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g‐C 3 N 4 /Cu 3 P/UiO‐66 Ternary Composites for Enhanced Visible Light Photocatalytic H 2 Evolution
Author(s) -
Pu Junnan,
Jin Zhiliang,
Cheng Yan,
Yuan Wei
Publication year - 2019
Publication title -
chemistryselect
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.437
H-Index - 34
ISSN - 2365-6549
DOI - 10.1002/slct.201900417
Subject(s) - photocatalysis , materials science , ternary operation , x ray photoelectron spectroscopy , composite number , hydrothermal circulation , hydrogen production , water splitting , specific surface area , hydrothermal synthesis , electron transfer , hydrogen , catalysis , chemical engineering , composite material , chemistry , organic chemistry , computer science , engineering , programming language
The synergistic composite g‐C 3 N 4 /Cu 3 P/UiO‐66 with a uniform three‐dimensional (3D) cubic structure distribution was synthesized by hydrothermal method. The larger spherical particles (UiO‐66) uniformly distributed on the g‐C 3 N 4 flaky nanomaterial and the specific surface area of CNCU‐3 reaches an astonishing 1002.08 (m 2 /g), which is 23 times than that of the base material g‐C 3 N 4 . As a result of that, the addition of CU 3 P and MOF can effectively improve charge transfer and separation, and improve the hydrogen production activity of photocatalysts. The photocatalytic activity of g‐C 3 N 4 /Cu 3 P/UiO‐66 ternary composite was significantly better than that of monomer g‐C 3 N 4 , binary g‐C 3 N 4 /Cu 3 P and g‐C 3 N 4 /UiO‐66, especially, the introduction of UiO‐66 significantly increased hydrogen production, and the maximum hydrogen production reach 79 μmol in five hours. Moreover, XRD, SEM, TEM, PL, UV‐vis, XPS prove that Cu 3 P effectively conduct electrons to promote electron transfer and UiO‐66 provide large specific surface area. The synergistic effect of the these factors plays a key role in photocatalytic activity.