A novel thiourea derivative for preconcentration of copper(II), nickel(II), cadmium(II), lead(II) and iron(II) from seawater samples for Flame Atomic Absorption Spectrophotometry

Uçak, Şengül Şanlier; Aydın, Adnan

doi:10.1016/j.marpolbul.2022.113787

Cited by 10 publications

(4 citation statements)

References 85 publications

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“…When the pH increased, the ability of H + to combine adsorption sites decreased, while positively charged strontium ions began to occupy adsorption sites on the surface of the adsorbent and therefore the adsorption capacity increased [69]. However, other studies showed that when the pH increased further (>9), due to the presence of a large number of anions in water, metal ions are surrounded by anions, forming negatively charged atomic groups that reduce the adsorption effect of strontium ions [70,71].…”

Section: Effect Of Phmentioning

confidence: 99%

Removal of Sr(II) in Aqueous Solutions Using Magnetic Crayfish Shell Biochar

Lü

Feng

Otero³

et al. 2023

Separations

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The cooling water of nuclear power plants and discarded crayfish shells (CS), both containing Sr(II), are waste resources that cause environmental pollution and endanger human health. In this study, magnetic biochar produced by crayfish shells (mag@CSBC) was used as an adsorbent to remove radionuclide Sr(II) in an aqueous solution and under irradiation conditions. Scanning electron microscopy, X-ray diffraction analysis, Fourier-transform infrared spectroscopy and vibration sample magnetometer analysis were used to characterize mag@CSBC. In addition, an isothermal adsorption experiment conducted under irradiation conditions determined that the maximum adsorption capacity of mag@CSBC was 21.902 mg/g, which was 1.896 mg/g higher than that from experiments conducted under conditions without irradiation and more suitable for the Freundlich isotherm model. The kinetic experiment proved that irradiation could improve the adsorption cap acity of mag@CSBC and reduce the adsorption equilibrium time. At the same time, the experiment further proved that, under irradiated conditions, the adsorption rate of mag@CSBC can reach more than 90%, and the adsorption capacity is the highest when the pH is 8 and the reaction process is exothermic. Competitive adsorption with Na(I) has a high selectivity and strong recyclability. Finally, the mechanism of Sr(II) adsorption by mag@CSBC under irradiation was studied. In conclusion, mag@CSBC, as a low-cost, easy-to-synthesize, environmentally friendly and easy-to-recycle adsorbent, can be applied in batches for the removal of Sr(II) in aqueous solutions. In particular, the concept of using irradiation technology to optimize adsorption behavior serves as an inspiration for future research.

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Section: Effect Of Phmentioning

confidence: 99%

Removal of Sr(II) in Aqueous Solutions Using Magnetic Crayfish Shell Biochar

Lü

Feng

Otero³

et al. 2023

Separations

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“…Thiourea derivatives can be synthesized with different methods [1,2] and uses in different applications such as the extraction of certain transition metals in acidic medium [3][4][5]. Multiple biological activities such as antibacterial [5,6] antifungal [6] antituberculosis [7] anticancer [8] antiviral [9] anticonvulsant [10] antioxidant [11] insecticidal [12] and herbicidal [13,14].…”

Section: Introductionmentioning

confidence: 99%

Syntheses and X-ray Structure of N-(Benzothiazol-2-yl)-3-chlorobenzamide

Sow,

Odame,

Diouf

et al. 2024

Int. Res. J. Pure Appl. Chem.

