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Modifying Crystallinity, Morphology, and Photophysical Properties of Carbon Nitride by Using Crystals as Reactants
Author(s) -
Azoulay Adi,
Barrio Jesús,
Shalom Menny
Publication year - 2020
Publication title -
israel journal of chemistry
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.908
H-Index - 54
eISSN - 1869-5868
pISSN - 0021-2148
DOI - 10.1002/ijch.201900056
Subject(s) - crystallinity , carbon nitride , chemistry , calcination , morphology (biology) , nitride , graphitic carbon nitride , carbon fibers , chemical engineering , ampoule , nanotechnology , photocatalysis , layer (electronics) , crystallography , materials science , composite material , organic chemistry , composite number , catalysis , biology , engineering , genetics
Here we show a general method to improve the crystallinity of carbon nitride nanosheets by using melamine crystals as reactants for the high temperature synthesis. Additionally, the crystals were calcined in a sealed ampoule, which provides a pressurized environment, yielding crystalline carbon nitride nanosheets that display altered morphology and photophysical properties compared to the reference materials. Electronic microscopy, optical and photoelectrochemical measurements prove the modifications of parameters such like band structure, charge recombination or inter‐layer distance. The new growth strategy presented here opens many opportunities for the design of crystalline materials with tailored properties for different applications.