Effects of BixOyIz Self-Combination and Integration With Magnetic CoFe2O4 on the Enhanced Removal Efficiencies for Tetracycline Residues

IF 3.7 2区化学 Q2 CHEMISTRY, APPLIED

Applied Organometallic Chemistry Pub Date : 2024-08-24 DOI:10.1002/aoc.7687

Mei Zhao, Cuiyan Tan, Mengchen Liu, Ye Wang, Haoran Ren, Xinyu Yu, Zhihua Zhang, Wenjun Wang, Chengdong Li

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Abstract

The Bi_xO_yI_z and CoFe₂O₄ combination enhances photocatalytic degradation of tetracyclines (TCs). Three TC antibiotics including TC, oxytetracycline (OTC), and chlortetracycline (CTC) with high concentration (50 mg L⁻¹) were utilized as target pollutant. Bi₅O₇I/Bi₄O₅I₂, with its Z-scheme, improves removal efficiency to 1.6 times that of Bi₅O₇I and 1.4 times that of Bi₄O₅I₂. Ternary Bi₅O₇I/Bi₄O₅I₂/CoFe₂O₄ (I/I/Co) composites further increase efficiency, with I/I/Co-2 achieving 1.6 times that of I/I-2. The improved performance is due to an optimized microstructure, which promotes light absorption and carrier transfer. CoFe₂O₄ nanoparticles on nanosheets create a double-Z band structure, enhancing redox activity. Radical trapping experiments indicated the major active species (•O₂⁻, OH⁻, and h⁺) in photocatalytic process of I/I/Co-2. Based on their enhanced removal efficiencies for high-concentration TCs, proper magnetic separation capacity, and recycling performance, the practical applications of I/I/Co composites to treat real TC wastewater might be implemented.

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BixOyIz 自结合及与磁性 CoFe2O4 结合对提高四环素残留物去除率的影响

BixOyIz 和 CoFe2O4 的组合增强了对四环素（TCs）的光催化降解。目标污染物是三种四环素类抗生素，包括四环素、土霉素（OTC）和高浓度（50 mg L-1）金霉素（CTC）。具有 Z 型结构的 Bi5O7I/Bi4O5I2 可将去除效率提高到 Bi5O7I 的 1.6 倍和 Bi4O5I2 的 1.4 倍。Bi5O7I/Bi4O5I2/CoFe2O4 (I/I/Co) 三元复合材料进一步提高了效率，I/I/Co-2 是 I/I-2 的 1.6 倍。性能的提高得益于优化的微观结构，这种结构促进了光的吸收和载流子的转移。纳米片上的 CoFe2O4 纳米颗粒形成了双 Z 带结构，提高了氧化还原活性。自由基捕获实验表明了 I/I/Co-2光催化过程中的主要活性物种（-O2-、OH- 和 h+）。基于 I/I/Co 复合材料对高浓度三氯甲烷的更高去除率、适当的磁分离能力和回收利用性能，可以实际应用 I/I/Co 复合材料来处理实际的三氯甲烷废水。

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来源期刊

Applied Organometallic Chemistry 化学-无机化学与核化学

CiteScore

7.80

自引率

10.30%

发文量

408

审稿时长

2.2 months

期刊介绍： All new compounds should be satisfactorily identified and proof of their structure given according to generally accepted standards. Structural reports, such as papers exclusively dealing with synthesis and characterization, analytical techniques, or X-ray diffraction studies of metal-organic or organometallic compounds will not be considered. The editors reserve the right to refuse without peer review any manuscript that does not comply with the aims and scope of the journal. Applied Organometallic Chemistry publishes Full Papers, Reviews, Mini Reviews and Communications of scientific research in all areas of organometallic and metal-organic chemistry involving main group metals, transition metals, lanthanides and actinides. All contributions should contain an explicit application of novel compounds, for instance in materials science, nano science, catalysis, chemical vapour deposition, metal-mediated organic synthesis, polymers, bio-organometallics, metallo-therapy, metallo-diagnostics and medicine. Reviews of books covering aspects of the fields of focus are also published.