Details

Autor(en) / Beteiligte

• Ou, Wei
• Pan, Jiaqi
• Liu, Yanyan
• Li, Shi
• Li, Hongli
• Zhao, Weijie
• Wang, Jingjing
• Song, Changsheng
• Zheng, Yingying
• Li, Chaorong

Titel

Two-dimensional ultrathin MoS2-modified black Ti3+–TiO2 nanotubes for enhanced photocatalytic water splitting hydrogen production

Ist Teil von

• Journal of energy chemistry, 2020-04, Vol.43, p.188-194

Ort / Verlag

Elsevier B.V

Erscheinungsjahr

2020

Quelle

Alma/SFX Local Collection

Beschreibungen/Notizen

• Two-dimensional (2D) ultrathin MoS2-modified black Ti3+–TiO2 nanotubes were fabricated using an electrospinning–hydrothermal treatment–reduction method. Bare TiO2 nanotubes were fabricated via electrospinning. Then, 2D MoS2 lamellae were grown on the surface of the nanotubes and Ti3+/Ov ions were introduced by reduction. The photocatalytic performance of the 2D MoS2/Ti3+–TiO2 nanotubes was ∼15 times better than that of TiO2. The HER enhancement of the MoS2/Ti3+–TiO2 nanotubes can be attributed to the Pt-like behavior of 2D MoS2 and the presence of Ti3+ ions, which facilitated the quick diffusion of the photogenerated electrons to water, reducing the H2 activation barrier. The presence of Ov ions in the nanotubes and their hollow structure increased their solar utilization. The core–shell heterojunction is prepared via the template method; there the hollow nanosphere, MoS2 QDs and Ti3+/Ov ion are core issues for HER. [Display omitted]