Characterization, Kinetics, Optimization, and Isotherm Studies of Methyl Green Adsorption on Iron Dithiocarbamate Complex

IF 1.9 4区化学 Q3 CHEMISTRY, MULTIDISCIPLINARY

ChemistrySelect Pub Date : 2024-12-17 DOI:10.1002/slct.202404644

Dr. Suliman A. Alderhami

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Abstract

Iron (III) diethyldithiocarbamate complex (Fe(DTC)) of the general formula [Fe(S₂CN(Et)₂)₃] was synthesized and characterized using chemical, thermogravimetric (TGA/DTG), and (FT-IR) analysis. The vapor adsorption tests verified that the Fe(DTC) was mesoporous and that the pore surface area was 16.73 m²/g, according to the N₂ adsorption-desorption isotherm. The main aim of this study is to eliminate methyl green (MG) from water via Fe(DTC) adsorption. The adsorption experiments, that investigated the influence of pH and mass, demonstrated that both of these factors have an impact on adsorption. The optimal conditions for MG adsorption onto the Fe(DTC) metal complex were 0.05 g for a Fe(DTC) mass and a pH value of 7 ± 0.2. At 333 K, the maximum capacity for the Fe(DTC) metal complex adsorbent was 26 mg/g for MG. At 180 min, the elimination efficiency for MG dye was approximately 87%. Based on the kinetic experiments, the pseudo-second-order model was determined to be the most appropriate for assessing the adsorption process. The mechanism of adsorption was studied by appropriating the adsorption data to the Temkin, Freundlich, Langmuir, Temkin, and Radushkevich models. The results can be adequately described by the Langmuir model.

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二硫代氨基甲酸铁配合物吸附甲基绿的表征、动力学、优化及等温研究

合成了通式[Fe(S2CN(Et)2)3]的二乙基二硫代氨基甲酸铁配合物（Fe(DTC)），并用化学、热重（TGA/DTG）和红外光谱（FT-IR）对其进行了表征。水蒸气吸附实验表明，Fe（DTC）具有介孔性质，孔表面积为16.73 m2/g。本研究的主要目的是通过Fe（DTC）吸附去除水中的甲基绿（MG）。吸附实验考察了pH和质量对吸附的影响，结果表明pH和质量对吸附都有影响。Fe（DTC）金属配合物吸附MG的最佳条件为Fe（DTC）质量为0.05 g， pH值为7±0.2。在333 K时，Fe（DTC）金属络合吸附剂对mg的最大吸附容量为26 mg/g。在180 min时，MG染料的去除率约为87%。通过动力学实验，确定了拟二级吸附模型是表征吸附过程最合适的模型。采用Temkin、Freundlich、Langmuir、Temkin和Radushkevich模型研究了吸附机理。结果可以用Langmuir模型来充分描述。

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来源期刊

ChemistrySelect Chemistry-General Chemistry

CiteScore

3.30

自引率

4.80%

发文量

1809

审稿时长

1.6 months

期刊介绍： ChemistrySelect is the latest journal from ChemPubSoc Europe and Wiley-VCH. It offers researchers a quality society-owned journal in which to publish their work in all areas of chemistry. Manuscripts are evaluated by active researchers to ensure they add meaningfully to the scientific literature, and those accepted are processed quickly to ensure rapid online publication.