Article ID | Journal | Published Year | Pages | File Type |
---|---|---|---|---|
6968886 | Journal of Hazardous Materials | 2018 | 41 Pages |
Abstract
A series of hollow structure lantern-like Eu(III)-doped g-C3N4 (xEu-CN, xâ¯=â¯1, 2, 3) was firstly synthesized by heating a mixture of melamine, HNO3 and Eu2O3 at 500â¯Â°C for 2â¯h. The phase, morphology and optical properties of the serial xEu-CN samples were characterized by different techniques, including TEM, XRD, FT-IR, SEM, XPS, BET, UV-vis, PL, photocurrent, and EIS. The results indicated that Eu doping extraordinarily enhanced the photocatalytic activity of pure g-C3N4, and the 2Eu-CN exhibited the highest photocatalytic performance with a 98% (82%) degradation rate for RhB (TC), 6.03 (1.71)-fold of pure g-C3N4(CN). The higher photocatalytic efficiency is ascribed to the synergy effect of Eu(III) and the hollow structures, which led to a larger surface specific area, bandgap narrowing, enhanced light harvesting ability and efficient charge separation.
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Authors
Min Wang, Pengyao Guo, Yu Zhang, Chunmei Lv, Tingyu Liu, Tianyu Chai, Yuanhua Xie, Youzhao Wang, Tong Zhu,