Journal
MATERIALS CHEMISTRY AND PHYSICS
Volume 256, Issue -, Pages -Publisher
ELSEVIER SCIENCE SA
DOI: 10.1016/j.matchemphys.2020.123755
Keywords
G-C3N4; Glyoxylic acid; Photocatalysis; Photodegradation
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Funding
- National Natural Science Foundation of China [21773099]
- Natural Science Foundation of Liaoning Province [20180550097]
- Program of Liaoning Key Laboratory of Semiconductor Light Emitting and Photocatalytic Materials
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A new precursor was developed for the preparation of graphitic carbon nitride (g-C3N4) with a large specific surface area and N vacancies. The SEM and TEM results show that the obtained samples have porous nanosheet structure, XPS, EPR and UV-Vis spectra indicate N vacancy defects existed in the g-C3N4. During the synthesis process, glyoxylic acid inhibited the condensation of melamine, thus increasing the porosity of g-C3N4, generating abundant defects, and improving yield. Under light irradiation, g-C3N4 samples prepared by glyoxylic acid mediated melamine shown enhanced photocatalytic activities in gaseous organic pollution photodegradation. This study developed a potential agent for producing inexpensive and highly active g-C3N4 photocatalysts.
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