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Biosorption of Ni (II), Pb (II), and Cu (II) metal ions on the chitin isolated from spider species of Drassodes lapidosus
(Tubitak Scientific & Technological Research Council Turkey, 2024) Emini, Albulene; Seyyar, Osman; Surme, Yavuz
This study evaluates the biosorption ability of chitin derived from a specific spider species, namely Drassodes lapidosus (Walckenaer, 1802), that belongs to the family Gnaphosidae. The obtained chitin was characterized using Fourier transform infrared spectroscopy (FT-IR), thermogravimetric analysis (TGA), X-ray diffraction (XRD), and scanning electron microscopy (SEM) analysis. In the alpha form of the obtained chitin, its thermal stability was observed to be 356.9 degree celsius and, the CrI value was 69.16%. In addition, this chitin was used as a bioadsorbent to remove heavy metal ions such as Ni (II), Cu (II), and Pb (II) from the aqueous medium by solid phase extraction (SPE) method using mini adsorption columns. The SPE method was optimized by changing one variable at a time. Main parameters affecting the SPE technique such as solution pH, sample volume, and interfering ions were optimized in model metal solutions containing Pb (II), Cu (II), and Ni (II) at certain concentrations. Metal concentrations were determined using a flame atomic absorption spectrophotometer (FAAS). The results revealed that Pb (II), Cu (II), and Ni (II) ions could be quantitatively removed from their environment at pH 5 through adsorption onto the surface of the chitin, even in the presence of possible interfering anions and cations at high concentrations. Pb (II), Cu (II), and Ni (II) could be separated quantitatively from aqueous solutions by using Drassodes lapidosus chitin as an adsorbent.
Cloud point extraction procedure for flame atomic absorption spectrometric determination of lead(II) in sediment and water samples
(SPRINGER WIEN, 2007) Surme, Yavuz; Narin, Ibrahim; Soylak, Mustafa; Yuruk, Huseyin; Dogan, Mehmet
The conditions for cloud point extraction of lead(II) from aqueous solutions were investigated and optimized. The procedure is based on the separation of Pb(II) - brillant cresyl blue (BCB) complexes into the micellar media by adding the surfactant Triton X-114. After phase separation, the surfactant-rich phase was dissolved with 1 mol L-1 HNO3 in ethanol and diluted with 1 mol L-1 HNO3 solution before lead was determined by flame atomic absorption spectrometry. Optimization of the pH, ligand and surfactant quantities, incubation time, temperature, viscosity, sample volume, and interfering ions was performed. The effects of the matrix ions were also examined. The detection limits for three times the standard deviations of the blank for lead were 7.5 mu g L-1 for water samples and 0.33 mu g g(-1) for sediment samples. The validity of cloud point extraction was checked by employing certified reference samples of Lake Sediment IAEA-SL-1 and Sewage Sludge BCR-CRM 144R. The procedure was applied to natural waters and sediment samples with satisfactory results (recoveries > 95%, relative standard deviations < 6.4%).
Comparison of preconcentration and determination methods of a textile dye by spectrophotometry: cloud point extraction and solid-phase extraction
(DESALINATION PUBL, 2016) Surme, Yavuz; Bisgin, A. Taner; Ucan, Mustafa; Narin, Ibrahim
This study deals with the preconcentration, determination, and removal of Lanaset Blue 2R textile dye from aqueous medium by two different methods. For this purpose, cloud point extraction (CPE) and solid phase extraction (SPE) methods were optimized. Amberlite XAD-1180 resin was used as adsorbent for SPE while Tergitol NP-7 non-ionic surfactant was used as surfactant rich phase for CPE. The common optimization steps were determined as initial solution pH, linear dynamic range, sample volume, equilibrium time and limits of detections were characterized for both SPE and CPE techniques while specific optimization steps such as temperature and surfactant concentration were also determined for CPE. The results showed that the CPE and SPE of dye were quantitative at pH 6. Detection limits were 21-gL(-1) for CPE and 9-gL(-1) for SPE. The enrichment factors were 40 and 10 for SPE and CPE, respectively. The real sample analysis was successfully performed with both techniques. The strengths and weaknesses of the methods were highlighted.
