In Situ Growth of Metallic 1T-MoS2 on TiO2 Nanotubes with Improved Photocatalytic Performance

Miaogen Chen; Tao Sun; Wan Zhao; Xiuru Yang; Wenya Chang; Xiaoxiao Qian; Qian Yang; Zhi Chen

doi:10.1021/acsomega.1c01068

In Situ Growth of Metallic 1T-MoS₂ on TiO₂ Nanotubes with Improved Photocatalytic Performance

ACS Omega. 2021 May 4;6(19):12787-12793. doi: 10.1021/acsomega.1c01068. eCollection 2021 May 18.

Authors

Miaogen Chen¹, Tao Sun¹, Wan Zhao², Xiuru Yang², Wenya Chang¹, Xiaoxiao Qian², Qian Yang², Zhi Chen²

Affiliations

¹ Key Laboratory of Intelligent Manufacturing Quality Big Data Tracing and Analysis of Zhejiang Province, Department of Physics, China Jiliang University, Hangzhou 310018, China.
² College of Materials and Chemistry, China Jiliang University, Hangzhou 310018, China.

Abstract

1T-MoS₂ is in situ grown on TiO₂ nanotubes (TNTs) using a hydrothermal method, forming a 1T-MoS₂@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-MoS₂. Therein, 0.5 wt % 1T-MoS₂@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-MoS₂ may optimize light absorption and charge separation/transport. The active species are identified and the reaction mechanism is proposed here.