Open AccessOne pot synthesis of Ti and O co-doped g-C3N4: a novel composite for efficient visible-light-driven photocatalytic inactivation of E. cloacae
Author(s) -
Peng She,
Chun Yao,
Jun Li,
Hegang Bao,
Xiuquan Xu,
Hong Zhou
Publication year - 2021
Publication title -
materials research express
Language(s) - English
Resource type - Journals
ISSN - 2053-1591
DOI - 10.1088/2053-1591/ac2d6f
Subject(s) - photocatalysis , enterobacter cloacae , visible spectrum , formic acid , calcination , nuclear chemistry , materials science , catalysis , doping , photochemistry , chemistry , organic chemistry , biochemistry , escherichia coli , optoelectronics , klebsiella pneumoniae , gene
Co-doping is one of the most facile and efficient strategies for boosting the photocatalytic performance of g-C 3 N 4 . Herein, a series of Ti and O co-doped g-C 3 N 4 (Ti/OCN) composites with excellent photocatalytic inactivation activity of Enterobacter cloacae ( E. cloacae ) were successfully synthesized by simple calcination of urea/formic acid/TiCl 4 precursor. The obtained Ti/OCN-3 possessed the optimal photocatalytic capability with complete inactivation of 6.20 log CFU·ml −1 E. cloacae under 60 min of visible light irradiation. The improved photocatalytic disinfection performance was probably attributed to the synergistic effect of Ti and O co-doping, which led to an extended visible light response and accelerated charge transport efficiency. Furthermore, scavenger trapping and electron spin resonance (ESR) experiments revealed that ·O 2 − , h + and ·OH were responsible for the enhanced inactivation activity. Overall, this research provided a promising strategy for fabricating g-C 3 N 4 -based catalysts to efficiently deal with the hazards of pathogenic microorganisms.