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空位对调节BiOBr微结构,在可见光照射下有效地去除二甲基甲酸盐

Bo Yang¹, Wenjing Wang², Zhenzhong Hu³

¹Tianjin Key Laboratory of Clean Energy and Pollutant Control, School of Energy and Environmental Engineering, Hebei University of Technology, Tianjin 300401, China; Anhui Province Key Laboratory of Pollutant Sensitive Materials and Environmental Remediation, Huaibei Normal University, Huaibei 235000, China.

Journal of hazardous materials

|July 9, 2023

概括

在BiOBr光催化剂中引入"Bi-Br"空位对,可增强水中甲酸 (PAE) 的去除. 这种缺陷工程改善了电荷分离和PAE激活,以有效地修复环境.

科学领域:

环境科学环境科学
材料科学材料科学材料科学
催化剂是一种催化剂.

背景情况:

从水中有效地去除甲酸乙烯 (PAE) 是至关重要的.
当前的光催化剂策略往往忽视了PAE降解的具体情况.
光催化剂的修改通常集中在电荷分离上.

研究的目的:

使用缺陷工程开发PAE光降解的有效策略.
为了研究空位对缺陷在光催化中的作用.
为了提高PAE在水中的去除效率.

主要方法:

用"Bi-Br"空位对合成BiOBr光催化剂.
光催化剂的实验性表征.
理论计算 (例如,DFT) 以了解缺陷机制.
对PAE进行光催化降解实验.

主要成果:

"Bi-Br"空位对BiOBr表现出优异的光催化活性,用于PAE去除.
"Bi-Br"空位对提高了电荷分离效率.
空位对改变了O2吸附,加速了反应性氧物种 (ROS) 的形成.
观察到PAE在光催化剂表面的增强吸附和激活.

结论:

引入"Bi-Br"空位对是设计高活性光催化剂的有效策略.
缺陷工程,特别是空置对,为PAE在水中的处理提供了一种新的方法.
这项工作为优化环境污染物降解光催化剂提供了洞察力.

关键词:

甲基甲酸盐的降解降解 O(2) 激活方式光催化作用的光催化反应机制的反应机制 Bi-Br的空缺位置配对.

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