General Chemistry Department, Peoples' Friendship University of Russia (RUDN University), 6 Miklukho-Maklaya st, Moscow, 117198, Russian Federation.
General Chemistry Department, Peoples' Friendship University of Russia (RUDN University), 6 Miklukho-Maklaya st, Moscow, 117198, Russian Federation.
Mater Sci Eng C Mater Biol Appl. 2019 Apr;97:813-826. doi: 10.1016/j.msec.2018.12.077. Epub 2018 Dec 28.
In this study, synthesis of bimetallic (Co, Mn, and Ni) complexes of salicylic acid (L) and 1,2 dihydroxybenzene (L) based on titanium(IV) were investigated, then the samples were decomposed by thermal method to obtain MTiO nanoparticles (M = Ni, Co, and Mn). The samples in complexes mode were analyzed by UV-Vis (200-800 nm), FT-IR (4000-400 Cm), CHN analysis and the structure of the bimetallic compounds also were investigated by the Quantum-chemical modelling. In addition, the samples in nanoparticles mode were studied by thermal analysis (to obtain DTA curves), XRD, FESEM image and EDX analyzing. BET surface analysis was carried out to analyze active surface, pore diameter and porosity of the MTiO nanoparticles. Based on the results, obtained samples as catalysts were able to absorb not just UV but also visible light. Catalysts were able to degrade bromophenol blue as a harmful organic substance under UV and visible lights, although, this ability was more significant when the samples were used under visible light.
本研究合成了基于钛(IV)的水杨酸(L)和 1,2 二羟基苯(L)的双金属(Co、Mn 和 Ni)配合物，然后通过热分解法得到 MTiO 纳米粒子（M=Ni、Co 和 Mn）。采用 UV-Vis（200-800nm）、FT-IR（4000-400cm）、CHN 分析对配合物模式下的样品进行分析，并采用量子化学建模对双金属化合物的结构进行了研究。此外，还通过热分析（获得 DTA 曲线）、XRD、FESEM 图像和 EDX 分析对纳米粒子模式下的样品进行了研究。BET 表面分析用于分析 MTiO 纳米粒子的比表面积、孔径和孔隙率。结果表明，所得样品作为催化剂不仅能够吸收紫外光，还能够吸收可见光。催化剂能够在紫外光和可见光下降解溴酚蓝等有害物质，但在可见光下使用时，这种能力更为显著。
