Photoelectrochemical water oxidation over TiO 2 nanotubes modified with MoS 2 and g-C 3 N 4

TiO nanotube arrays (TNAs) have been studied for photoelectrochemical (PEC) water splitting. However, there are two major barriers of TNAs, including a low photo-response and the fast charge carrier recombination in TNAs, leading to poor photocatalytic efficiency. Through a comparison of MoS /TNAs a...

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Bibliographic Details
Published in:Beilstein journal of nanotechnology 2022-12, Vol.13, p.1541-1550
Main Authors: Nguyen, Phuong Hoang, Cao, Thi Minh, Nguyen, Tho Truong, Tong, Hien Duy, Van Pham, Viet
Format: Article
Language:English
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Summary:TiO nanotube arrays (TNAs) have been studied for photoelectrochemical (PEC) water splitting. However, there are two major barriers of TNAs, including a low photo-response and the fast charge carrier recombination in TNAs, leading to poor photocatalytic efficiency. Through a comparison of MoS /TNAs and g-C N /TNAs, it was found that TNAs modified with MoS and g-C N exhibited a current density of, respectively, 210.6 and 139.6 μA·cm at an overpotential of 1.23 V vs RHE, which is 18.2 and 12 times higher than that of pure TNAs under the same conditions. The stability of the MoS /TNAs heterojunction is higher than that of g-C N /TNAs.
ISSN:2190-4286
2190-4286
DOI:10.3762/bjnano.13.127