Corrosion behavior of mild steel in the presence of scale inhibitor in sulfuric acid solution
(MAIK NAUKA/INTERPERIODICA/SPRINGER, 2011) Surme, Yavuz; Gurten, A. Ali; Bayol, Emel
Surfactants such as non-ionic polyethylene glycol tert-octylphenyl ether (Triton X-114) have been studied as efficient corrosion inhibitors in acid medium. In this study inhibition performance of Triton X-114 has been evaluated as corrosion inhibitor for mild steel in 0.5 mol l(-1) H(2)SO(4). The electrochemical impedance spectroscopy (EIS), potentiodynamic polarization and linear polarization (LPR) techniques has been applied to determine the electrochemical behaviour of Triton X-114. The maximum efficiency of Triton X-114 was found as 96% at the concentration 5.0 x 10(-5) mol l(-1). The adsorption isotherm of inhibitor on the mild steel surface was found to be in a good agreement with the Langmuir and the standard free energy value (Delta G (ads) (A degrees) ) was calculated as -50.1 kJ mol(-1), which shows that adsorption of Triton X-114 on the mild steel surface improves the inhibition characteristics in 0.5 M H(2)SO(4).
Determination of direct violet 51 dye in water based on its decolorisation by electrochemical treatment
(DE GRUYTER OPEN LTD, 2014) Surme, Yavuz; Demirci, Onur Burak
The decolorisation process of a synthetic textile dye, direct violet 51, was investigated in an aqueous solution using an electrochemical method in a batch electrochemical cell. Graphite electrodes were used as the anode and cathode for the decolorisation process. The parameters such as applied current, initial pH, solution conductivity, interfering ions, and effect of electrodes were optimised. It was found that the dye with an initial concentration of 20 mg L-1 could be removed after 50 min using a current of 100 mA with colour removal of up to 94 %. The UV-VIS spectra of the dye were analysed prior to and after treatment and these confirmed that the conjugated systems were decomposed at a current of 100 mA. The optimised method was successfully applied to real wastewater samples.
Effect of hyamine on electrochemical behaviour of brass alloy in HNO3 solution
(SPRINGER INTERNATIONAL PUBLISHING AG, 2013) Ozkir, Demet; Bayol, Emel; Gurten, A. Ali; Surme, Yavuz; Kandemirli, Fatma
The electrochemical behaviours of a brass alloy in 0.1 M nitric acid, including the hyamine inhibitor with concentrations between 2.5 x 10(-4) M and 1.0 x 10(-5) M, were studied. For this purpose, potentiodynamic polarisation, electrochemical impedance spectroscopy (EIS), linear polarisation resistance (LPR) techniques, and flame atomic absorption spectroscopy (FAAS) were utilised. The inhibitor molecules adsorbed on the brass surface were calculated to be in good agreement with the Langmuir adsorption isotherm and the standard free enthalpy of adsorption (Delta G (ads) (a similar to) ). Hyamine effectively improved the corrosion inhibition of brass and acted as a mixed-type inhibitor on alloy surfaces. The surface morphology of the alloy was also clarified by optical microscopic and SEM techniques. A theoretical study of the corrosion inhibition efficiency of hyamine molecule was carried out using density functional theory (DFT) at the B3LYP/6-311G(d,p) basis set level. (C) 2012 Institute of Chemistry, Slovak Academy of Sciences
Electrodeposition, characterization and long term stability of NiW and NiWZn coatings on copper substrate in alkaline solution
(KOREAN INST METALS MATERIALS, 2013) Surme, Yavuz; Gurten, A. Ali; Kayakirilmaz, Kadriye
This paper describes the electrodeposition of Ni, NiW and NiWZn coatings onto copper surfaces from electrolyte solutions containing Na3C6H5O7, Na2WO4, NiSO4 and ZnSO4. The electrocatalytic effects of electrodeposited coatings were investigated for hydrogen evolution reactions in 1 M NaOH solution. Surface characterization studies were carried out by energy dispersive X-ray spectroscopy, scanning electron microscopy, atomic force microscopy and cross-section analysis. The effect of operating conditions on the chemical composition, microstructure and electrocatalytic properties of Ni-W coatings was studied. The Zn ions were used to improve the active surface area and catalytic activity of the electrodeposited surface. The electrocatalytic activity of NiW and NiWZn coated electrodes for the hydrogen evolution reaction in alkaline solution was compared with that of an electrodeposited Ni electrode and copper substrate by using cathodic polarization curves and electrochemical impedance spectroscopy techniques over 96 h of electrolysis. The results proved that the NiWZn coated electrode showed better electrocatalytic activity and durability than bare Cu, Ni and NiW coatings.
