A green technology for producing barium ferrite (BaFe₁₂O₁₉) nanoparticles (BFNP’s) using Acorus Calamus rhizome extract was realized. To confirm the phase of magnetoplumbite structure without any impurities, the method of powder X-ray diffraction was performed using the Rietveld analysis and the FullProf program with the P6₃/mmc (No. 194) space group. Unit cell parameters were a = 5.8902(2) Å and c = 23.2103(7) Å. According to Scherrer’s calculations, the average crystallite size was from $\sim$ 32 to $\sim$ 35 nm. The results of scanning electron microscopy confirmed that synthesized BFNP’s are tightly packed and have an average grain size of $\sim$ 70 nm. Raman and IR active modes predicted by group theory are observed at $\sim$ 175 cm⁻¹ and $\sim$ 677 cm⁻¹, which corresponds to the presence of a spinel structure and trigonal pyramidal position in barium hexaferrite. It was established that the spontaneous magnetization is $\sim$ 52 emu/g and coercive force is $\sim$ 440 mT at room temperature. In vitro studies were performed to evaluate the antifungal activity of BFNP’s against various plant pathogenic fungi, namely: Fusarium oxysporum, Alternaria alternata, Colletotrichum gloeosporioides and Marssonina rosae. The antifungal effect of BFNPs was determined for different phytopathogenic fungi at a multiple dose of 200 mg/L, 300 mg/L, 400 mg/L, 500 mg/L and 600 mg/L. The maximum inhibition of mycelial growth (76.67%) was detected at 600 mg/L against the growth of Fusarium oxysoporum mycelium. The data obtained show that BFNP’s synthesized using Acorus Calamus rhizome extract can be applied as a potential antifungal agent.

实现了利用A蒲根茎提取物生产钡铁氧体（BaFe ₁₂ O ₁₉）纳米粒子（BFNP）的绿色技术。为了确认没有任何杂质的磁铅石结构的相，使用Rietveld分析和FullProf程序对P6 ₃ / mmc（No. 194）空间群进行了粉末X射线衍射方法。晶胞参数为a  = 5.8902（2）Å和c  = 23.2103（7）Å。根据Scherrer的计算，平均微晶尺寸为$〜$ 32至 $〜$ 35纳米 扫描电子显微镜的结果证实，合成的BFNP紧密堆积，平均晶粒尺寸为$〜$ 70纳米 通过群论预测的拉曼和红外激活模式在$〜$ 175厘米^-1和$〜$ 677 cm ^-1，对应于六铁酸钡中尖晶石结构和三角锥位置的存在。已经确定自发磁化是$〜$ 52 emu / g，矫顽力为 $〜$ 室温下为440 mT。在体外进行研究，以评估BFNP年代对各种植物病原真菌，即抗真菌活性：尖孢镰刀菌，链格孢，炭疽病菌和Marssonina蔷薇。在200 mg / L，300 mg / L，400 mg / L，500 mg / L和600 mg / L的多次剂量下，测定了不同植物致病真菌对BFNPs的抗真菌作用。在600 mg / L下，对尖孢镰刀菌菌丝体的生长具有最大的抑制作用（76.67％）。获得的数据表明，BFNP是使用Acorus Calamus合成的 根茎提取物可用作潜在的抗真菌剂。