MoS2/Au-Sensitized TiO2 Nanotube Arrays with Core-Shell Nanostructure for Hydrogen Production

Cheng, Xiaorong, Lu, Yuhua, Gu, Shoulin and Dawson, Graham ORCID: 0000-0002-1540-4791 (2017) MoS2/Au-Sensitized TiO2 Nanotube Arrays with Core-Shell Nanostructure for Hydrogen Production. NANO, 12 (9). p. 1750115.

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Official URL: http://dx.doi.org/10.1142/s1793292017501156

Abstract

<jats:p> Herein, a TiO<jats:sub>2</jats:sub> NTAs-Au-MoS<jats:sub>2</jats:sub> core–shell photoanode was constructed with the intention to fulfill the efficient transfer of photo-generated carriers to the photoelectrode’s surface. Au nanoparticles were decorated by a drop casting method, and the MoS<jats:sub>2</jats:sub> layer was deposited above the Au nanoparticles using a photoreduction-annealing process. Au nanoparticles were well dispersed on the inner wall of the TiO<jats:sub>2</jats:sub> nanotubes and covered by the MoS<jats:sub>2</jats:sub> layer, forming a core–shell nanostructure. The MoS<jats:sub>2</jats:sub> layer significantly improved the attachment between Au nanoparticles and TiO<jats:sub>2</jats:sub> NTAs, resulting in increased PEC stability and performance. Attributed to the excitation of Au nanoparticles’ localized surface plasmon resonance effect and visible light utilization of MoS<jats:sub>2</jats:sub>, the TiO<jats:sub>2</jats:sub> NTAs-Au-MoS<jats:sub>2</jats:sub> core–shell photoanode exhibits greatly enhanced photocurrent density. An increase from 67[Formula: see text][Formula: see text]A/cm<jats:sup>2</jats:sup> to 234[Formula: see text][Formula: see text]A/cm<jats:sup>2</jats:sup> under Xe lamp illumination and from 2.6[Formula: see text][Formula: see text]A/cm<jats:sup>2</jats:sup> to 12.6[Formula: see text][Formula: see text]A/cm<jats:sup>2</jats:sup> under visible light illumination ([Formula: see text][Formula: see text]nm) compared with the TiO<jats:sub>2</jats:sub> NTAs was observed. </jats:p>

Item Type:	Article
Uncontrolled Keywords:	Nanostructures, photoelectrochemical property, hydrogen production
Depositing User:	Symplectic Admin
Date Deposited:	02 Dec 2019 09:13
Last Modified:	19 Jan 2023 00:18
DOI:	10.1142/S1793292017501156
Related URLs:	Author Publisher
URI:	https://livrepository.liverpool.ac.uk/id/eprint/3064384