Degradation of antibiotic oxytetracycline using surface reconstituted TiO2 photocatalyst

被引：1

作者：

You, Chan-Seo ^{[1
]}

Noh, Jun-Young ^{[1
]}

Choi, Yunju ^{[2
]}

Jung, Sang-Chul ^{[1
]}

机构：

[1] Sunchon Natl Univ, Dept Environm Engn, 255 Jungang Ro, Sunchon 57922, Jeonnam, South Korea

[2] Korea Basic Sci Inst, Busan Ctr, Pusan 46742, South Korea

来源：

APPLIED SURFACE SCIENCE | 2025年 / 687卷

基金：

新加坡国家研究基金会;

关键词：

Oxytetracycline; Tb/Cu doped TiO2 photocatalyst; Liquid-phase plasma: Oxygen vacancies; Photocatalyst reusability; DOPED TIO2; OPTICAL-PROPERTIES; NANOPARTICLES; EMISSION;

D O I：

10.1016/j.apsusc.2024.162244

中图分类号：

O64 [物理化学（理论化学）、化学物理学];

学科分类号：

070304 ; 081704 ;

摘要：

In this study, we successfully developed a photocatalyst that can respond to visible light and exhibit excellent activity by doping terbium and copper simultaneously into TiO2 powder using the liquid phase plasma method. When Tb/Cu doped TiO2 photocatalyst (TCTP) was used as a visible light source, the degradation rate increased by up to three times compared with that of bare TiO2. In the case of co-doped TiO2, an apparent synergistic effect of co-doping was confirmed compared to the single-component doping of Tb or Cu. The absorption edge moved to the visible light region owing to simultaneous doping with Tb and Cu, and the greatest bandgap energy reduction was achieved. In addition, Tb and Cu doping induced more oxygen vacancies, reducing the electron-hole recombination rate by forming a charge imbalance. This is believed to improve photocatalytic activity by adsorbing more oxygen molecules and inducing the formation of active radicals. The optimal Tb-Cu doping ratio in this study was confirmed to be 1:1, and it can be used as a potential photocatalyst that can be activated by all light sources, including UV and visible light.

引用

页数：11

共 53 条

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