Ti 3 C 2 MXene modified g-C 3 N 4 with enhanced visible-light photocatalytic performance for NO purification

As for photocatalytic oxidation of nitric oxide (NO), the low NO oxidation activity and generation of by-products (cf. NO ) are the urgent challenge. To tackle these issues, a simple in-situ growing stragegy was employed to constructe Ti C /g-C N system. The fabricated Ti C /g-C N composite (TC-CN)...

Full description

Saved in:
Bibliographic Details
Published inJournal of colloid and interface science Vol. 575; p. 443
Main Authors Li, Junlian, Zhang, Qian, Zou, Yanzhao, Cao, Yuehan, Cui, Wen, Dong, Fan, Zhou, Ying
Format Journal Article
LanguageEnglish
Published United States 01.05.2020
Subjects
Charge separation
NO oxidation
NO inhibition
TiC MXene
g-CN
Online AccessGet full text

Cover

More Information
Summary:As for photocatalytic oxidation of nitric oxide (NO), the low NO oxidation activity and generation of by-products (cf. NO ) are the urgent challenge. To tackle these issues, a simple in-situ growing stragegy was employed to constructe Ti C /g-C N system. The fabricated Ti C /g-C N composite (TC-CN) presented enhanced photocatalytic NO removal efficiency and inhibited toxic NO generation. Density functional theory (DFT) calculations and experimental characterizations were combined to demonstrate the presence of strong interface effect between Ti C and g-C N , which could greatly improve photo-generated charge carrier separation via the construction of electron transfer channels, and further activate oxygen molecules adsorbed on the side of Ti C layer. As a result, nitrite and nitrate instead of NO were the final products during the photocatalytic reaction process through the monitoring by in situ diffuse reflectance infrared spectroscopy (DRIFTS).
ISSN:1095-7103