Synthesis and Characterization of the Adducts of Bis(<i>O</i>-ethyldithiocarbonato)copper(II) with Substituted Pyridines

Kour, Gurpreet; Kour, Inderjeet; Sachar, Renu

doi:10.1155/2013/502856

“…Recently, the preparation of monomeric five-coordinate Cu-xanthates adducts with pyridine derivatives have been reported (Gurpreet, et al, 2013). The introduction of pyridyl moiety was to overcome the instability of the fourcoordinate Cu-xanthates complexes (Kour, et al, 2013). In this paper, we describe the synthesis and physical characterization of potassium diphenylmethyl xanthate ligand and its monomeric metal complexes with some of divalent transition metal ions (Fe II , Co II , Ni II , Cu II , Zn II , and Cd II ).…”

Section: Introductionmentioning

confidence: 99%

Synthesis and Characterization of Iron(II), Cobalt(II), Nickel(II), Copper(II), and Zinc(II) Complexes Using Diphenylmethyl Xanthate Ligand

Al-Fahdawi

¹

,

Alsalihi

²

2018

ARO

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Potassium diphenylmethyl xanthate and its monomeric complexes were synthesized at room temperature under inert gas and stirring condition. The ligand and its complexes of the general formula [M(L) 2 ] (where, M = Fe II , Co II , Ni II , Cu II , Zn II , and Cd II ) were characterized by spectroscopic methods (IR, UV-Vis, 1 H-, 13 C-, DEPT-, HQMC-, and COSY-NMR), elemental analysis, metal content, magnetic susceptibility measurement, and molar conductance. These studies revealed the formation of fourcoordinate complexes.

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Synthesis and Characterization of Novel β-CD-Xanthate and Its Application in the Treatment of Heavy Metal Containing Wastewater and Lignin Enriched Paper Industry Wastewater

Chaurasiya,

Pande,

Shankar

et al. 2023

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0

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Three grades of xanthates of β-cyclodextrin (β-CD) viz. β-CDX1 β-CDX2 and β-CDX3 have been synthesized by the rection of β-CD with CS2 in alkaline medium (NaOH), through xanthation process. The synthesized β-CDXs have been characterized by UV, FTIR, 1HNMR, DSC, ΔpHPZC and SEM analysis. Further, β-CDXs and raw β-CD has been used for the heavy metals removal (Cu2+ and Ni2+) and also lignin removal from lignin enriched paper industry wastewater (LEPIW). The maximum % removal of β-CD, β-CDX1, β-CDX2 and β-CDX3 have been found to be 73.6, 91.9, 93.4 & 95.8% for Cu2+ ion and 65.8, 88.6, 91.3 & 94.1% for Ni2+ ion at optimum adsorbent dosage 2.0 g/L, pH 6.5, initial concentration 1000 mg/L, temperature 45 oC for Cu2+ and 55 oC for Ni2+, and contact time: 80 min for Cu2+ and 100 min for Ni2+ ion respectively. While LEPIW treatment efficacy of 54, 77, 83 and 86% has been noticed (initial COD: 2.0 g/L, pH: 7, optimum temperature: 40°C at 80 min operating time) for β-CD, β-CDX1, β-CDX2 and β-CDX3 respectively. The calculated data fitted well with Langmuir isotherm model confirming the adsorption of Cu2+ & Ni2+ ions onto the β-CDXs adsorbent is monolayer. The rate of adsorption of heavy metals (Cu2+ and Ni2+) on the β-CDXs adsorbent has been controlled by kinetic model of Pseudo second order indicating the chemisorption. The optimal adsorption capacities of β-CD, β-CDX1, β-CDX2 and β-CDX3 has been found to be 357.14, 473.93, 510.20 & 534.75 mg/g for Cu2+ and 294.11, 384.61, 408.16 & 423.72 mg/g and for Ni2+ ions, respectively.

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Synthesis and Characterization of Novel β-CD-Xanthate and Its Application in the Treatment of Heavy Metal Containing Wastewater and Lignin Enriched Paper Industry Wastewater

Chaurasiya,

Pande,

Dey

et al. 2024

Preprint

0

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Three grades of xanthates of β-cyclodextrin (β-CD) viz. β-CDX1 β-CDX2 and β-CDX3 have been synthesized by the rection of β-CD with CS2 in alkaline medium (NaOH), through xanthation process. The synthesized β-CDXs have been characterized by UV, FTIR, 1HNMR, DSC, ΔpHPZC and SEM analysis. Further, β-CDXs and raw β-CD has been used for the heavy metals removal (Cu2+ and Ni2+) and also lignin removal from lignin enriched paper industry wastewater (LEPIW). The maximum % removal of β-CD, β-CDX1, β-CDX2 and β-CDX3 have been found to be 73.6, 91.9, 93.4 & 95.8% for Cu2+ ion and 65.8, 88.6, 91.3 & 94.1% for Ni2+ ion at optimum adsorbent dosage 2.0 g/L, pH 6.5, initial concentration 1000 mg/L, temperature 45 oC for Cu2+ and 55 oC for Ni2+, and contact time: 80 min for Cu2+ and 100 min for Ni2+ ion respectively. While LEPIW treatment efficacy of 54, 77, 83 and 86% has been noticed (initial COD: 2.0 g/L, pH: 7, optimum temperature: 40°C at 80 min operating time) for β-CD, β-CDX1, β-CDX2 and β-CDX3 respectively. The calculated data fitted well with Langmuir isotherm model confirming the adsorption of Cu2+ & Ni2+ ions onto the β-CDXs adsorbent is monolayer. The rate of adsorption of heavy metals (Cu2+ and Ni2+) on the β-CDXs adsorbent has been controlled by kinetic model of Pseudo second order indicating the chemisorption. The optimal adsorption capacities of β-CD, β-CDX1, β-CDX2 and β-CDX3 has been found to be 357.14, 473.93, 510.20 & 534.75 mg/g for Cu2+ and 294.11, 384.61, 408.16 & 423.72 mg/g and for Ni2+ ions, respectively.

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Synthesis and Characterization of the Adducts of Bis(O-ethyldithiocarbonato)copper(II) with Substituted Pyridines

Cited by 3 publications

References 9 publications

Synthesis and Characterization of Iron(II), Cobalt(II), Nickel(II), Copper(II), and Zinc(II) Complexes Using Diphenylmethyl Xanthate Ligand

Synthesis and Characterization of Iron(II), Cobalt(II), Nickel(II), Copper(II), and Zinc(II) Complexes Using Diphenylmethyl Xanthate Ligand

Synthesis and Characterization of Novel β-CD-Xanthate and Its Application in the Treatment of Heavy Metal Containing Wastewater and Lignin Enriched Paper Industry Wastewater

Synthesis and Characterization of Novel β-CD-Xanthate and Its Application in the Treatment of Heavy Metal Containing Wastewater and Lignin Enriched Paper Industry Wastewater

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