caa a22 4500 606195998 CHVBK 20210128100922.0 cr unu---uuuuu 210128e20151001xx s 000 0 eng 10.1007/s10934-015-0018-6 doi (NATIONALLICENCE)springer-10.1007/s10934-015-0018-6 High temperature promoted synthesis of graphitic carbon nitride with porous structure and enhanced photocatalytic activity [Elektronische Daten] [Lei Shi, Tao Liang, Lin Liang, Fangxiao Wang, Mengshuai Liu, Jianmin Sun] Graphitic carbon nitride (g-C3N4) was prepared by the polycondensation of melamine at 650°C for 2h, then thoroughly characterized by X-ray diffraction, Fourier transform infrared spectroscopy, X-ray photoelectron spectroscopy, elemental analysis, transmission electron microscopy, N2 adsorption-desorption isotherms, UV-Vis diffuse reflectance spectra and photoluminescence spectra. The photocatalytic activity of g-C3N4 catalyst was evaluated by the degradation of Rhodamine B, Methylene blue and phenol solution under visible-light irradiation, which showed that g-C3N4 calcined at 650°C increased the degree of condensation, thus led to the decreased band gap and exhibited better photocatalytic activity than the referencesample treated at 520°C and P25. The integrated positive effects of porous structure, larger surface area, stronger visible-light absorption and higher separation efficiency for photoinduced electron-hole pairs over g-C3N4 treated at 650°C resulted in its improved photocatalytic activity for degrading pollutants. Additionally, the as-prepared g-C3N4 possessed good structural and catalytic stability afterthree recycles. Springer Science+Business Media New York, 2015 Graphitic carbon nitride nationallicence Higher temperature nationallicence Photocatalyst nationallicence Porous structure nationallicence Visible light nationallicence Dye nationallicence Shi Lei The Academy of Fundamental and Interdisciplinary Science, Harbin Institute of Technology, 150080, Harbin, China aut Liang Tao The Academy of Fundamental and Interdisciplinary Science, Harbin Institute of Technology, 150080, Harbin, China aut Liang Lin School of Life Science and Technology, Harbin Institute of Technology, 150080, Harbin, China aut Wang Fangxiao The Academy of Fundamental and Interdisciplinary Science, Harbin Institute of Technology, 150080, Harbin, China aut Liu Mengshuai The Academy of Fundamental and Interdisciplinary Science, Harbin Institute of Technology, 150080, Harbin, China aut Sun Jianmin State Key Laboratory of Urban Water Resource and Environment, Harbin Institute of Technology, 150080, Harbin, China aut Journal of Porous Materials Springer US; http://www.springer-ny.com 22/5(2015-10-01), 1393-1399 1380-2224 22:5<1393 2015 22 10934 https://doi.org/10.1007/s10934-015-0018-6 text/html Onlinezugriff via DOI BK010053 XK010053 XK010000 Metadata rights reserved Springer special CC-BY-NC licence nationallicence 1 research-article jats NATIONALLICENCE NATIONALLICENCE NL-springer NATIONALLICENCE 856 40 https://doi.org/10.1007/s10934-015-0018-6 text/html Onlinezugriff via DOI NATIONALLICENCE 700 1- Shi Lei The Academy of Fundamental and Interdisciplinary Science, Harbin Institute of Technology, 150080, Harbin, China aut NATIONALLICENCE 700 1- Liang Tao The Academy of Fundamental and Interdisciplinary Science, Harbin Institute of Technology, 150080, Harbin, China aut NATIONALLICENCE 700 1- Liang Lin School of Life Science and Technology, Harbin Institute of Technology, 150080, Harbin, China aut NATIONALLICENCE 700 1- Wang Fangxiao The Academy of Fundamental and Interdisciplinary Science, Harbin Institute of Technology, 150080, Harbin, China aut NATIONALLICENCE 700 1- Liu Mengshuai The Academy of Fundamental and Interdisciplinary Science, Harbin Institute of Technology, 150080, Harbin, China aut NATIONALLICENCE 700 1- Sun Jianmin State Key Laboratory of Urban Water Resource and Environment, Harbin Institute of Technology, 150080, Harbin, China aut NATIONALLICENCE 773 0- Journal of Porous Materials Springer US; http://www.springer-ny.com 22/5(2015-10-01), 1393-1399 1380-2224 22:5<1393 2015 22 10934