Hematite (α-Fe₂O₃) nanoparticles were synthesized through the cost-effective sol-gel method. The impact of temperature influenced in as-prepared and calcinated hematite nanoparticles was explored. To characterize the synthesized compounds with the help of X-ray diffraction (XRD), Thermogravimetric & Differential Thermogravimetric Analysis (TG-TDA), Fourier Transform Infrared spectroscopy (FT-IR), Ultra-Violet spectroscopy (UV-Vis), Scanning Electron Microscope with Energy Dispersive X-ray Analysis (SEM with EDAX), and Vibrating Sample Magnetometer techniques (VSM). The structural studies were confirmed rhombohedral structure with space group R-3c in C-2 NPs. The surface morphological analysis confirmed shape, size, and particle homogeneity were ensured with the arrival of temperature. The thermal analysis reported as the C-1 NPs shows excellent phase stability till reaching1100°C. FT-IR confirms the phase purity of the nanoparticles synthesized. The optical absorption at 534nm confirms the formation of red color α-Fe₂O₃ C-2 NPs and the optical bandgap values 1.92-1.97eV. The magnetometry steady was observed as a magnetic transition of paramagnetic to weak ferromagnetic magnetic behavior of NPs, which implies that several structural improvements are achieved by the thermal interfacing on the NPs surface.

赤铁矿（α-Fe ₂ O ₃) 纳米粒子是通过具有成本效益的溶胶-凝胶方法合成的。研究了温度对制备的和煅烧的赤铁矿纳米颗粒的影响。借助 X 射线衍射 (XRD)、热重和差示热重分析 (TG-TDA)、傅里叶变换红外光谱 (FT-IR)、紫外光谱 (UV-Vis)、扫描电子对合成的化合物进行表征具有能量色散 X 射线分析的显微镜（带有 EDAX 的 SEM）和振动样品磁强计技术 (VSM)。结构研究证实了 C-2 NP 中空间群为 R-3c 的菱面体结构。表面形态分析证实，随着温度的到来，形状、尺寸和颗粒均匀性得到保证。热分析报告为 C-1 NPs 显示出优异的相稳定性，直到达到 1100°C。FT-IR 证实了合成的纳米粒子的相纯度。534nm 处的光吸收证实了红色 α-Fe 的形成₂ O ₃ C-2 NPs 和光学带隙值 1.92-1.97eV。磁力测量稳定被观察为 NPs 的顺磁性向弱铁磁行为的磁性转变，这意味着通过 NPs 表面的热界面实现了一些结构改进。