Open AccessTwo dimensional Z-scheme AgCl/Ag/MnTiO3 nano-heterojunctions for photocatalytic degradation performance enhancement
Author(s) -
Yanyan Liu,
Jiaqi Pan,
Wei Ou,
Panhong Wang,
Zhanfen Chen,
Chaorong Li
Publication year - 2019
Publication title -
iop conference series. earth and environmental science
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.179
H-Index - 26
eISSN - 1755-1307
pISSN - 1755-1315
DOI - 10.1088/1755-1315/358/5/052013
Subject(s) - heterojunction , materials science , degradation (telecommunications) , absorption (acoustics) , photocatalysis , nanowire , x ray photoelectron spectroscopy , electron , optoelectronics , nanotechnology , chemical engineering , physics , composite material , chemistry , electrical engineering , catalysis , engineering , biochemistry , quantum mechanics
The AgCl/Ag/MnTiO3 heterojunction was synthesized by two steps, the MnTiO3 nanowires were first prepared by electrospinning, and then Ag/AgCl was loaded onto MnTiO3 by photodeposition. It can be seen that the AgCl/Ag/MnTiO3 heterojunction is successfully synthesized and proved by XPS and SEM. The absorption band of the AgCl/Ag/MnTiO3 heterojunction exhibits a red shift indicating an increase absorption in sunlight. Compared with pure MnTiO3, the AgCl/Ag/MnTiO3 heterojunction exhibits a better photocatalytic degradation rate of about 8 times, which is attributed to the AgCl/Ag could accelerate the transfer of photogenerated electrons and promote separation of electron-holes efficiently.