Heavy-metal extraction capability of chalcogenoic aminophosphines derived from 1-amino-4-methylpiperazine
(VERSITA, 2013) Sarioz, Ozlem; Surme, Yavuz; Muradoglu, Vefa
Aminophosphine of the type (Ph2PNHR) derived from 1-amino-4-methylpiperazine and its chalcogen derivatives (Ph2P(X)NHR X = S, Se) were used as ligands in solvent extraction of metal picrates such as Cu2+, Ni2+, and Pb2+ from the aqueous to the organic phase. Influence of parameters such as pH of the aqueous phase, ligand concentration in the organic phase, and concentration of the extractant extracted from the aqueous to the organic phase was investigated to determine the ligands' ability to extract metal ions. Metal picrate extraction was investigated at 25A degrees C using UV-VIS spectrophotometry in dichloromethane in the absence and in the presence of Ph2PNHR and chalcogenides. The extraction results revealed that the extraction percentage of Cu2+, Ni2+, and Pb2+ metals was much higher at lower pH values, indicating an acidity dependent complexation equilibrium.
Highly Selective Separation and Preconcentration of Lead as its Fast Green FCF Complex by Cloud Point Extraction
(Springer Int Publ Ag, 2022) Surme, Yavuz
An effective and highly selective cloud point extraction method was produced for separation of Pb (II) ions from its matrix. The basics of the method depend on the formation of a stable complex between Pb (II) ions and Fast Green FCF dye molecules at pH 7.0. The quantitative extraction of the stable complex into the surfactant-rich phase Tergitol NP-7 was achieved successfully at 40 degrees C. The concentration of Pb (II) was measured by FAAS after its preconcentration. The CPE procedure displayed good analytical characteristics such as limit of detection value of 1.81 mu g L-1, and linearity under optimum conditions. The preconcentration factor of Pb (II) was found as 25 for 50 mL sample volume. Pb (II) ions were quantitatively separated with tolerable limits existence of common matrix ions. The selectivity of the method was also proved in the presence of secondary metal matrix ions. The optimized method was then employed for Pb (II) analysis in wastewater and freshwater samples.
Micelle Mediated Extraction and Flame Atomic Absorption Spectrometric Determination of Trace Amounts of Copper in Different Mushroom Species
(Pleiades Publishing Inc, 2020) Camci, Yeliz; Bisgin, Abdullah Taner; Surme, Yavuz; Ucan, Mustafa; Narin, Ibrahim
A micelle mediated separation and preconcentration method for flame atomic absorption spectrophotometric (FAAS) determination of Cu was developed. The method is based on complex formation between Cu and 1-(2-pyridylazo)-2-naphthol and cloud point extraction with Tergitol NP-7 surfactant prior to FAAS determination. The parameters affecting quantitative extraction of copper, including pH, surfactant and ligand concentrations, incubation time and temperature, were examined and optimized. Under optimum conditions, interference effects of other ions were studied, and tolerance ratios of interference ions were given. Under the optimal conditions, detection and quantitation limits were found as 3 and 8 mu g/L, respectively. Linear dynamic range for Cu(2+)was determined to be 0.13-1.5 mu g/mL. Relative standard deviations were below 6% throughout the experiments. Enhancement factor was determined as 25. Applicability of the method was proved by analysis of standard reference materials. The developed method was applied to determine trace copper contents in different mushroom species.
