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首页> 外文期刊>Journal of Molecular Structure >Synthesis, characterization, and biological activity of some novel Schiff bases and their Co(II) and Ni(II) complexes: A new route for Co3O4 and NiO nanoparticles for photocatalytic degradation of methylene blue dye
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Synthesis, characterization, and biological activity of some novel Schiff bases and their Co(II) and Ni(II) complexes: A new route for Co3O4 and NiO nanoparticles for photocatalytic degradation of methylene blue dye

机译：一些新型Schiff碱及其Co（II）和Ni（II）复合物的合成，表征和生物活性：Co3O4和NiO纳米粒子用于光催化降解亚甲基蓝染料的新途径

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摘要

Six novel Co(II) and Ni(II)-triazole Schiff base complexes have been successfully synthesized by refluxing the prepared triazole Schiff bases with CoCl2 center dot 6H(2)O or NiCl2 center dot 6H(2)O. The Schiff base ligands were prepared through condensation of 3-R-4-amino-5-hydrazino-1,2,4-triazole with dibenzoylmethane [R=H, CH3, and CH2CH3; namely, L1, L2, and L3, respectively]. The prepared Co(II) and Ni(II) complexes have been identified using elemental analysis, Fr-IR, UV Vis, magnetic moment, conductivity, and thermal analysis. On the basis of the conductance results, it was concluded that all the prepared complexes are non electrolytes. Interestingly, the prepared Co(II) and Ni(II) complexes were employed as precursors for producing of Co3O4 and NiO nanoparticles, respectively. The produced nanostructures have been identified by XRD, HR-TEM, FT-IR and UV-Vis spectra. The produced nanoparticles revealed good photo catalytic activity for the degradation of methylene blue dye under UV illumination in presence of hydrogen peroxide. The percent of degradation was estimated to be 55.71% in 420.0 min and 90.43% in 360.0 min for Co3O4 and NiO, respectively. Moreover, the synthesized complexes, nano-sized Co3O4, and NiO products have been examined, employing modified Bauer-Kirby method, for antifungal (Candida albicans and Aspergillus flavus) and antibacterial (Staphylococcus aureus and Escherichia coli) activities. (C) 2017 Elsevier B.V. All rights reserved.
机译：通过将制备的三唑席夫碱与COCl2中心点6H（2）O或NiCl2中心点6H（2）O回流，通过回流制备的三唑席夫碱来成功地合成了六种新的CO（II）和Ni（II） - 三唑席夫碱基配合物。通过用二苯甲酰甲烷[R = H，CH3和CH 2 CH 3，通过3-R-4-氨基-5-肼氨基-1,2,4-三唑的缩合制备席夫碱配体。即，L1，L2和L3分别为]。使用元素分析，FR-IR，UV Vis，磁矩，电导率和热分析鉴定了制备的CO（II）和Ni（II）配合物。在进行导线的基础上，得出结论，所有制备的配合物都是非电解质。有趣的是，制备的CO（II）和Ni（II）配合物分别作为生产CO 3 O 4和NiO纳米粒子的前体。所产生的纳米结构已通过XRD，HR-TEM，FT-IR和UV-Vis光谱鉴定。所产生的纳米颗粒揭示了在过氧化氢的紫外线照射下亚甲基蓝染料降解的良好光催化活性。降解百分比估计为420.0分钟的55.71％，分别为CO 3 O 4和NIO的360.0分钟为50.43％。此外，已经研究了合成的配合物，纳米尺寸CO 3O4和NIO产品，采用改良的Bauer-Kirby方法，用于抗真菌（Candida Albicans和Flavus）和抗菌（金黄色葡萄球菌和大肠杆菌）活性。 （c）2017年Elsevier B.V.保留所有权利。

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