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Layer Stacked Iodine and Phosphorus Co‐doped C 3 N 4 for Enhanced Visible‐Light Photocatalytic Hydrogen Evolution
Author(s) -
Huang Yuqing,
Yan Qing,
Yan Haijing,
Tang Yunqi,
Chen Shuai,
Yu Zheying,
Tian Chungui,
Jiang Baojiang
Publication year - 2017
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.201700786
Subject(s) - photocatalysis , materials science , carbon nitride , visible spectrum , nitride , doping , hydrogen production , absorption (acoustics) , band gap , stacking , inorganic chemistry , water splitting , carbon fibers , graphitic carbon nitride , phosphorus , hydrogen , photochemistry , chemical engineering , catalysis , nanotechnology , layer (electronics) , chemistry , optoelectronics , organic chemistry , composite material , composite number , engineering , metallurgy
Hetero‐element doping is one of the most effective methods for band gap regulation of semiconductor photocatalysts. Here, a novel layer stacking of iodine and phosphorus co‐doped carbon nitride (I/P‐CN) was prepared from a novel supramolecular precursor. The obtained I/P‐CN exhibits significantly enhanced visible‐light photocatalytic hydrogen production (93.9 μmol h −1 ) compared with bulk carbon nitride. Moreover, it reveals a consistent cycle stability for photocatalytic application. The marked improvement in photocatalytic activity is the result of iodine and phosphorus co‐doping bringing about a decrease in the band gap and an increase of absorption intensity and width. The unique layer in the stacking structure facilitates an increase in specific surface area and active reaction sites. Our research opens up a new strategy to synthesize multiple elements co‐doped carbon nitride as a promising metal‐free photocatalyst for hydrogen evolution under visible light.