Reusable and Flexible g-C3N4/Ag3PO4/Polyacrylonitrile Heterojunction Nanofibers for Photocatalytic Dye Degradation and Oxygen Evolution

被引：69
作者：
Tao, Ran [1 ,2 ]
Yang, Shu [1 ,2 ]
Shao, Changlu [1 ]
Li, Xinghua [1 ]
Li, Xiaowei [1 ,2 ]
Liu, Shuai [1 ,2 ]
Zhang, Jian [1 ,2 ]
Liu, Yichun [1 ,2 ]
机构：
[1] Northeast Normal Univ, Minist Educ, Ctr Adv Optoelect Funct Mat Res, Changchun 130024, Jilin, Peoples R China
[2] Northeast Normal Univ, Minist Educ, Key Lab UV Emitting Mat & Technol, Changchun 130024, Jilin, Peoples R China
来源：
ACS APPLIED NANO MATERIALS | 2019年 / 2卷 / 05期
基金：
中国国家自然科学基金; 中国博士后科学基金;
关键词：
g-C3N4/Ag3PO4; heterojunction; nanofibers; flexible photocatalysts; pollutant degradation; oxygen evolution; COMPOSITE PHOTOCATALYST; G-C3N4; NANOSHEETS; HIGH-EFFICIENCY; PERFORMANCE; FABRICATION; HETEROSTRUCTURES; MECHANISM; STABILITY;
D O I：
10.1021/acsanm.9b00428
中图分类号：
TB3 [工程材料学];
学科分类号：
0805 ; 080502 ;
摘要：
Flexible photocatalysts stand out from numerous photocatalysts because of their foldable, reusable, and mechanically stable properties. Here, g-C3N4/Ag3PO4/PAN nanofibers were prepared by immobilizing Ag3PO4 nanoparticles on electrospun g-C3N4/PAN nanofibers through the room-temperature in situ synthesis method. Compared with g-C3N4/PAN and Ag3PO4/PAN, the g-C3N4/Ag3PO4/PAN nanofibers exhibited better photocatalytic performance. The degradation rates of Rhodamine B and tetracycline hydrochloride of g-C3N4/Ag3PO4/PAN nanofibers were 8.8 and 12.9 times higher than those of g-C3N4/PAN nanofibers, while 3.1 and 6.5 times higher than those of Ag3PO4/PAN nanofibers, respectively. In addition, the oxygen evolution rate of g-C3N4/Ag3PO4/PAN nanofibers was 1.9 times better than that of g-C3N4/PAN and 5.8 times better than that of Ag3PO4/PAN. The improved photocatalytic performance of g-C3N4/Ag3PO4/PAN was likely because of the existence of Z-scheme g-C3N4/Ag3PO4 heterojunction with efficient charge separation. Furthermore, g-C3N4/Ag3PO4/PAN nanofibers had a better photochemical stability than Ag3PO4/PAN, which was probably due to the inhibited of Ag3PO4 photocorrosion by the transfer of electrons from Ag3PO4 to g-C3N4. These photocatalysts could be easily separated and reused due to their extra long nanofibrous mat structures and flexible properties. This work provided a new road to design and fabricate flexible self-supporting photocatalysts for pollutants degradation and energy conversion.
引用
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页码：3081 / +
页数：19
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