Synthesis of Novel Schiff Base Cobalt (II) and Iron (III) Complexes as Cathode Catalysts for Microbial Fuel Cell Applications

Şen, Pınar; Akagunduz, Dilan; Aghdam, Araz Sheibani; Cebeci, Fevzi Çakmak; Nyokong, Tebello; Çatal, Tunç

doi:10.1007/s10904-019-01286-x

Cited by 14 publications

(7 citation statements)

References 47 publications

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“…The CN stretching vibration bands of the Cu (II), Co (II), and Ni (II) complexes shifted to more lower wavenumbers, indicating that the metal (II) ions have coordinated with the oxime nitrogen atoms. [ 44 ] Next, a C–O stretching vibration band was observed at approximately 1,256 cm −1 in the ligand H 2 L. [ 45,46 ] But C–O stretching vibration bands were observed at approximately 1,173, 1,215, and 1,217 cm −1 in the Cu (II), Co (II), and Ni (II) complexes, respectively. Compared with the C–O stretching vibration band of the ligand H 2 L, the C–O stretching vibration bands of the Cu (II), Co (II), and Ni (II) complexes shifted to lower wavenumbers, indicating that the metal (II) ions have coordinated with the phenol oxygen atoms.…”

Section: Resultsmentioning

confidence: 99%

Investigation of mononuclear, dinuclear, and trinuclear transition metal (II) complexes derived from an asymmetric Salamo‐based ligand possessing three different coordination modes

Bian

Wang

et al. 2020

Applied Organom Chemis

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A new asymmetric Salamo-based ligand H 2 L was synthesized using 3-tert-butyl-salicylaldehyde and 6-methoxy-2-[O-(1-ethyloxyamide)]-oxime-1-phenol. By adjusting the ratio of the ligand H 2 L and Cu (II), Co (II), and Ni (II) ions, mononuclear, dinuclear, and trinuclear transition metal (II) complexes, [Cu(L)], [{Co(L)} 2 ], and [{Ni(L)(CH 3 COO)(CH 3 CH 2 OH)} 2 Ni] with the ligand H 2 L possessing completely different coordination modes were obtained, respectively. The optical spectra of ligand H 2 L and its Cu (II), Co (II) and Ni (II) complexes were investigated. The Cu (II) complex is a mononuclear structure, and the Cu (II) atom is tetracoordinated to form a planar quadrilateral structure. The Co (II) complex is dinuclear, and the two Co (II) atoms are pentacoordinated and have coordination geometries of distorted triangular bipyramid. The Ni (II) complex is a trinuclear structure, and the terminal and central Ni (II) atoms are all hexacoordinated, forming distorted octahedral geometries. Furthermore, optical properties including UV-Vis, IR, and fluorescence of the Cu (II), Co (II), and Ni (II) complexes were investigated. Finally, the antibacterial activities of the Cu (II), Co (II), and Ni (II) complexes were explored. According to the experimental results, the inhibitory effect was found to be enhanced with increasing concentrations of the Cu (II), Co (II), and Ni (II) complexes.

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Section: Resultsmentioning

confidence: 99%

Investigation of mononuclear, dinuclear, and trinuclear transition metal (II) complexes derived from an asymmetric Salamo‐based ligand possessing three different coordination modes

Bian

Wang

et al. 2020

Applied Organom Chemis

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“…However, bound water in molecules in the synthesized complex molecules can be seen in FTIR spectra and mass spectra (Fig. 1) [28,33,34].…”

Section: Structural Characterizationmentioning

confidence: 99%

“…The decrease in the % transmittance values of these peaks was interpreted as the N atom coordinated with the metal atoms (Fig. 1) [28,33,34].…”

Section: Structural Characterizationmentioning

confidence: 99%

Investigation of The Effects of Diaminopyridine and o-Vanillin Derivative Schiff Base Complexes of Mn(II), Mn(III), Co(II) and Zn(II) Metals on The Oxidative Bleaching Performance of H2O2

Uğur¹,

Tuna

2021

Sakarya University Journal of Science

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Catalytic applications are widely used in industrial and individual applications today due to their many advantages, especially the energy and time they provide. For this purpose, many coordination compounds have been synthesized, and their catalytic performances have been investigated in recent years. In this study, the Schiff base ligand, (N,N'-bis(2-hydroxy-3methoxyphenylmethylidene)-2,6-pyridinediamine, BHMP), was synthesized with 2,6diaminopyridine with o-vanillin. Mn(II), Mn(III), Co(II), Zn(II) complexes were obtained with the synthesized ligand. Spectroscopic methods such as FT-IR, 1 H-NMR, UV-vis, Mass, and melting point determination methods were used for the structure elucidation of the synthesized compounds. The performances of the obtained complexes as bleach catalysts, which are an important application area of Schiff base complexes, were investigated. According to the bleaching measurement results, the highest catalytic effect on the bleaching performance of H2O2 in pH 10.5 buffer at 25 °C under homogeneous conditions was obtained with Co(II) complex. It was understood that this complex was followed by Mn(II), Mn(III), and Zn(II) complexes, respectively.

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“…[1][2][3] The removal of environmental contaminants can be bioremediated, and simultaneously energy can be generated in microbial electrochemical cells. [4][5][6] Microbial electrolysis cells (MECs) are biotechnological tools that have the capability to use microorganisms as biocatalysts to obtain hydrogen energy from chemical energy stored in organic substances including lignocellulosic materials. 1,7,8 MECs open a new gate to provide hydrogen energy in the world.…”

Section: Introductionmentioning

confidence: 99%

Enhanced hydrogen production by mevastatin in microbial electrolysis cells

et al. 2021

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Mevastatin is one of the common pharmaceuticals found in wastewaters, and its biodegradation is still an environmental problem due to its recalcitrant properties. Although various biological, chemical and physical methods have been investigated for the removal of mevastin, microbial electrolysis cells (MECs) have not been examined, yet. MECs are new generation biotechnological tools used in hydrogen energy production. In this study, the effects of mevastatin on hydrogen production in MECs were investigated for the first time. MECs produced hydrogen gas in the presence of mevastatin, and an increase in hydrogen production was observed. Over 90% of the mevastatin were removed in MECs. These results also showed that the fermentation process associated with carbon dioxide production can favor hydrogen production with mevastatin. In conclusion, the efficiency of hydrogen production in microbial cells can be increased by the use of wastewaters contaminated with mevastatin.

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Synthesis of Novel Schiff Base Cobalt (II) and Iron (III) Complexes as Cathode Catalysts for Microbial Fuel Cell Applications

Cited by 14 publications

References 47 publications

Investigation of mononuclear, dinuclear, and trinuclear transition metal (II) complexes derived from an asymmetric Salamo‐based ligand possessing three different coordination modes

Investigation of mononuclear, dinuclear, and trinuclear transition metal (II) complexes derived from an asymmetric Salamo‐based ligand possessing three different coordination modes

Investigation of The Effects of Diaminopyridine and o-Vanillin Derivative Schiff Base Complexes of Mn(II), Mn(III), Co(II) and Zn(II) Metals on The Oxidative Bleaching Performance of H2O2

Enhanced hydrogen production by mevastatin in microbial electrolysis cells

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