Ghozza M H, Yousef Tarek A, Al-Dakhil Abdullah, Ferjani Hela, Alosaimi Abeer M, Abdel-Hameed Reda, Kamoun Elbadawy A, Zahran H Y, Mosleh Ahmed T, Yahia I S
Basic Science Department, Cairo Higher Institute for Engineering, Computer Science and Management New Cairo Egypt +20-1283320302.
Chemistry Department, College of Science, Imam Mohammad Ibn Saud Islamic University (IMSIU) Riyadh 11623 Saudi Arabia.
RSC Adv. 2025 Apr 7;15(14):10970-10983. doi: 10.1039/d5ra00469a. eCollection 2025 Apr 4.
Bismuth perovskite BiBaFeO nanoparticles were synthesized by a solution-combustion technique at a fuel-to-oxidizer ratio equal to unity ( = (F/O) = 1), where the effect of fuel type on their structural, electric, magnetic, and photocatalytic properties was discussed. Using Rietveld refinement with FullProf software, the prepared materials were characterized by XRD and SEM to examine their composition and morphology. Results revealed that the perovskite's pure phase ranged from 74% to 100%. Meanwhile, Scherrer, Williamson-Hall, and SEM investigations were used to calculate the crystallite sizes of the samples, which ranged from 18.5-27.7 nm, 23-32 nm, 23.8-34.3 nm, and 53.8-292.8 nm, respectively. In addition, the increase in DC conductivity is explained by decreased grain boundary scattering, due to the reduction of crystallite size. The multiferroic nanoparticles' estimated activation energy ranged from 0.39 to 0.07 eV. The transition temperature was 368 K for urea and triethanolamine (TEA) samples, while the other samples were pushed to a lower temperature, where conduction followed non-adiabatic small polaron hopping (SPH). Meanwhile, TEA and fuel-free samples appear to have a high magnetization parameter. The coercivity Hc of the TEA sample is three times greater than the others. According to the tests conducted to assess the nanoparticles' electrocatalytic performances, every fuel utilized in nanoparticle production process significantly impacts the electrocatalytic degradation of Congo red (CR) dye. When the 4 minutes experiment was over, all dye content in the solution was eliminated. The synthesized BiBaFeO using various fuels considerably impacts the parameters under study. Therefore, appropriate magnetic, electrical, and electrocatalysis properties were achieved by modifying the fuel type.
采用溶液燃烧法，在燃料与氧化剂比例等于1（即(F/O)=1）的条件下合成了铋基钙钛矿BiBaFeO纳米颗粒，并讨论了燃料类型对其结构、电学、磁学和光催化性能的影响。使用FullProf软件进行Rietveld精修，通过XRD和SEM对制备的材料进行表征，以研究其组成和形态。结果表明，钙钛矿纯相含量在74%至100%之间。同时，利用谢乐法、威廉姆森-霍尔法和SEM研究来计算样品的微晶尺寸，其范围分别为18.5 - 27.7 nm、23 - 32 nm、23.8 - 34.3 nm和53.8 - 292.8 nm。此外，由于微晶尺寸减小导致晶界散射降低，从而解释了直流电导率的增加。多铁性纳米颗粒的估计活化能范围为0.39至0.07 eV。尿素和三乙醇胺（TEA）样品的转变温度为368 K，而其他样品的转变温度则降低，其传导遵循非绝热小极化子跳跃（SPH）。同时，TEA和无燃料样品似乎具有较高的磁化参数。TEA样品的矫顽力Hc比其他样品大三倍。根据评估纳米颗粒电催化性能的测试，纳米颗粒生产过程中使用的每种燃料都会对刚果红（CR）染料的电催化降解产生显著影响。4分钟的实验结束后，溶液中的所有染料成分都被去除。使用不同燃料合成的BiBaFeO对所研究的参数有很大影响。因此，通过改变燃料类型可获得合适的磁学、电学和电催化性能。
