٠ [Chemical Storekeeper]

Mar 11, 2012 - Oct 18, 2017

٠ [Examination Committee Member]

Sep 5, 2018 - Sep 1, 2020

٠ [Head of Unit Operations Branch]

Sep 1, 2019 - Aug 2, 2020

Removal Of Mercury And Lead Metals From Their Aqueous Solution By Using New Polymers Of Triazole Derivatives

Oct 22, 2024

Journal Afr. J. Biomed. Res.

DOI DOI: https://doi.org/10.53555/AJBR.v27i3S.2911

Issue 1119 - 5096

Volume 27

Mercury and lead have been removed from water by using synthesized polymers of triazole derivatives, the process consists of many reaction steps beginning with terephthalic acid to form the ester of terephthalate, followed by the formation of acid hydrazide which undergoes further reaction to form 1,3,4-oxadiazole using carbon disulfide in KOH medium, the formed oxadiazole was refluxed with hydrazine hydrate to produce the monomer of triazole derivative. Two polymers were synthesized by polycondensation with dichloromethane (polymer I) and 1,4- dibromo butane (polymer II). The structural formula of the polymers has been proved by the elemental Analysis (CHNS), FTIR spectrum, and thermal analysis. The effect of many parameters on the loading capacity of the two polymers and their ability to remove mercury and lead from water have been studied, in which 0.05 g of the dried polymers was treated with a standard solution of metal ion (100 – 400) ppm at a pH range of (2 – 6) for mercury and (2-5) for lead, the concentration of mercury and lead were of pre- and post- determined using atomic absorption device. The effect of treated time has also been studied in the range of 1- 4 hrs. The results show that mercury has been efficiently removed from the solution of pH 2 by both polymers, and it is required for two hours at 50°C, lead was removed at pH 5 and needs 90 minutes at 50°C. The extracted elements were easily recovered from an acidic 3M HCl solution.

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Synthesis of New polymers of Triazole Derivatives

Jun 30, 2024

Journal NTU Journal of Pure Sceinces

publisher Northern Technical University

DOI https://doi.org/10.56286/ntujps.v3i3

Issue 2789 - 1089

Volume 3

Thiatriazole is an important monomer, whereby it has two types of functional groups: amine and thiol. Within the frame of this work, the triazole monomer has been prepared from its oxadiazole. Two types of polymers were prepared from this monomer via condensation with terephthaldehyde and succinyl chloride, whereby the binding units of the resulting polymers are differs, azomethine and amide respectively. Infrared spectroscopy and elemental analysis were used to identify the polymers. DTA, TGA and DSC analysis indicate the thermal history of the polymers. It was shown that polymer (1) was more flexible than polymer (2) due to the lower Tg value due to the presence of the azomethene group. The Tg are (138oC) and (190oC) respectively. Also the DTA, and TGA indicate that polymer (2) has higher thermal stability than polymer 1 due to the presence of the amide group.

Removal of Pb(II) ions from Tigris river wastewater in Mosul city by using modified commercial activated carbon

Jul 2, 2021

Journal Egyptian Journal of Chemistry

DOI DOI: 10.21608/EJCHEM.2021.77656.3790

Issue 12

Volume Vol. 64

Background: The water pollution of Tigris River is considered the main increasing problem in Mosul city, Iraq. The divalent lead ions are direct or indirect toxic heavy metals ions contaminant confirmed as non-biodegradables and have a long half-life due to corrosions and sedimentation of these metal ions in storm sewer trunk mains, the critical issue is eliminating these heavy metal ions by treating wastewater via commercial activated carbon (CAC), which is the most effective used adsorbent in the adsorption process. Aim: This study aimed to eliminate divalent lead ions by treating wastewater using commercial activated carbon (CAC). Methodology: The surface of commercial activated carbon (CAC) was modified by using concentrated nitric acid. For this purpose, nitric acid in different concentrations (2, 4, 6, 8, and 10 M) and different temperatures (25, 50, 75, and 100( °C were used. Results and Discussion: The best results were observed at 50 °C in which it was used as a standard temperature. A 10 M nitric acid concentration was noticed as the best one. It could be observed that the high pore volume observed in modified activated carbon samples (estimated as the highest adsorption capacity towards iodine, using iodine number determination method) was (707.2 mg/g). This result was supported by methylene blue (190 mg/g). The modified activated carbon (MAC) at the chosen acid concentration was a useful filter to remove the methylene blue organic dye. The modified activated carbon (MAC) was used to adsorbed Pb2+ ions from the Mosul Tigris river wastewaters, the percentage of mean changed activated carbon (MAC) surface adsorption removal efficiency of divalent lead ions were increased by 219% compared with the commercial activated carbon (CAC) Conclusions: : Using the methods for iodine number, ash content, methylene blue and density determinations, it was proven that the excellent sorption properties, strong microporous structure, large pore volume, surface of the acidic character, and porosity are the most critical chemical characterization parameters

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Preparation of New Complexes of Fe(II), Co(II), Ni(II) and Cu(II) with Mixed Ligands of Ciprofloxacin or Levofloxacin with Eugenol and Study of Their Chemical and Physical Properties

Apr 2, 2021

Journal Egyptian Journal of Chemistry

DOI DOI:10.21608/ejchem.2021.63144.3352

Issue 8

Volume 64

Eight new mixed ligands metal complexes have been prepared by the reaction of Fe(II), Co(II), Ni(II) and Cu(II) with (1:1:1 molar ratio) of ciprofloxacin - eugenol or levofloxacin - eugenol mixed ligands in alkaline medium. The coordination of the mixed ligands toward metal ions has been anticipated in the light of elemental analysis, molar conductance, spectral infrared (IR), ultraviolet-visible (UV-Vis) and magnetic measurements were bidentate ligands. Electronic and magnetic data suggested the octahedral configuration for all these new complexes. The molar conductance data for the metal complexes show non￾electrolytic behaviour in DMF solvent and non-electrolytic properties, also they were no conducting electrical current. The biological activity of the prepared complexes was studied with positive and negative Gram-positive bacteria and good antibacterial results

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Preparation of New Complexes of Anticipated Biological Activities

Jan 5, 2018

Journal Iraqi National Journal of Chemistry

DOI DOI:10.21608/ejchem.2021.63144.3352

Issue 1

Volume 18

Novel complexes of biological important activity were prepared by coordination of Mn(II) or Cr(II) metals with the ligand of Aspirin and Paracetamole mixture L = Aspirine(Asp) and Paracetamole(Parac) in 1:1:1 for the former and 1:1:2 molar ratio for the later. The metal ions were tetrahedral and octahedral bonded to the ligand in the complexes respectively. Aspirin coordinate through the carbonyl oxygen of the carboxyl and the ester groups, while paracetamol coordinate through the oxygen of the hydroxyl and the amide groups Complexes have been synthesized by conventional direct reaction in neutral medium and the products have the general formula [M(Asp/ Par]Cl2and [M2(Asp)2/ (Par)2]Cl2 respectively. Physical measurements including IR and UV / Visible spectra, CHN analysis and molar conductivity measurements showed these geometries around the metals. The geometry (three dimensional structure) of complex (I and V) as representative of these complexes at minimized energy was established by chem.3D Ultra; molecular modeling and analysis confirmed the suggested structure tetrahedral and octahedral.