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Heterostructured d‐Ti 3 C 2 /TiO 2/ g‐C 3 N 4 Nanocomposites with Enhanced Visible‐Light Photocatalytic Hydrogen Production Activity
Author(s) -
Zhang Mengyuan,
Qin Jiaqian,
Rajendran Saravanan,
Zhang Xinyu,
Liu Riping
Publication year - 2018
Publication title -
chemsuschem
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 2.412
H-Index - 157
eISSN - 1864-564X
pISSN - 1864-5631
DOI - 10.1002/cssc.201802284
Subject(s) - photocatalysis , materials science , nanocomposite , anatase , hydrogen production , hydrogen , nanotechnology , visible spectrum , composite number , analytical chemistry (journal) , chemical engineering , catalysis , optoelectronics , composite material , chemistry , organic chemistry , engineering
Abstract The construction of a 2D–2D heterostructured composite is an efficient method to improve the photocatalytic hydrogen generation capability under visible light. In this work, simple heat treatment of a mixture of g‐C 3 N 4 and delaminated Ti 3 C 2 was used to prepare a series of d‐Ti 3 C 2 /TiO 2 /g‐C 3 N 4 nanocomposites. The d‐Ti 3 C 2 not only acted as the support layer and resource to glue the anatase TiO 2 particles and g‐C 3 N 4 layers together but also served as the fast electron transfer channel to improve the photogenerated charge carriers’ separation efficiency. By tuning the g‐C 3 N 4 /d‐Ti 3 C 2 mass ratio, heating temperature and soaking time, the d‐Ti 3 C 2 /TiO 2 /g‐C 3 N 4 nanocomposite 4‐1‐350‐1 achieved an excellent H 2 evolution rate of 1.62 mmol h −1 g −1 driven by a 300 W Xe lamp with a 420 nm cutoff filter. The heterostructured composite photocatalyst was stable even after 3 cycles, representing excellent potential for the practical application in solar energy conversion.