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Green synthesis and thermoluminescent response of ZnO particles using Mimosa tenuiflora bark extract
Radiation Physics and Chemistry ( IF 2.8 ) Pub Date : 2024-10-30 , DOI: 10.1016/j.radphyschem.2024.112350 Milena Lima Guimarães, Ricardo Ferrari Ferraz, Raquel Aline Pessoa Oliveira, Helinando Pequeno de Oliveira
Radiation Physics and Chemistry ( IF 2.8 ) Pub Date : 2024-10-30 , DOI: 10.1016/j.radphyschem.2024.112350 Milena Lima Guimarães, Ricardo Ferrari Ferraz, Raquel Aline Pessoa Oliveira, Helinando Pequeno de Oliveira
The continuous growth of industrial activity has led to environmental degradation, highlighting the need for alternative and environmentally friendly chemical methods for creating technological solutions for society. Green synthesis offers a promising approach for the large-scale production of materials for several applications. Herein, the synthesis of zinc oxide (ZnO) particles is proposed by a green route using Mimosa tenuiflora bark extract for evaluation of the thermoluminescent (TL) response of the produced material at different calcination temperatures (400 °C, 700 °C, and 1000 °C). The resulting material was evaluated from X-ray diffraction (XRD), scanning electron microscope (SEM), X-ray fluorescence (XRF), UV–visible (UV–vis) spectroscopy, and thermoluminescence (TL) measurements. The ZnO powder exhibited a single-phase wurtzite ZnO with a hexagonal unit cell crystal system with the crystallite size affected by the calcination temperature. ZnO/Teflon® pellets were prepared to assess the TL response under irradiation with a90 Sr beta radiation source between 10 Gy and 300 Gy. The samples calcined at 400 and 700 °C did not show a TL response, while the samples calcined at 1000 °C exhibited an intense TL signal, with a prominent peak at 308 °C and a linear growth in the range of 10–300 Gy, reinforcing the perspectives for use of ZnO-1000/Teflon® pellets in TL dosimetry.
中文翻译:
使用含羞草树皮提取物对 ZnO 颗粒的绿色合成和热发光响应
工业活动的持续增长导致环境恶化,凸显了为社会创造技术解决方案的替代性和环保化学方法的必要性。绿色合成为多种应用的材料的大规模生产提供了一种很有前途的方法。在此,使用含羞草树皮提取物通过绿色路线提出氧化锌 (ZnO) 颗粒的合成,用于评估所生产材料在不同煅烧温度(400 °C、700 °C 和 1000 °C)下的热发光 (TL) 响应。通过 X 射线衍射 (XRD)、扫描电子显微镜 (SEM)、X 射线荧光 (XRF)、紫外-可见光 (UV-Vis) 光谱和热释光 (TL) 测量对所得材料进行评估。ZnO 粉末表现出单相纤锌矿 ZnO,具有六方晶胞晶系,晶粒尺寸受煅烧温度影响。制备 ZnO/Teflon® 颗粒,以评估 10 Gy 至 300 Gy 的 a90Sr β 辐射源照射下的 TL 响应。在 400 °C 和 700 °C 下煅烧的样品没有表现出 TL 响应,而在 1000 °C 下煅烧的样品表现出强烈的 TL 信号,在 308 °C 时有一个突出的峰,在 10–300 Gy 范围内线性增长,加强了 ZnO-1000/Teflon® 颗粒在 TL 剂量测定中的应用前景。
更新日期:2024-10-30
中文翻译:
使用含羞草树皮提取物对 ZnO 颗粒的绿色合成和热发光响应
工业活动的持续增长导致环境恶化,凸显了为社会创造技术解决方案的替代性和环保化学方法的必要性。绿色合成为多种应用的材料的大规模生产提供了一种很有前途的方法。在此,使用含羞草树皮提取物通过绿色路线提出氧化锌 (ZnO) 颗粒的合成,用于评估所生产材料在不同煅烧温度(400 °C、700 °C 和 1000 °C)下的热发光 (TL) 响应。通过 X 射线衍射 (XRD)、扫描电子显微镜 (SEM)、X 射线荧光 (XRF)、紫外-可见光 (UV-Vis) 光谱和热释光 (TL) 测量对所得材料进行评估。ZnO 粉末表现出单相纤锌矿 ZnO,具有六方晶胞晶系,晶粒尺寸受煅烧温度影响。制备 ZnO/Teflon® 颗粒,以评估 10 Gy 至 300 Gy 的 a90Sr β 辐射源照射下的 TL 响应。在 400 °C 和 700 °C 下煅烧的样品没有表现出 TL 响应,而在 1000 °C 下煅烧的样品表现出强烈的 TL 信号,在 308 °C 时有一个突出的峰,在 10–300 Gy 范围内线性增长,加强了 ZnO-1000/Teflon® 颗粒在 TL 剂量测定中的应用前景。