Ming C. Wu1, Jun‐Min Yan1, Xian‐nian Tang1, Ming Zhao1, Qing Jiang1
1Key Laboratory of Automobile Materials (Ministry of Education), School of Materials Science and Engineering, Jilin University, Changchun, 130022, P. R. China
Tóm tắt
AbstractPotassium‐modified graphitic carbon nitride (K‐g‐C3N4) nanosheets are synthesized by a facile KCl‐template method that holds the advantage of easy removal of residual template. A combination of XRD, X‐ray photoelectron spectroscopy, and inductively coupled plasma analyses are utilized to characterize the obtained resultant K‐g‐C3N4 architectures, which are composed of nanosheets of variable thickness (<10 nm). Photocatalytic hydrogen evolution experiments under visible light irradiation showed that K‐g‐C3N4 nanosheets have high photocatalytic activities (up to about thirteen times higher than that of pure g‐C3N4) as well as good stability (no reduction in activity within 16 h); both features emanate from their unique structural characteristics. These results illustrate the viability of this methodology for the facile synthesis of efficient heterogeneous photocatalysts for potential commercial applications.