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The reaction of 3-chloro-benzoyl chloride and 2-aminobenzothiazole in the presence of potassium thiocyanate yielded a yellowish solid C15H10ClN3OS2 (1). Reaction of 1 with cobalt chloride yield a yellowish solid C14H11ClN2O2S (2) which gives crystal suitable for X-ray analyses. The compounds were characterized by elemental analyses FTIR spectroscopy and melting point measurement. Compound 2 crystallizes in the triclinic space group Pī with the following parameters: a = 7.0299(2) Å b = 7.0466(2) Å c = 14.5490(2) Å a = 103.844(3)° β = 92.929(2)° g = 107.291(3) V = 662.33(4) Å3 Z= 2 R1 = 0.030 wR2 = 0.034. The asymmetric unit of (2) consists of one molecule in which the 3-chloro phenyl moiety and the benzothiazole-2-yl moiety form a dihedral angle of 6.417(4)°. An intramolecular O—H···O hydrogen bond occurs. In the crystal O—H···N and N—H···O hydrogen bonds link the molecules forming layers parallel to the ac plane.

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“…Batteries, alloys, coatings (electroplating), solar cells, plastic stabilizers, and pigments are some common industrial uses for cadmium today. To determine it, a variety of methods are used, including inductively coupled plasma-mass spectrometry (ICP-MS), 5 anodic stripping voltammetry, 6 atomic absorption spectroscopy (AAS), 7,8 X-ray fluorescence, 9 ICP-AES, glassy carbon electrodes, 10 and cathodic stripping voltammetry. 11 These methods are difficult to use for the analysis of Cd (II) in several samples because they are complex, time-consuming, and expensive and require extensive infrastructure support and knowledge.…”

Section: Introductionmentioning

confidence: 99%

Synthesis of a new Cd (II) complex as ionophores and its application in construction of a highly selective and sensitive cadmium (II) sensor in petroleum water samples

Mohammed

Fetoh

Youssef

et al. 2023

Applied Organom Chemis

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The measurement of Cd (II) ions in various matrices requires the development of sensors that are selective, sensitive, and simple to produce. The cadmium complex of a ligand prepared by the reaction of 2‐pyridinecarbohydrazide with sodium 3‐formyl‐4‐hydroxybenzenesulfonate, [Cd (NaPH)(H2O)].H2O, was synthesized, analyzed by elemental analysis, and structurally elucidated using various spectroscopic techniques. The infrared spectrum of Cd (II) complex suggests a bi‐negative tri‐dentate ONO behavior for the ligand via deprotonated form of both the enolic oxygen atom (C‐O−) and the hydroxyl group of phenolic ring in addition to the azomethine group. The thermal behavior of this complex was revealed using TGA analysis. Applying Coast–Redfern and Horowitz–Metzger equations, we were able to calculate the kinetic and thermodynamic parameters to support the proposed fragmentation experiment for the Cd (II) complex. Cyclic voltammetry measurement was measured to estimate the electrochemical behavior of the Cd (II) ions as well as the impact of adding various NaH2PH ligand concentrations. The biological applications of [Cd (NaPH)(H2O)].H2O complex were assessed as antioxidant, anticancer, and antimicrobial. Based on the Cd (II) complex, we were able to modify Cd (II) ions carbon paste electrode (modified carbon paste electrode, MCPE) as a Cd (II) selective modifier. The created electrode displays a Nernstian slope in the linear range of 0.0001 to 10 mmol/L of 29.16 ± 0.03 mV decade−1, a quick reaction time of 6 s, and pH independence from 3–7. The suggested MCPE demonstrated strong selectivity to Cd (II) ions relative to many other cations and displayed negligible change in the slope or operating range if the experiment was achieved in a partially non‐aqueous solution. This fabricated MCPE was used to determine Cd (II) ions in diverse water samples.

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A novel thiourea derivative for preconcentration of copper(II), nickel(II), cadmium(II), lead(II) and iron(II) from seawater samples for Flame Atomic Absorption Spectrophotometry

Cited by 10 publications

References 85 publications

Removal of Sr(II) in Aqueous Solutions Using Magnetic Crayfish Shell Biochar

Removal of Sr(II) in Aqueous Solutions Using Magnetic Crayfish Shell Biochar

Syntheses and X-ray Structure of N-(Benzothiazol-2-yl)-3-chlorobenzamide

Synthesis of a new Cd (II) complex as ionophores and its application in construction of a highly selective and sensitive cadmium (II) sensor in petroleum water samples

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