具有优异光催化性能的铋/氧化铋碘/碳量子点纳米片
Bi/BiOI/carbon quantum dots nano-sheets with superior photocatalysis.
作者信息
Zhao Chenhui, Zhao Zhijie, Liang Ying, Fu Jiangfeng
机构信息
School of Power and Energy, Northwestern Polytechnical University Xi'an 710072 China
School of Chemistry and Chemical Engineering, Northwestern Polytechnical University Xi'an 710072 China.
出版信息
RSC Adv. 2023 Oct 17;13(43):30520-30527. doi: 10.1039/d3ra05145e. eCollection 2023 Oct 11.
A new photocatalyst of Bi/BiOI/Carbon quantum dots (CQDs) was synthesized a simple method. Photocatalytic performance of Bi/BiOI/CQDs was evaluated by photodegradation of RhB. Experiment indicated that the introduction of CQDs could improve the photocatalysis activity of BiOI obviously. Moreover, there is a optimum percentage of CQDs. In this photocatalytic system, the enhanced photoactivity was mainly attributed to the heterojunction interface between CQDs and BiOI, as well as the enhanced light harvesting for the appropriate CQDs introduction. The radicals trapping experiments revealed that O˙, ˙OH and h were the main active species during the photocatalysis process.
通过一种简单的方法合成了一种新型的Bi/BiOI/碳量子点（CQDs）光催化剂。通过对罗丹明B的光降解来评估Bi/BiOI/CQDs的光催化性能。实验表明，CQDs的引入能显著提高BiOI的光催化活性。此外，存在一个CQDs的最佳比例。在该光催化体系中，光活性的增强主要归因于CQDs与BiOI之间的异质结界面，以及适当引入CQDs后光捕获能力的增强。自由基捕获实验表明，O˙、˙OH和h是光催化过程中的主要活性物种。
Zotero 插件