A simple and low-cost new procedure for synthesis of nickel(II) and cadmium(II) sulfides in situ thiourea metal–chelation precursor

IF 1.3 4区化学 Q3 CHEMISTRY, MULTIDISCIPLINARY

Bulletin of the Chemical Society of Ethiopia Pub Date : 2023-03-06 DOI:10.4314/bcse.v37i3.10

M. S. Refat, M. Y. El-Sayed, Ibrahim H. Alsohaimi, Hassan M. Hassan, Thamer S. Alraddadid, Sultan Akhtar

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引用次数: 1

Abstract

ABSTRACT. Nickel(II) and cadmium(II) sulfides are a promising chemical material in various advanced research areas such as solar cells, supercapacitors, catalysts, and of significant interest for their practical implementations in up to photonics and electronics. Cadmium and nickel sulfides were synthesized with stoichiometries in aqueous media at elevated temperature from Ni(NO3)2.6H2O, NiCl2.6H2O, NiSO4.6H2O, CdCl2, Cd(NO3)2.4H2O, CdSO4.8H2O and thiourea as a sulfur precursor using a direct chemical reaction. At room temperature an octahedral and tetrahedral geometries result from the reactions between different nickel(II), cadmium(II) and thiourea with the molecular formulas can be presented as [Ni(NH2CSNH2)6]X2 and [Cd(NH2CSNH2)4]X2 where X = Cl-, NO3-, SO42. The novelty of our study is precipitated yellow cadmium sulfide and black nickel sulfide at elevated temperature ~80 oC through the molar ratio 1:10 (M2+: thiourea) in aqueous media. Infrared spectra, XRD, TEM including EDX, and elemental analysis were used for characterization the metal sulfides products. The average crystalline size of obtained CdS and NiS particles in range 20-25 nm. Different reaction conditions effects were evaluated on the size, morphology and particle size. KEY WORDS: Nickel and cadmium sulfide, Chelation, Thiourea, XRD, TEM Bull. Chem. Soc. Ethiop. 2023, 37(3), 663-674. DOI: https://dx.doi.org/10.4314/bcse.v37i3.10

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一种简单、低成本的硫脲金属螯合前体原位合成硫化镍（II）和硫化镉（II）的新工艺

摘要。硫化镍（II）和硫化镉（II）在太阳能电池、超级电容器、催化剂等各种先进研究领域是一种很有前途的化学材料，并因其在光子学和电子学领域的实际应用而备受关注。以Ni（NO3）2.6H2O、NiCl2.6H2O、NiSO4.6H2O、CdCl2、Cd（NO3，2.4H2O）、CdSO4.8H2O和硫脲为硫前驱体，采用直接化学反应在高温水介质中以化学计量合成了硫化镉和硫化镍。在室温下，由不同的镍（II）、镉（II）和硫脲之间的反应产生的八面体和四面体几何结构，分子式可表示为[Ni（NH2CSNH2）6]X2和[Cd（NH2CSNH2）4]X2，其中X=Cl-、NO3-、SO42。我们研究的新颖之处在于，在水介质中，通过摩尔比为1:10（M2+：硫脲），在80℃的高温下沉淀出黄色硫化镉和黑色硫化镍。利用红外光谱、XRD、包括EDX在内的TEM和元素分析对金属硫化物产物进行了表征。所获得的CdS和NiS颗粒的平均结晶尺寸在20-25nm的范围内。评价了不同反应条件对粒度、形态和粒径的影响。关键词：硫化镍和硫化镉，螯合，硫脲，XRD，TEM Bull。化学。Soc.Ethiop。2023,37（3），663-674.DOI:https://dx.doi.org/10.4314/bcse.v37i3.10

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来源期刊

Bulletin of the Chemical Society of Ethiopia 化学-化学综合

CiteScore

2.20

自引率

8.30%

发文量

113

审稿时长

6-12 weeks

期刊介绍： The Bulletin of the Chemical Society of Ethiopia (BCSE) is a triannual publication of the Chemical Society of Ethiopia. The BCSE is an open access and peer reviewed journal. The BCSE invites contributions in any field of basic and applied chemistry.