Open AccessIn Situ Growth of Metallic 1T-MoS2 on TiO2 Nanotubes with Improved Photocatalytic Performance
Author(s) -
Miaogen Chen,
Tao Sun,
Wan Zhao,
Xiuru Yang,
Wenya Chang,
Xiaoxiao Qian,
Qian Yang,
Zhi Chen
Publication year - 2021
Publication title -
acs omega
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.779
H-Index - 40
ISSN - 2470-1343
DOI - 10.1021/acsomega.1c01068
Subject(s) - photocatalysis , materials science , hydrothermal circulation , in situ , degradation (telecommunications) , composite number , chemical engineering , metal , absorption (acoustics) , hydrothermal synthesis , visible spectrum , catalysis , nanotechnology , composite material , optoelectronics , chemistry , metallurgy , organic chemistry , telecommunications , computer science , engineering
1T-MoS 2 is in situ grown on TiO 2 nanotubes (TNTs) using a hydrothermal method, forming a 1T-MoS 2 @TNTs composite, which is confirmed by its physical characterization. The prepared composites show enhanced photocatalytic performance for the degradation of tetracycline hydrochloride under visible light, and the improved photocatalytic activity is closely related to the loaded amount of 1T-MoS 2 . Therein, 0.5 wt % 1T-MoS 2 @TNTs can degrade 57% in 1 h, which is the highest photocatalytic efficiency observed in experiments so far. It is speculated that the introduction of 1T-MoS 2 may optimize light absorption and charge separation/transport. The active species are identified and the reaction mechanism is proposed here.