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K-doped NaNbO₃的增强光催化性能与结构缺陷,光学和极性质相关

Rajbala Nain¹, Rakesh Kumar Dwivedi²

¹Department of Physics and Materials Science and Engineering, Jaypee Institute of Information Technology, Noida, 201309, India.

Environmental science and pollution research international

|March 18, 2025

概括

环保的K改性NaNbO3催化剂有效降解废水中的甲蓝染料. 最佳的催化剂成分实现了96%的降解效率,展示了环境修复的潜力.

科学领域:

材料科学材料科学材料科学
环境化学环境化学
催化剂是一种催化剂.

背景情况:

工业化推动了水污染,特别是来自诸如甲蓝之类的染料.
有效的废水处理对于环境可持续性和人类健康至关重要.

研究的目的:

为了合成和评估K-修改的NaNbO3催化剂用于甲基蓝 (MB) 降解.
研究合成催化剂的结构,光学和电子特性.
阐明光催化机制并确定染料降解的最佳条件.

主要方法:

固态反应方法用于合成K修饰的NaNbO3 (x=0-0.20).
用于结构分析的X射线衍射 (XRD).
紫外可见光谱和X射线光电子光谱 (XPS) 用于光学和电子特性.
在紫外线照射下进行光催化降解实验.

主要成果:

所有合成的材料都表现出单相或形结构.
带隙能量从3.21 eV下降到3.01 eV,随着K含量增加.
对于K-修改的NaNbO3催化剂,x=0.10,MB染料的最大降解效率为96%
超氧化离子被确定为降解过程中的关键物种.

结论:

基改NaNbO3是一种有前途的环保催化剂,用于甲蓝的降解.
优化催化剂成分和了解降解机制对于有效的废水处理至关重要.
这项研究提供了对缺陷建模和电子转移的见解,以增强光催化.

关键词:

带状图带状图带状图带状图 MB染色剂 MB染色剂的使用方法这就是NaNbO3的含量.光催化作用的光催化废水整治废水整治废水整治这是XPSXPS.

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