期刊
APPLIED SURFACE SCIENCE
卷 496, 期 -, 页码 -出版社
ELSEVIER
DOI: 10.1016/j.apsusc.2019.143630
关键词
g-C3N4; SnO2 quantum dots; Photocatalysis; Toxic NO2 inhibition; NO removal
类别
资金
- National Natural Science Foundation of China [21403172, 51102245]
- Innovative Research Team of Sichuan Province [2016TD0011]
- International Collaboration Project of Chengdu City [2017-GH02-00014-HZ]
Graphitic carbon nitride (g-C3N4) has been extensively applied for NO removal due to its striking visible-light response and outstanding stability. However, the toxic NO2 product is not completely suppressed in the reaction process due to its poor photo-oxidation ability. Herein, a series of SnO2/g-C3N4 composites were successfully prepared by the decorated of SnO2 quantum dots (QDs) onto g-C3N4 sheets. The experimental results demonstrated that SnO2/g-C3N4 exhibited excellent visible-light response and enhanced photo-oxidization ability to inhibit the generation of NO2. Moreover, the heterostructure between SnO2 and g-C3N4 promotes the separation of photogenerated electron-hole pairs, which is resulted in enhanced photocatalytic NO removal performance. More importantly, the in-situ diffuse reflectance infrared Fourier-transform spectroscopy (DRIFTS) measurement and electron spin resonance (ESR) are conducted to investigate the reaction pathway via detecting the generated intermediates, products and active radicals during NO removal process. This study provides a facile and effective method to enhance the efficiency of photocatalytic NO removal and suppress the concentration of NO2 significantly.
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。
推荐
暂无数据