Micelle mediated selective extraction of lead after its complexation with thionine in aqueous samples prior to FAAS determination
(Springer Int Publ Ag, 2022) Yildirim, Gizem Kahve; Surme, Yavuz
A micelle mediated phase separation and preconcentration process of trace level Pb (II) ions in water samples, after chelating with thionine for determination by flame atomic absorption spectrometry (FAAS) was developed. The preconcentration step was based on the cloud point extraction of lead-thionine chelates with the non-ionic surfactant Tergitol NP-7 (TNP-7). Pb (II) ions were selectively reacted with thionine at pH 6 forming stable hydrophobic metal-chelates. The selectivity of the method proved in the presence of five different possible chelatable metal ions with thionine ligand. The parameters of the method were optimized for solution pH, surfactant concentration, ligand concentration, reaction temperature, incubation time and matrix ions. The reliability of the method was tested by relative standard deviation (RSD %), which was found to be less than 5%. The LOD and LOQ values were found as 1.5 and 5 mu g L-1 and the preconcentration factor was 25. The performance of the process was tested by standard reference material and analyte addition into the real samples.
SIMULTANEOUS PRECONCENTRATION AND DETERMINATION OF Cu2+, Ni2+ AND Cd2+ BY MICELLE MEDIATED EXTRACTION IN FOOD AND WATER SAMPLES
(SOC CHILENA QUIMICA, 2016) Bisgin, Abdullah Taner; Surme, Yavuz; Ucan, Mustafa; Narin, Ibrahim
An effective extraction procedure based on the complexation of Cu2+, Cd2+, and Ni2+ with dithizone and extraction of these complexes by Tergitol NP-7 surfactant was developed. Micelle mediated extraction parameters such as pH, ligand and surfactant concentration, incubation time and temperature were investigated and optimized. Effects of external and internal interfering ions, linear dynamic range, detection and quantitation limits were examined and determined under optimal conditions. Detection limits were found as 0.5, 1.8 and 2.0 mg L-1 for Cu2+, Ni2+ and Cd2+, respectively. Linear dynamic range values were between 0.125-2, 0.125-2.5 and 0.05-1.4 mu g mL(-1) for Cu2+, Ni2+ and Cd2+ ions, respectively. Applicability, accuracy and precision of the method were checked with standard reference materials and real sample analyses by analyte addition technique. Finally, optimized method was applied to determine Cu2+, Ni2+ and Cd2+ contents of standard reference materials, mushrooms and water samples. Quantitative and accurate results were obtained from the analysis of standard reference materials and real samples.
Simultaneous Preconcentration and Determination of Rhodamine B and Brilliant Blue
(Springer Int Publ Ag, 2020) Bisgin, Abdullah Taner; Surme, Yavuz; Ucan, Mustafa; Narin, Ibrahim
A simultaneous solid-phase preconcentration and spectrophotometric determination method based on adsorption of rhodamine B (RB) and Brilliant Blue FCF (BB) synthetic dyes onto Chromosorb 108 resin was developed. Solution pH, sample, eluent flow rates and eluent type were optimized. RB and BB concentrations were determined at 556 and 630 nm, respectively. Matrix effects of interference components were examined. Preconcentration factors and detection limits of the dyes were calculated. Adsorption isotherms of method, surface micrographs and pH(zpc) of resin experiments were performed. Limit of detections of the method were determined 0.22 and 0.31 mu g L-1 for RB and BB, respectively. The method was successfully applied to determine RB and BB in industrial, foodstuff, cosmetics and environmental water samples. RB contents were found between 2.11 and 5.89 mu g mL(-1) for liquid samples and 17.55 and 370 mu g g(-1) for solid samples. BB concentrations in investigated solid samples were between 3.00 and 53.38 mu g g(-1). BB contents of liquid samples were determined between 1.57 and 9.66 mu g mL(-1). In order to test applicability of the method, analyte addition/recovery technique was also used. Quantitative recovery values ranging from 95 to 103% were obtained from the analyte addition/recovery tests.
