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Graphitic Carbon Nitride Nanorods for Photoelectrochemical Sensing of Trace Copper(II) Ions
Author(s) -
Xu Li,
Xia Jiexiang,
Wang Leigang,
Ji Haiyan,
Qian Jing,
Xu Hui,
Wang Kun,
Li Huaming
Publication year - 2014
Publication title -
european journal of inorganic chemistry
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.667
H-Index - 136
eISSN - 1099-0682
pISSN - 1434-1948
DOI - 10.1002/ejic.201402051
Subject(s) - nanorod , graphitic carbon nitride , photocurrent , chemistry , nanosheet , metal ions in aqueous solution , hydrothermal circulation , copper , hydrothermal synthesis , carbon nitride , carbon fibers , photocatalysis , absorption (acoustics) , ion , inorganic chemistry , nanotechnology , chemical engineering , materials science , optoelectronics , catalysis , organic chemistry , biochemistry , composite number , engineering , composite material
A metal‐free polymeric material, graphitic carbon nitride (g‐C 3 N 4 ) nanorods, has been designed for photoelectrochemical detection of copper(II) ions. The g‐C 3 N 4 nanorods have been fabricated by means of hydrothermally treated bulk g‐C 3 N 4 using NH 4 Cl. The crystalline structure and the core chemical skeleton of g‐C 3 N 4 do not alter after hydrothermal treatment using NH 4 Cl. The morphology of g‐C 3 N 4 is changed from nanosheet to nanorod after hydrothermal treatment. The g‐C 3 N 4 nanorods possess significant advantages of enhanced light absorption and charge separation, thereby resulting in an improvement in the photocurrent intensity. A photoelectrochemical sensor has been developed based on the g‐C 3 N 4 nanorods. The results show that the designed sensor has high sensitivity as well as good selectivity for Cu 2+ detection. The photoelectrochemical sensor provides a promising method for monitoring metal ions and opens a new avenue for the applications of g‐C 3 N 4 nanorods.