Synthesis and characterization of novel nano-chitosan Schiff base and use of lead (II) sensor

Koçak, Nuriye; Şahi̇n, Mustafa; Küçükkolbaşı, Semahat; Erdoğan, Zehra Özden

doi:10.1016/j.ijbiomac.2012.09.003

Cited by 47 publications

(11 citation statements)

References 29 publications

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“…Since the beginning of this century, the interest in materials at the nanoscale has been steadily increasing based on the fact that the quantum size of nanomaterials triggers new physical, electronic, and magnetic properties. Thus the synthesis and characterization of nanostructures with different particle sizes and morphologies are important both from the viewpoint of basic science as well as for technological applications . A few studies have been done on the synthesis of nanoparticles of Schiff base complexes and their application .…”

Section: Introductionmentioning

confidence: 99%

Kinetics of Thermal Decomposition and Kinetics of Substitution Reaction of Nano Uranyl Schiff Base Complexes

Asadi

Zeinali

Dušek

et al. 2014

Int. J. Chem. Kinet.

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This study focuses on the synthesis, characterization, and kinetics of substitution reaction of new uranyl Schiff base complexes prepared in a crystalline state as well as in a form of nanoparticles with sizes ranging between 35 and 60 nm. Preliminary Fourier transform infrared spectroscopy (FTIR) and thermogravimetric (TG) measurements indicated no difference between the two forms. The compounds were characterized by UV-vis, 1 H NMR, cyclic voltammetry, X-ray crystallography, FTIR, TG, and CHN analyses. X-ray crystallography revealed coordination of the uranyl by the tetradentate Schiff base ligand and one solvent molecule, resulting in seven-coordinated uranium. Cyclic voltammetry of the complexes in acetonitrile revealed the quasi-reversible redox reaction. The TG and analysis of Coats-Redfern plots revealed that the kinetics of thermal decomposition of the complexes is of the first order in all stages. The study of the kinetics and the mechanism of the exchange reaction of the coordinated solvent with tributylphosphine was performed by the spectrophotometric method. The second-order rate constants at four temperatures and the activation parameters revealed an associative mechanism for all corresponding complexes. Anticancer activity of the nano uranyl Schiff base complexes against cancer cell lines (Jurkat) was studied and determined by the MTT (3-[4,5-dimethylthiazol-2-yl]-2,5-diphenyl-tetrazoliumbromide) assay. C

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Section: Introductionmentioning

confidence: 99%

Kinetics of Thermal Decomposition and Kinetics of Substitution Reaction of Nano Uranyl Schiff Base Complexes

Asadi

Zeinali

Dušek

et al. 2014

Int. J. Chem. Kinet.

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“…The emergence of a peak at 1659 cm −1 indicates the C O in amide group [28]. The biosorbent showed a shift in the amino peak from 1595 cm −1 to 1591 cm −1 [29]. The appearance of peak at 1627 cm −1 is indicative of C N imine group of the glutaraldehyde crosslinked chitosan.…”

Section: Ftir and Sem-edax Analysismentioning

confidence: 96%

An indigenous Halomonas BVR1 strain immobilized in crosslinked chitosan for adsorption of lead and cadmium

Manasi

Rajesh

2015

International Journal of Biological Macromolecules

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“…At pH higher than 5.0, the decrease in the anodic peak current may be due to the hydrolysis of cations. 31…”

Section: 1 Effect Of Supporting Electrolyte and Phmentioning

confidence: 99%

“…(A.2), respectively, where δ is the standard deviation (8 replicate determinations of the blank signals) of blank and s is the slope of calibration curve. 31 (1)…”

Section: Analytical Characteristicsmentioning

confidence: 99%

Fabrication and Application of a New Modified Electrochemical Sensor Using Newly Synthesized Calixarene-Grafted Mwcnts for Simultaneous Determination of Cu(II) and Pb(II)

Küçükkolbaşı

Sayın²

2019

ACSi

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A rapid, simple, selective and highly sensitive simultaneous determination of Cu(II) and Pb(II) via newly fashioned 5,11,17,23-tetra-tert-butyl-25,27-dihydrazinamidecarbonylmethoxy-26,28-dihydroxycalix[4]arene-grafted multi-walled carbon nanotubes-modified carbon paste electrode (CNT-Calix/CPE) by differential pulse anodic stripping voltammetry (DPASV) has been introduced. It was observed that CNT-Calix/CPE exhibits higher selectivity and stability for Cu(II) and Pb(II). Different operational parameters such as pH, deposition potential/time, pulse amplitude (5, −1.0 V vs. Ag/AgCl, 300 s, 2 s, 0.05 V) were also optimized for calculation and statistical evaluation of linear range, detection limit and limit of quantification. Interference study shows that the electrode is highly selective for the simultaneous determination of Cu(II) and Pb(II). Standard addition method was used to apply CNT-Calix/CPE in waste water, plant leaves and soft drinks and it was found that the concentration of Cu(II) and Pb(II) were corresponding to standardized values.

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Synthesis and characterization of novel nano-chitosan Schiff base and use of lead (II) sensor

Cited by 47 publications

References 29 publications

Kinetics of Thermal Decomposition and Kinetics of Substitution Reaction of Nano Uranyl Schiff Base Complexes

Kinetics of Thermal Decomposition and Kinetics of Substitution Reaction of Nano Uranyl Schiff Base Complexes

An indigenous Halomonas BVR1 strain immobilized in crosslinked chitosan for adsorption of lead and cadmium

Fabrication and Application of a New Modified Electrochemical Sensor Using Newly Synthesized Calixarene-Grafted Mwcnts for Simultaneous Determination of Cu(II) and Pb(II)

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