Simultaneous spectrophotometric determination and column solid-phase extraction of two Lanaset textile dyes in environmental water samples
(ELSEVIER SCIENCE INC, 2016) Bisgin, Abdullah Taner; Surme, Yavuz; Ucan, Mustafa; Narin, Ibrahim
A solid-phase extraction method, based on the adsorption onto Diaion HP-20 resin, was developed for simultaneous spectrophotometric determination of Lanaset Blue 2R and Lanaset Yellow 28 dyes which are most together hazardous textile dyes in wastewater. Concentrations of the dyes were determined using UV-visible spectrophotometer at 625 and 438 nm for LB-2R and LY-28, respectively. The developed method was also applied to water samples. In dying process water, 572 +/- 15 mu g/mL and 396 +/- 6 mu g/mL of LB-2R and LY-28 dyes were determined. In addition, adsorption isotherms of the method, point of zero charge and surface micrographs of the resin were investigated. (C) 2016 The Korean Society of Industrial and Engineering Chemistry. Published by Elsevier B.V. All rights reserved.
SP70-alpha-benzoin oxime chelating resin for preconcentration-separation of Pb(II), Cd(II), Co(II) and Cr(III) in environmental samples
(ELSEVIER SCIENCE BV, 2007) Narin, Ibrahim; Surme, Yavuz; Bercin, Erdogan; Soylak, Mustafa
In the presented work, a-benzoin oxime immobilized SP70 chelating resin was synthesized for separation and preconcentration of Pb(II), Cd(II), Co(II) and Cr(III). The optimization procedure for analytical parameters including pH, eluent type, flow rate, etc. was examined in order to gain quantitative recoveries of analyte ions. The effects of foreign ions on the recoveries of studied metal ions were also investigated. The detection limits Q(T) were found to be 16.0, 4.2, 1.3, 2.4 mu g L-1 for Pb, Cd, Co and Cr, respectively. The preconcentration factor was 75 for Ph, 100 for Cd, Co and Cr. The optimized method was validated with certified reference materials and successfully applied to the waters, crops and pharmaceutical samples with good results (recoveries greater than 95%, R.S.D. lower than 10%). (c) 2006 Elsevier B.V. All rights reserved.
Speciation of Cr(III) and Cr(VI) in environmental samples by solid phase extraction on Ambersorb 563 resin
(ELSEVIER SCIENCE BV, 2006) Narin, Ibrahim; Surme, Yavuz; Soylak, Mustafa; Dogan, Mehmet
A simple and sensitive method for the speciation, separation and preconcentration of Cr(VI) and Cr(III) in natural water, soil and sediment samples was developed. Cr(VI) has been separated from Cr(III) and preconcentrated as Cr(III)-diphenylcarbazone complex by using Ambersorb 563 resin and determined by spectrophotometric method at 540 nm. Effect of analytical parameters such as sulfuric acid concentration, ligand volume, type of elution solution, sample volume, amount of resin and foreign ions were investigated. The presented procedure was successfully applied for the chromium speciation in various environmental samples with successfully results. (c) 2005 Elsevier B.V. All rights reserved.
STUDIES ON THE HEAVY METAL REMOVAL EFFICIENCY AND ANTIBACTERIAL ACTIVITY OF 2-(DIPHENYLPHOSPHINO)AMINOPYRIDINE
(Soc Chemists Technologists Madeconia, 2018) Sarioz, Ozlem; Malgac, Burcu; Surme, Yavuz; Ilk, Sedef; Karaarslan, Muhsin
The solvent extraction of metal picrates such as Ni2+, Cu2+, Co2+, Pb2+ and Cd2+ from the aqueous to the organic phase was studied using 2-(diphenylphosphino)aminopyridine (Ph(2)PNHpy). The effects of parameters including the pH of the aqueous phase and the ligand solution volume were investigated to determine the extraction ability of the ligand for metal ions. The results showed that the extraction percentages of metal ions were high at low pH values. The antibacterial activity of the aminophosphine was also screened against Escherichia coli (E. coli) ATCC 25922, Staphylococcus aureus (S. aureus) ATCC 25923, Pseudomonas syringae pv. tomato (P. syringae) DC300, Salmonella enterica serotype Typhmurium (S. typhmurium) SL 1344 and Streptococcus mutans (S. mutans) ATCC 25175. From the studies of antibacterial activity, it was observed that the ligand exhibited a potent inhibitory effect against all Gram-negative and Gram-positive bacteria with a diameter of inhibition zone ranging from 3.86 to 18.10 mm. The aminophosphine ligand (Ph(2)PNHpy) should be considered as a suitable bio-active molecule for antimicrobial material design and next-generation, non-toxic drug fabrication. The Ph(2)PNHpy obtained may have the potential for use as an antimicrobial additive for bioengineering applications.
