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Porous Graphitic Carbon Nitride Derived from Melamine–Ammonium Oxalate Stacking Sheets with Excellent Photocatalytic Hydrogen Evolution Activity
Author(s) -
Li Kui,
Xie Xin,
Zhang WeiDe
Publication year - 2016
Publication title -
chemcatchem
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.497
H-Index - 106
eISSN - 1867-3899
pISSN - 1867-3880
DOI - 10.1002/cctc.201600272
Subject(s) - graphitic carbon nitride , photocatalysis , melamine , materials science , stacking , oxalate , chemical engineering , nitride , carbon nitride , ammonium oxalate , specific surface area , carbon fibers , inorganic chemistry , nanotechnology , chemistry , catalysis , organic chemistry , composite material , composite number , layer (electronics) , engineering
A facile strategy to synthesize porous graphitic carbon nitride with stacking nanotubes by thermal condensation of melamine–ammonium oxalate stacking sheets is reported. The photocatalytic generation rate of hydrogen over the porous graphitic carbon nitride (99.7 μmol h −1 ) is nearly 9.5 times as that of pristine g‐C 3 N 4 (10.5 μmol h −1 ). Such enhancement is attributed to the large specific surface area (91.1 m 2 g −1 ), improved visible‐light absorption and efficient separation of photogenerated electrons and holes. The strategy of preparing the porous graphitic carbon nitride with modified melamine as a precursor opens a new gate for the regulation of the morphologies of g‐C 3 N 4 to get higher photocatalytic activity.