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中介于空位的g-C₃N₄/BiVO₄Z模式异构结构纳米结构,用于特殊的光催化性能

Xiaoyan Zhong¹, Yuanli Li¹, Sili Liu¹

¹School of Materials and Chemistry, Analytical and Testing Center, Innovation Center of Nuclear Environmental Safety Technology, Southwest University of Science and Technology, Mianyang, 621010, China.

Environmental research

|December 26, 2024

概括

一种新的V_N-g-C₃N₄/BiVO₄ (V_N-CN/BVO) 光催化剂在可见光下有效降解胺B等有机污染物. 这种Z-scheme与空缺的异质连接为废水整治提供了一个有前途的解决方案.

科学领域:

材料科学材料科学材料科学
环境化学环境化学
光催化作用的光催化

背景情况:

有机污染物对环境和健康构成重大风险.
开发高效的可见光驱动光催化剂对于废水处理至关重要.
空位和异质连接是增强光催化活性的有希望的策略.

研究的目的:

为了合成和描述一个新的V_N-g-C₃N₄/BiVO₄ (V_N-CN/BVO) Z模式异构连接光催化剂.
评估其在可见光下降解代表性有机污染物的效率.
调查空位和Z模式异质连接在光催化过程中的作用.

主要方法:

通过缺陷工程合成V_N-g-C₃N₄/BiVO₄异质连接.
可见光驱动的光催化降解实验使用罗达胺B,甲基蓝和四环素化物.
在各种环境条件下 (离子强度,pH) 描述光催化剂的特性和性能.
使用液体染色学-质谱学识别降解产品.

主要成果:

V_N-CN/BVO光催化剂实现了高降解率:RhB在30分钟内降解98.91%,MB在100分钟内降解97.59%,TCH在100分钟内降解76.89%.
催化剂在各种废水条件下在降解四环素化物方面表现出极好的性能和稳定性.
阐明了TCH的分解途径,证实了光催化剂的有效性.

结论:

V_N-CN/BVO Z模式异质连接表现出优越的可见光光催化活性,用于有机污染物降解.
空隙和Z模式结构协同增强电荷分离,载体转移和污染物吸附.
这项研究强调了缺陷工程与异质连接策略相结合的潜力,以实现先进的环境修复.

关键词:

有关的空缺职位有机污染物有机污染物在V(N) -g-C(3)N(4)/BiVO(4) 的情况下.可见光光催化剂可见光催化剂可见光.这就是Z计划.

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