4.7 Article

Enhanced photocatalytic degradation of bisphenol A by a novel donor-acceptor g-C3N4: p-p interactions boosting the adsorption and electron transfer behaviors

期刊

出版社

ELSEVIER
DOI: 10.1016/j.seppur.2022.121947

关键词

D-A typeg-C3N4; Expanded p-conjugated system; p-p interactions; DFT calculation

资金

  1. Natural Science Foundation of China [51979081, 52100179]
  2. Fundamental Research Funds for the Central Universities [B210202052]
  3. National Science Funds for Creative Research Groups of China [51421006]
  4. PAPD

向作者/读者索取更多资源

In this study, D-A type graphitic carbon nitride (g-C3N4) with expanded pi-conjugated system was prepared. The formed charge transfer channels in D-A g-C3N4 substantially promote the spatial separation and transfer efficiency of photogenerated charges. Additionally, the expanded pi-conjugated system improves light absorption ability and enhances the interactions between catalysts and pollutant molecules.
The interaction and electron transfer between pollutant molecules and photocatalysts are critical to the degra-dation process but has been rarely studied. In the present contribution, donor-acceptor (D-A) type graphitic carbon nitride (g-C3N4) with expanded pi-conjugated system are elaborately prepared. The removal efficiency of bisphenol A (a typical endocrine disruptor) by the optimal sample is 2.9 times as that of pure g-C3N4. Based on the experimental results and DFT calculation, it is found that the formed charge transfer channels in D-A g-C3N4 substantially promote the spatial separation and transfer efficiency of photogenerated charges. Besides, the expanded pi-conjugated system improves light absorption ability, enhances the pi-pi interactions between catalysts and pollutant molecules (facilitating the adsorption and electron transfer). This study provides a new idea for photocatalysis to achieve efficient environmental remediation, that is the adsorption and electron transfer of pollutants in the degradation process should be further considered while modifying the photocatalysts.

作者

我是这篇论文的作者
点击您的名字以认领此论文并将其添加到您的个人资料中。

评论

主要评分

4.7
评分不足

次要评分

新颖性
-
重要性
-
科学严谨性
-
评价这篇论文

推荐

暂无数据
暂无数据