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Browsing by Author "Boyacı, Ezel"
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Chitosan-immobilized pumice for the removal of As(V) from waters
Turan, Dilek; Kocahakimoğlu, Cemre; Boyacı, Ezel; Sofuoğlu, Sait Cemil; Eroğlu, Ahmet E. (Springer, 2014-05)A novel sorbent, chitosan-immobilized pumice, has been prepared for the sorption of As(V) from waters prior to its determination by hydride generation atomic absorption spectrometry. The success of the immobilization has ... -
Development of novel functionalized solid phase extraction (SPE) sorbents and solid phase microextraction (SPME) fiber coatings for analytical applications
Boyacı, Ezel (İzmir Institute of Technology, 2011)In the first part of the study, amino-, mercapto- and bifunctional silica-based solid phase extraction (SPE) sorbents were developed, characterized and utilized for sorption and speciation of inorganic As(III)/As(V). ... -
Electrospun amino-functionalized PDMS as a novel SPME sorbent for the speciation of inorganic and organometallic arsenic species†
Boyacı, Ezel; Horzum, Nesrin; Çağır, Ali; Demir, Mustafa M.; Eroğlu, Ahmet E. (Royal Society of Chemistry, 2013-09-19)Sol–gel based amine-functionalized SPME fibers (PDMS-weak anion exchanger) were prepared and used for direct mode extraction of dimethylarsinic acid (DMA), monomethylarsonic acid (MMA), and arsenate (As(V)) from aqueous ... -
Green synthesis of iron nanoparticles and their application as a Fenton-like catalyst for the degradation of aqueous cationic and anionic dyes
Shahwan, Talal; Abu-Sirriah, Sadieh; Nairat, Muath; Boyacı, Ezel; Eroğlu, Ahmet E.; Scott, Thomas B.; Hallam, Keith R. (Elsevier, 2011-08-01)Iron nanoparticles were produced using extracts of green tea leaves (GT-Fe NPs). The materials were characterized using TEM, SEM/EDX, XPS, XRD, and FTIR techniques and were shown to contain mainly iron oxide and iron ... -
Sorption efficiency of chitosan nanofibers toward metal ions at low concentrations
Horzum, Nesrin; Boyacı, Ezel; Eroğlu, Ahmet E.; Shahwan, Talal; Demir, Mustafa M. (American Chemical Society, 2010-11-16)Chitosan fibers showing narrow diameter distribution with a mean of 42 nm were produced by electrospinning and utilized for the sorption of Fe(III), Cu(II), Ag(I), and Cd(II) ions from aqueous solutions. The ion concentrations ... -
Sorption of As (V) from waters by use of novel amine-containing sorbents prior to HGAAS and ICP-MS determination
Boyacı, Ezel (İzmir Institute of Technology, 2008)A novel sorption method utilizing several amine-containing sorbents was developed for arsenic determination in waters by hydride generation atomic absorption spectrometry (HGAAS) and inductively coupled plasma mass ... -
Sorption of As(V) from waters using chitosan and chitosan-immobilized sodium silicate prior to atomic spectrometric determination
Boyacı, Ezel; Eroğlu, Ahmet E.; Shahwan, Talal (Elsevier, 2010-01)A natural biosorbent containing amine functional groups, chitosan, and a novel sorbent, chitosan-immobilized sodium silicate, were prepared and utilized for the selective sorption of As(V) from waters prior to its determination ... -
Synthesis, characterization and application of a novel mercapto- and amine-bifunctionalized silica for speciation/sorption of inorganic arsenic prior to inductively coupled plasma mass spectrometric determination
Boyacı, Ezel; Çağır, Ali; Shahwan, Talal; Eroğlu, Ahmet E. (Elsevier, 2011-09-15)A bifunctional sorbent, (NH2 + SH)silica, containing both amine and mercapto functionalities was prepared by modification of silica gel with 3-(triethoxysilyl)propylamine and (3-mercaptopropyl)trimethoxysilane. In addition ...
