TY - JOUR
T1 - Construction of stable Ta 3 N 5 /g-C 3 N 4 metal/non-metal nitride hybrids with enhanced visible-light photocatalysis
AU - Jiang, Yinhua
AU - Liu, Peipei
AU - Chen, Ye Cheng
AU - Zhou, Zhengzhong
AU - Yang, Haijian
AU - Hong, Yuanzhi
AU - Li, Fan
AU - Ni, Liang
AU - Yan, Yongsheng
AU - Gregory, Duncan H.
N1 - Funding Information:
This research was sponsored by the National Basic Research Program of China ( 21576214 , 21175061 and 31470434 ), Research Foundation for Advanced Talents of Jiangsu University ( 10JDG142 ) and Special Financial Grant from the China Postdoctoral Science Foundation ( 2014T70488 ).
Funding Information:
This research was sponsored by the National Basic Research Program of China (21576214, 21175061 and 31470434), Research Foundation for Advanced Talents of Jiangsu University (10JDG142) and Special Financial Grant from the China Postdoctoral Science Foundation (2014T70488).
Publisher Copyright:
© 2016 Elsevier B.V.
PY - 2017/1/1
Y1 - 2017/1/1
N2 - In this paper, a novel Ta 3 N 5 /g-C 3 N 4 metal/non-metal nitride hybrid was successfully synthesized by a facile impregnation method. The photocatalytic activity of Ta 3 N 5 /g-C 3 N 4 hybrid nitrides was evaluated by the degradation of organic dye rhodamine B (RhB) under visible light irradiation, and the result indicated that all Ta 3 N 5 /g-C 3 N 4 samples exhibited distinctly enhanced photocatalytic activities for the degradation of RhB than pure g-C 3 N 4 . The optimal Ta 3 N 5 /g-C 3 N 4 composite sample, with Ta 3 N 5 mass ratio of 2%, demonstrated the highest photocatalytic activity, and its degradation rate constant was 2.71 times as high as that of pure g-C 3 N 4 . The enhanced photocatalytic activity of this Ta 3 N 5 /g-C 3 N 4 metal/metal-free nitride was predominantly attributed to the synergistic effect which increased visible-light absorption and facilitated the efficient separation of photoinduced electrons and holes. The Ta 3 N 5 /g-C 3 N 4 hybrid nitride exhibited excellent photostability and reusability. The possible mechanism for improved photocatalytic performance was proposed. Overall, this work may provide a facile way to synthesize the highly efficient metal/metal-free hybrid nitride photocatalysts with promising applications in environmental purification and energy conversion.
AB - In this paper, a novel Ta 3 N 5 /g-C 3 N 4 metal/non-metal nitride hybrid was successfully synthesized by a facile impregnation method. The photocatalytic activity of Ta 3 N 5 /g-C 3 N 4 hybrid nitrides was evaluated by the degradation of organic dye rhodamine B (RhB) under visible light irradiation, and the result indicated that all Ta 3 N 5 /g-C 3 N 4 samples exhibited distinctly enhanced photocatalytic activities for the degradation of RhB than pure g-C 3 N 4 . The optimal Ta 3 N 5 /g-C 3 N 4 composite sample, with Ta 3 N 5 mass ratio of 2%, demonstrated the highest photocatalytic activity, and its degradation rate constant was 2.71 times as high as that of pure g-C 3 N 4 . The enhanced photocatalytic activity of this Ta 3 N 5 /g-C 3 N 4 metal/metal-free nitride was predominantly attributed to the synergistic effect which increased visible-light absorption and facilitated the efficient separation of photoinduced electrons and holes. The Ta 3 N 5 /g-C 3 N 4 hybrid nitride exhibited excellent photostability and reusability. The possible mechanism for improved photocatalytic performance was proposed. Overall, this work may provide a facile way to synthesize the highly efficient metal/metal-free hybrid nitride photocatalysts with promising applications in environmental purification and energy conversion.
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U2 - 10.1016/j.apsusc.2016.04.094
DO - 10.1016/j.apsusc.2016.04.094
M3 - Article
AN - SCOPUS:84964884660
SN - 0169-4332
VL - 391
SP - 392
EP - 403
JO - Applied Surface Science
JF - Applied Surface Science
ER -