New synthetic material removing heavy metals from aqueous solutions and wastewater

Houari, Benayed; Louhibi, Samira; Tizaoui, Khadidja; Boukli-Hacene, Leila; Benguella, Belkacem; Roisnel, Thierry; Dorcet, Vincent

doi:10.1016/j.arabjc.2016.11.010

Cited by 22 publications

(10 citation statements)

References 27 publications

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“…Houari, et al [18] reported that the removal percentage for Cd(II), Ni(II), Pb(II) and Cu(II) ions were more than 97%, this results was similar to the percentage of WTP in our work.…”

Section: Heavy Metals Removal Percentage During Seasonssupporting

confidence: 91%

“…L -1 . this mean that despite treatment processes but still in high level which impact on water environment causing (death of aquatic life, algal blooms, habitat destruction from sedimentation, debris) especially water environment of Gediz river because the effluent discharged in it and with continuous of this operation lead to Aegean Sea impact by the heavy metal high content effluent stream, Irrigation with this effluent also impact soil and plants this problem also reported by Houari, et al [18].…”

Section: Concentration Of Heavy Metals In Effluentmentioning

confidence: 79%

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2019

Journal of Asian Scientific Research

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“…Houari, et al [18] reported that the removal percentage for Cd(II), Ni(II), Pb(II) and Cu(II) ions were more than 97%, this results was similar to the percentage of WTP in our work.…”

Section: Heavy Metals Removal Percentage During Seasonssupporting

confidence: 91%

Section: Concentration Of Heavy Metals In Effluentmentioning

confidence: 79%

Untitled

2019

Journal of Asian Scientific Research

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“…Thiosemicarbazones are also reported to have various analytical applications [25,26]. They are used as corrosion inhibitors [27] and as heavy metals in removal wastewater [28].…”

Section: Introductionmentioning

confidence: 99%

New thiosemicarbazone Schiff base ligands: Synthesis, characterization, catecholase study and hemolytic activity

Nehar

Mahboub

Louhibi

et al. 2020

Journal of Molecular Structure

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Two novel thiosemicarbazones ligands have been synthesized and characterized by FT-IR, ESI-MS, 1 H NMR, and also by single-crystal X-ray diffraction for L1. The crystal structure shows that L1 molecules are planar and are connected via N-H-S and O-H-S interactions. The catecholase activity of is situ copper and cobalt complexes of this ligands has been investigated against 3,5-di-tert-butylcatechol. The progress of the oxidation reactions was closely monitored over time following the strong peak of 3,5-DTBC using UV-Vis. Oxidation rates were determined from the initial slope of absorbance vs. time plots, then analyzed by Michaelis-Menten equations. Catechol oxidation reactions were realized using different concentrations of copper and cobalt acetate and ligands (L/Cu: 1/1, 1/2, 2/1). The results show that all complexes were able to catalyze the oxidation of 3,5-DTBC. Acetate complexes have the highest activity. CuL1 and CoL1 complexes act as a catalyst and inhibitor. While copper and cobalt complexes obtained from ligand L2 illustrate concentration-independent oxidation activation. The hemolysis study performed by L1 increases as a function of its concentration. However, ligand L2 has no hemolytic effect.

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“…Schiff base metal complexes are used as pigments in the dye industry, and they show anticancer activity . Polymer–metal complexes are used to remove metal ions from wastewaters and to improve the thermal properties of polymers . Plastic may be made electrically conductive after some modifications, and this can be achieved by complexation of polymers .…”

Section: Introductionmentioning

confidence: 99%

Synthesis of Schiff base–containing benzoxazine derivatives

Tımur

Nur

Sıkar

2019

J of Applied Polymer Sci

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The excellent chemical and physical properties of benzoxazine resins and the functionality of Schiff bases were combined in one compound's structure, creating newly designed benzoxazine derivatives that can form complexes with metals. The new type of benzoxazine monomer was synthesized via the ring-closure reaction of formaldehyde, aniline, and three newly designed Schiff bases. The presence of the Schiff base in the molecular structure of these novel benzoxazine monomers enables them to trap metals as the functional compounds, like Cu, from a solution. Thermally initiated polymerization occurs at a lower temperature by the formation of intermolecular and intramolecular hydrogen bonds between imine, oxazine, Schiff base hydroxyl groups, and the newly generated hydroxyl groups. The thermal behavior of the bisbenzoxazine monomers was investigated with Fourier transform infrared spectroscopy (FTIR), thermogravimetric analysis (TGA), and differential scanning calorimetry, and then they were cured at 120, 180, and 230 C. According to the magnetic susceptibility, FTIR, scanning electron microscopy with energy dispersive X-ray spectroscopy, TGA, and microwave plasma atomic emission spectroscopy results, it is shown that Cu(II) complexes of the compounds were also succesfully synthesized, and they proved to be successful in catching metal. This is due to the functionality of Schiff bases forming the metal complexation in the compounds. The poly(bisbenzoxazine)s also showed high limiting oxygen index (31-37), low ring-opening temperature (150-190 C), high char yield (35%-49%), and excellent thermal stability, due to the highly crosslinked nature of the polymers.

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New synthetic material removing heavy metals from aqueous solutions and wastewater

Cited by 22 publications

References 27 publications

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New thiosemicarbazone Schiff base ligands: Synthesis, characterization, catecholase study and hemolytic activity

Synthesis of Schiff base–containing benzoxazine derivatives

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