Heterostructure-based 3D-CdS/TiO2 nanotubes/Ti: Photoelectrochemical performances and interface simulation investigation
Heterostructure-based 3D-CdS/TiO2 nanotubes/Ti: Photoelectrochemical performances and interface simulation investigation
复制标题
基于异质结构的3D-CdS/TiO2纳米管/Ti：光电化学性能和界面模拟研究
DOI：
10.1016/j.ceramint.2022.08.234
复制
发表时间：
2022-08
影响因子：
5.2
通讯作者：
Bao-Lin Zhu
中科院分区：
文献类型：
--
作者：
Sha-Sha Zhang;Jing Tian;Zhao Yue;Guo-Na Huo;Zhi-Xin Hu;Shou-Min Zhang;Wei-Ping Huang;Bao-Lin Zhu
异质结可以有效地提高电荷分离效率，促进电子转移，产生强烈的光电信号。以3D-TiO2纳米管/钛箔为载体，制备了不同比例的CdS-TiO2异质结电极作为光电化学(PEC)生物传感器，以响应可见光照射，提高了TiO2纳米管的光电化学性能。通过密度泛函理论(DFT)模拟，阐明了硫化镉-二氧化钛纳米管的PEC过程，揭示了硫化镉在促进二氧化钛纳米管上电子-空穴分离方面的重要作用。由于载体的三维管状结构，2 mm的CdS-TiO2纳米管/TiPEC电极在可见光照射下对葡萄糖的检测下限为0.27μM，对葡萄糖的灵敏度为328.87μA·mm−1 cm−2。制备的硫化镉-二氧化钛纳米管/钛生物传感器具有较高的选择性和良好的稳定性，是一种新的生物传感器候选材料。
Heterojunction can effectively improve the charge separation efficiency and facilitate electron transfer, producing a strong photoelectric signal. By using 3D-TiO 2 nanotubes/Ti foil as support, CdS–TiO 2 heterojunction electrodes with different CdS proportions were fabricated as photoelectrochemical (PEC) biosensor to respond the visible irradiation and improve the PEC performance of TiO 2 nanotubes. Density functional theory (DFT) simulation was conducted to clarify the PEC process of CdS–TiO 2 NTs and revealed the important role of CdS in enhancing electron–hole separation on TiO 2 nanotubes. Owing to the 3D tubular structure of the support, 2 mM CdS–TiO 2 nanotubes/Ti PEC electrode exhibited low detection limit of 0.27 μM and good sensitivity of 328.87 μA·mM −1 cm −2 for glucose in the range of 2–9 μM under visible illumination. The fabricated CdS–TiO 2 nanotubes/Ti biosensor also showed high selectivity and good stability, which indicated a new candidate for biosensors.
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影响因子：
3.7
作者：
A. Kaledin;T. Lian;C. Hill;D. Musaev
通讯作者：
A. Kaledin;T. Lian;C. Hill;D. Musaev
DOI：
--
发表时间：
2012
期刊：
--
影响因子：
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作者：
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通讯作者：
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影响因子：
3.7
作者：
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通讯作者：
Furthmuller, J
影响因子：
5.2
作者：
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通讯作者：
A. Fioravanti;S. Morandi;Alberto Rubin Pedrazzo;Claudio Cecone;M. Manzoli;M. Zanetti;P. Bracco;M. Mazzocchi;S. Lettieri;P. Marani;M. Carotta