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开发一种可见光活性NiTiO₃涂层,以有效地从饮用水中去除持久除草剂2,6-二二胺 (BAM)

P C Hernández-Del Castillo¹, G Robledo-Trujillo¹, V Rodríguez-González¹

¹División de Materiales Avanzados, Instituto Potosino de Investigación Científica y Tecnológica A. C., 78216, San Luis Potosí, SLP, Mexico.

|July 31, 2023

概括

在玻璃上固定的酸 (NiTiO3) 纳米颗粒使用可见光有效降解除草剂2,6-二二胺 (BAM). 优化的1 wt%NiTiO3涂层实现了92.56%的降解,并证明了出色的可重复使用性.

科学领域:

材料科学材料科学材料科学
环境化学环境化学
纳米技术纳米技术

背景情况:

像2,6-二二胺 (BAM) 这样的反复性除草剂对水质构成风险.
开发高效且可重复使用的光催化剂对于水资源整治至关重要.

研究的目的:

为了合成和评估在玻璃上固定的NiTiO3纳米颗粒,用于BAM光降解.
为了研究Ni度对光催化活性和稳定性的影响.
为了确定参与降解过程的活性物种.

主要方法:

在玻璃板上对NiTiO3纳米颗粒的螺旋涂层固定.
使用UV-vis,SEM-EDS和XRD进行表征.
在可见光下进行光催化降解实验.
清洁者测试用于识别反应性氧物种.

主要成果:

与裸体TiO2相比,NiTiO3涂层表现出增强的可见光吸收和减少带间距.
1%重量NiTiO3 (1TESNi) 涂层在240分钟内实现了92.56%的BAM降解.
1TESNi涂层在三次重复使用周期中保持了高的光催化效率,损耗最小 (1.99%).
清理器测试表明,OH−和O2−激素参与了BAM降解.

结论:

固定在玻璃上的NiTiO3纳米粒子是有效的光催化剂,可在可见光下降解BAM.
由于增强可见光吸收,表面积和电荷分离,1TESNi涂层表现出卓越的性能.
这些NiTiO3涂层为清除饮用水中的除草剂提供了一种实用且可重复使用的解决方案.

关键词:

在 BAM 除草剂中使用 BAM 除草剂.固定不动的NP可以使用.尼克尔酸酸盐是什么意思线涂层是一种线涂层.可见光-可见光的光线

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