Hierarchical CoTiO3@NiO core-shell sub-microbelts as direct Z-scheme photocatalyst for efficient visible-light-driven tetracycline degradation
Hierarchical CoTiO3@NiO core-shell sub-microbelts as direct Z-scheme photocatalyst for efficient visible-light-driven tetracycline degradation
复制标题
分层CoTiO3@NiO核壳亚微带作为直接Z型光催化剂，用于高效可见光驱动的四环素降解
DOI：
10.1016/j.apsusc.2020.148892
复制
发表时间：
2021-02-07
影响因子：
6.7
通讯作者：
Li，Qiubo
中科院分区：
文献类型：
--
作者：
Yang，Qian;Guo，Enyan;Li，Qiubo
The hierarchical binary 1D@2D CoTiO3@NiO Z-scheme heterojunctions with well-defined core–shell feature display the enhanced photocatalytic activity for antibiotic tetracycline decomposition under visible light illumination. The obtained CoTiO3@NiO heterostructured sub-microbelts show a superior photocatalytic efficiency to the pristine CoTiO3sub-microbelts, and NiO nanoclusters. The TC removal efficiency of CoTiO3@NiO sub-microbelts is 1.75 and 2.15 times higher than that of pristine CoTiO3, and NiO, respectively. The electrospinning CoTiO3sub-microbelts are decorated uniformly with in situ nanosheets of NiO longitudinally aligned through a facile two-step precipitation-calcination processure. The Z-scheme heterojunctions consisting of CoTiO3and NiO efficiently accelerate photo-generated electron-hole separation efficiency, and afford a high specific surface area, which ultimately improve the efficiency of TC degradation. The profitable carrier transmission mechanism and special core–shell structure in the CoTiO3@NiO system are in charge of the elevated catalytic activity because of the formed Z-scheme system. These features demonstrate that the hierarchical CoTiO3@NiO core–shell heterojunctions have the great application potential for tetracycline removal from wastewater.
