiber matrices indicate an excellent fibrous structure without beads (fiber diameterat250±50 nm) and modified successfully with CaP crystals. Adsorption results showed that the removal efficiency of copper could reach 32% by continuous flow system whereas77% by batch system. Acute toxicity bioassays usingVibrio fischeri showed that the toxicity decreased after continuous and batch flow systems. For desorption study, different concentrations of various desorption solutions were used and the percentage of Cu(II) desorption was determined as 11%, approximately. Springer-Verlag Berlin Heidelberg, 2014 Copper nationallicence Silk fibroin nationallicence Nylon-6 nationallicence Nanofiber nationallicence Calcium phosphate crystals nationallicence Adsorption nationallicence Yalçın Eda Nanotechnology and Nanomedicine Division, Department of Chemistry, Hacettepe University, Beytepe, 06800, Ankara, Turkey aut Gedikli Serap Graduate School of Natural and Applied Sciences, Eskisehir Osmangazi University, 26480, Eskisehir, Turkey aut Çabuk Ahmet Department of Biology, Faculty of Arts and Science, Eskisehir Osmangazi University, 26480, Eskisehir, Turkey aut Karahaliloğlu Zeynep Nanotechnology and Nanomedicine Division, Department of Chemistry, Hacettepe University, Beytepe, 06800, Ankara, Turkey aut Demirbilek Murat Nanotechnology and Nanomedicine Division, Department of Chemistry, Hacettepe University, Beytepe, 06800, Ankara, Turkey aut Bayram Cem Nanotechnology and Nanomedicine Division, Department of Chemistry, Hacettepe University, Beytepe, 06800, Ankara, Turkey aut Şam Mesut Department of Biology, Aksaray University, Aksaray, Turkey aut Sağlam Necdet Nanotechnology and Nanomedicine Division, Department of Chemistry, Hacettepe University, Beytepe, 06800, Ankara, Turkey aut Denkbaş Emir Biochemistry Division, Department of Chemistry, Hacettepe University, Beytepe, 06800, Ankara, Turkey aut Clean Technologies and Environmental Policy Springer Berlin Heidelberg 17/4(2015-04-01), 921-934 1618-954X 17:4<921 2015 17 10098 https://doi.org/10.1007/s10098-014-0845-1 text/html Onlinezugriff via DOI BK010053 XK010053 XK010000 Metadata rights reserved Springer special CC-BY-NC licence nationallicence 1 research-article jats NATIONALLICENCE NATIONALLICENCE NL-springer NATIONALLICENCE 856 40 https://doi.org/10.1007/s10098-014-0845-1 text/html Onlinezugriff via DOI NATIONALLICENCE 700 1- Yalçın Eda Nanotechnology and Nanomedicine Division, Department of Chemistry, Hacettepe University, Beytepe, 06800, Ankara, Turkey aut NATIONALLICENCE 700 1- Gedikli Serap Graduate School of Natural and Applied Sciences, Eskisehir Osmangazi University, 26480, Eskisehir, Turkey aut NATIONALLICENCE 700 1- Çabuk Ahmet Department of Biology, Faculty of Arts and Science, Eskisehir Osmangazi University, 26480, Eskisehir, Turkey aut NATIONALLICENCE 700 1- Karahaliloğlu Zeynep Nanotechnology and Nanomedicine Division, Department of Chemistry, Hacettepe University, Beytepe, 06800, Ankara, Turkey aut NATIONALLICENCE 700 1- Demirbilek Murat Nanotechnology and Nanomedicine Division, Department of Chemistry, Hacettepe University, Beytepe, 06800, Ankara, Turkey aut NATIONALLICENCE 700 1- Bayram Cem Nanotechnology and Nanomedicine Division, Department of Chemistry, Hacettepe University, Beytepe, 06800, Ankara, Turkey aut NATIONALLICENCE 700 1- Şam Mesut Department of Biology, Aksaray University, Aksaray, Turkey aut NATIONALLICENCE 700 1- Sağlam Necdet Nanotechnology and Nanomedicine Division, Department of Chemistry, Hacettepe University, Beytepe, 06800, Ankara, Turkey aut NATIONALLICENCE 700 1- Denkbaş Emir Biochemistry Division, Department of Chemistry, Hacettepe University, Beytepe, 06800, Ankara, Turkey aut NATIONALLICENCE 773 0- Clean Technologies and Environmental Policy Springer Berlin Heidelberg 17/4(2015-04-01), 921-934 1618-954X 17:4<921 2015 17 10098