Najdanović Slobodan M, Kostić Miloš M, Petrović Milica M, Velinov Nena D, Radović Vučić Miljana D, Mitrović Jelena Z, Bojić Aleksandar Lj
Department of Chemistry, Faculty of Sciences and Mathematics, University of Niš, Višegradska 33, 18000 Niš, Serbia.
Molecules. 2025 Feb 23;30(5):1020. doi: 10.3390/molecules30051020.
Bismuth basic nitrates (BBNs) were synthesized via an electrochemical method, i.e., by electrodeposition from an acidic solution of bismuth nitrate, followed by thermal treatment in an air environment. For the first time, the influence of various electrochemical parameters on the morphology, crystal structure, and chemical structure of BBNs was examined. The following synthesis parameters were investigated: electrodeposition current density, thermal treatment temperature of the obtained deposit, and working electrode material (cathode). The obtained materials were characterized by SEM-EDX, XRD, FTIR, TG, and N adsorption/desorption methods and were applied for the sorption of the textile dye RB19. The results showed that the electrodeposition current density and thermal treatment temperature affect the surface morphology, chemical composition, and crystal structure of the obtained materials, as well as the RB19 sorption efficiency. On the other hand, the working electrode material does not affect the properties of the synthesized materials mentioned. Kinetic, isotherm, and thermodynamic analysis of the sorption process were also examined.
碱式硝酸铋（BBNs）通过电化学方法合成，即从硝酸铋酸性溶液中进行电沉积，随后在空气环境中进行热处理。首次研究了各种电化学参数对BBNs的形态、晶体结构和化学结构的影响。研究了以下合成参数：电沉积电流密度、所得沉积物的热处理温度以及工作电极材料（阴极）。通过扫描电子显微镜-能谱仪（SEM-EDX）、X射线衍射仪（XRD）、傅里叶变换红外光谱仪（FTIR）、热重分析仪（TG）和氮吸附/脱附方法对所得材料进行表征，并将其应用于纺织染料RB19的吸附。结果表明，电沉积电流密度和热处理温度会影响所得材料的表面形态、化学成分和晶体结构，以及RB19的吸附效率。另一方面，工作电极材料不会影响上述合成材料的性能。还对吸附过程进行了动力学、等温线和热力学分析。
