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Synthesis of Few‐Layer MoS 2 Nanosheet‐Coated TiO 2 Nanobelt Heterostructures for Enhanced Photocatalytic Activities

2012; Wiley; Volume: 9; Issue: 1 Linguagem: Inglês

10.1002/smll.201201161

1613-6829

Weijia Zhou, Zongyou Yin, Yaping Du, Xiao Huang, Zhiyuan Zeng, Zhanxi Fan, Hong Liu, Jing Wang, Hua Zhang,

MXene and MAX Phase Materials

Abstract MoS 2 nanosheet‐coated TiO 2 nanobelt heterostructures—referred to as TiO 2 @MoS 2 —with a 3D hierarchical configuration are prepared via a hydrothermal reaction. The TiO 2 nanobelts used as a synthetic template inhibit the growth of MoS 2 crystals along the c‐axis, resulting in a few‐layer MoS 2 nanosheet coating on the TiO 2 nanobelts. The as‐prepared TiO 2 @MoS 2 heterostructure shows a high photocatalytic hydrogen production even without the Pt co‐catalyst. Importantly, the TiO 2 @MoS 2 heterostructure with 50 wt% of MoS 2 exhibits the highest hydrogen production rate of 1.6 mmol h −1 g −1 . Moreover, such a heterostructure possesses a strong adsorption ability towards organic dyes and shows high performance in photocatalytic degradation of the dye molecules.