Synthesis and characterization of triethylammonium 2-(diphenylphosphinoamino)-5-methylbenzenesulfonate and use of it as a new complexing agent in solvent extraction of Ni (II) ions from water
(TAYLOR & FRANCIS INC, 2013) Sarioz, Ozlem; Surme, Yavuz; Muradoglu, Vefa; Malgac, Burcu
Triethylammonium 2-(diphenylphosphinoamino)-5-methylbenzenesulfonate (2) has been synthesized by treating Ph2PCl with 4-aminotoluene-3-sulfonic acid. The new compound was characterized by IR, H-1- and P-31-NMR, and elemental analysis. Liquid-liquid extraction of Ni (II) ions using synthesized aminophosphine derivative as new extractants was studied. The influence of critical parameters on the extraction properties of aminophosphine derivative such as solution pH and ligand mass were investigated. The liquid-liquid extraction ability of newly synthesized compound has also been compared another aminophosphine derivative (1). UV-vis spectrophotometry used to determine the liquid/liquid extraction efficiencies of Ni (II) metal ions at various conditions. Both of the extractant was found to be efficient for extraction of Ni (II) metal ions with recoveries of 84.8 and 81.5% for ligands 1 and 2 respectively.
Synthesis and characterization of water-soluble oligosalicylaldehyde-sulfanilic acid and its Cu(II), Co(II), Pb(II) complexes
(JOHN WILEY & SONS INC, 2008) Turac, Ersen; Surme, Yavuz; Sahmetlioglu, Ertugrul; Varol, Ramazan; Narin, Ibrahim; Toppare, Levent
This work presents the synthesis and characterization of a new water-soluble oligophenol derivative, 4-(2-hydroxybenzylideneamino)benzenesulfanic acid (OSAL-SA) and its metal complexes. The chemical structure of the water-soluble polymer was characterized by nuclear magnetic resonance (H-1 NMR) and Fourier transform infrared (FTIR) spectroscopies and thermogravimetric analyses (TGAs). Pb(II), Cu(II), Co(II) complexes of the polymer were also synthesized in methanol. Characterizations of water insoluble polymer-metal complexes were performed by FTIR, flame atomic absorption spectroscopy, and TGA. he conductivity measurements of OSAL-SA and polymer-metal complexes were carried out by the four-probe technique. (c) 2008 Wiley Periodicals, Inc.
Systematic corrosion investigation of various Cu-Sn alloys electrodeposited on mild steel in acidic solution: Dependence of alloy composition
(ELSEVIER SCIENCE SA, 2009) Surme, Yavuz; Gurten, A. Ali; Bayol, Emel; Ersoy, Ersay
Copper-tin alloy films were galvanostatically electrodeposited on the mild steel (MS) by combining the different amount of Cu and Sri electrolytes at a constant temperature (55 degrees C) and pH (3.5). Alloy films were characterized by using the energy dispersive X-ray analysis (EDX), scanning electron microscopy (SEM), X-ray diffraction (XRD) and micrographing techniques. Corrosion behaviours were evaluated with electrochemical impedance spectrometry (EIS) and electrochemical polarization measurements Time gradient of electrolysis process was adjusted to obtain same thickness of investigated alloys on MS. The systematic corrosion investigation of various Cu(x)-Sn(100-x) (x = 0-100) alloy depositions on MS substrate were carried out in 0.1 M sulphuric acid medium. Results indicate that the corrosion resistance of the alloy coatings depended on the alloy composition, and the corrosion resistance increased at Cu-Sn alloy deposits in proportion to Sri ratio. (C) 2009 Elsevier B.V All rights reserved.

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