Ta3N5/CdS Core-Shell S-scheme Heterojunction Nanofibers for Efficient Photocatalytic Removal of Antibiotic Tetracycline and Cr(VI): Performance and Mechanism Insights

被引：381

作者：

Li, Shijie ^{[1
,2
]}

Cai, Mingjie ^{[1
,2
]}

Wang, Chunchun ^{[1
,2
]}

Liu, Yanping ^{[1
,2
]}

机构：

[1] Zhejiang Ocean Univ, Coll Marine Sci & Technol, Natl Engn Res Ctr Marine Aquaculture, Key Lab Hlth Risk Factors Seafood Zhejiang Prov, Zhoushan 316022, Zhejiang, Peoples R China

[2] Zhejiang Ocean Univ, Inst Innovat & Applicat, Zhoushan 316022, Zhejiang, Peoples R China

来源：

ADVANCED FIBER MATERIALS | 2023年 / 5卷 / 03期

基金：

中国国家自然科学基金;

关键词：

Ta3N5; CdS; Electrospinning; S-scheme heterojunction; Core-shell hetero-structure; Cr(VI) reduction; Antibiotic degradation; NANOPARTICLES; EVOLUTION; OXIDATION; TIO2;

D O I：

10.1007/s42765-022-00253-5

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

Ta3N5/CdS core-shell S-scheme heterojunction nanofibers are fabricated by in situ growing CdS nanodots on Ta3N5 nanofibers via a simple wet-chemical method. These Ta3N5/CdS nanofibers not only affords superior photocatalytic tetracycline degradation and mineralization performance, but also cause an efficient photocatalytic Cr(VI) reduction performance. The creation of favorable core-shell fiber-shaped S-scheme hetero-structure with tightly contacted interface and the maximum interface contact area promises the effective photo-carrier disintegration and the optimal photo-redox capacity synchronously, thus leading to the preeminent photo-redox ability. Some critical environmental factors on the photo-behavior of Ta3N5/CdS are also evaluated in view of the complexity of the authentic aquatic environment. The degradation products of tetracycline were confirmed by HPLC-MS analyses. Furthermore, the effective decline in eco-toxicity of TC intermediates is confirmed by QSAR calculation. This work provides cutting-edge guidelines for the design of high-performance Ta3N5-based S-scheme heterojunction nanofibers for environment restoration.

引用

页码：994 / 1007

页数：14

共 79 条

[1] Construction of Bi2S3/TiO2/MoS2 S-Scheme Heterostructure with a Switchable Charge Migration Pathway for Selective CO2 Reduction [J].