LIU Xin, LI Jiake, LI Yanyan
(School of Material Science and Engineering, Jingdezhen Ceramic Institute, Jingdezhen 333403, Jiangxi, china)
Abstract: Fe3+ doped graphite-like carbon nitride (Fe3+/g-C3N4) was prepared by pyrolysis method using Fe(NO3)3 and C3H6N6 as raw materials. The samples were characterized by XRD, SEM, BET, UV-Vis and other analytical methods. The photocatalytic activity of the samples was evaluated using methylene blue solution as model pollutant. The results show that Fe3+ doping was beneficial to increase the specific surface area of g-C3N4, reduce the band gap energy and improve the absorption of visible light. Fe3+/g-C3N4 has the best photocatalytic activity when Fe3+ doping content was 0.3wt.%. The degradation rate of methylene blue was 83.7%, 44.6% higher than that of pure g-C3N4.
Key words: g-C3N4; doped; pyrolysis; photocatalytic performance