Morphological effect of TiO2 nanoparticles in TiO2/g-C3N4 heterojunctions on photocatalytic dye degradation

被引：0
|
作者：
Deng, Zijian [1 ]
Osuga, Ryota [2 ]
Matsubara, Masaki [1 ,3 ]
Kanie, Kiyoshi [1 ,3 ]
Muramatsu, Atsushi [1 ,3 ]
机构：
[1] Tohoku Univ, Inst Multidisciplinary Res Adv Mat, 2-1-1 Katahira, Sendai, Miyagi 9808577, Japan
[2] Hokkaido Univ, Inst Catalysis, Kita 21,Nishi 10,Kita Ku, Sapporo, Hokkaido 0010021, Japan
[3] Tohoku Univ, Int Ctr Synchrotron Radiat Innovat Smart, 2-1-1 Katahira, Sendai, Miyagi 9808577, Japan
来源：
CHEMISTRY LETTERS | 2024年 / 53卷 / 09期
基金：
日本学术振兴会; 日本科学技术振兴机构;
关键词：
morphological effect; photocatalytic dye degradation; TiO2/g-C3N4; heterojunction; GEL-SOL METHOD; ANATASE TIO2; PHOTOREACTIVITY; NANOCRYSTALS; PERFORMANCE; NANOSHEETS; FACETS; G-C3N4; WATER; SHAPE;
D O I：
10.1093/chemle/upae171
中图分类号：
O6 [化学];
学科分类号：
0703 ;
摘要：
The effects of TiO2 nanoparticle (NP) morphology on the photocatalytic activity of physically assembled TiO2 NP/g-C3N4 heterojunctions (TCNPHY) were investigated. Spherical, spindle, and cubic TiO(2 )NPs were synthesized and separately supported on g-C(3)N(4 )nanosheets to form physically assembled TCNPHY catalysts. The photocatalytic activity for methylene blue degradation observed for TCNPHY with the cubic TiO2 NPs supported higher light absorption and a lower recombination rate; therefore, this was an adequate catalyst for the construction of catalytically active heterojunctions. The cubic TiO2 TCNPHY exhibited a degradation rate that was 2.2 times higher than that for the g-C3N4 nanosheets alone.
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页数：4
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