UiO-66-NH2/Bi2MoO6复合材料对抗生素的高效吸附及机理分析

IF 9 1区工程技术 Q1 ENGINEERING, CHEMICAL

Separation and Purification Technology Pub Date : 2024-12-04 DOI:10.1016/j.seppur.2024.130818

Ran Tai , Wenlu Xu , Xiang Sui , Xingrui Liu , Changzheng Wang , Qiang Wang

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引用次数: 0

摘要

抗生素在人类和动物健康方面的广泛使用造成了严重的水污染，并增加了微生物耐药性，对人类健康和生态系统构成了风险。本研究采用溶剂热法合成了Bi2MoO6纳米花和UiO-66-NH2八面体（UN-BMO）复合材料，并首次将其应用于抗生素吸附。3 % UN-BMO复合了高吸附能力:37.74 mg·克−1盐酸环丙沙星(HCIP), 31.05 mg·g−1 四环素(TC), 79.86 mg·g−1 阿莫西林(AMX)和85.54 mg·g −1红霉素(EM),吸附率为98.3 %(15 年代),97.6 %(30 min), 84.1 %( 60分钟),和86.4 %(100 min),分别。动力学和等温线模型表明，HCIP吸附包括单层和多层覆盖，是化学和物理过程的混合。TC主要遵循多层物理吸附，而AMX则从低温下的多层物理吸附转变为高温下的单层物理吸附。电磁的特点是单层吸附。热力学分析表明，HCIP、AMX和EM的吸附是吸热的，而TC的吸附是放热的。FTIR和XPS分析证实，HCIP、AMX和EM的吸附主要是π-π相互作用和氢键作用，TC的吸附也涉及静电相互作用。

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Efficient adsorption and mechanism analysis of antibiotics by UiO-66-NH2/Bi2MoO6 composite materials

The widespread use of antibiotics in human and animal health has caused significant water pollution and increased microbial resistance, posing risks to human health and ecosystems. In this study, Bi₂MoO₆ nanoflowers and UiO-66-NH₂ octahedra (UN-BMO) composites were synthesized via a solvothermal method and applied for the first time to antibiotic adsorption. The 3 % UN-BMO composite demonstrated high adsorption capacities: 37.74 mg·g⁻¹ for ciprofloxacin hydrochloride (HCIP), 31.05 mg·g⁻¹ for tetracycline (TC), 79.86 mg·g⁻¹ for amoxicillin (AMX), and 85.54 mg·g⁻¹ for erythromycin (EM), with adsorption rates of 98.3 % (15 s), 97.6 % (30 min), 84.1 % (60 min), and 86.4 % (100 min), respectively. Kinetic and isotherm models indicated that HCIP adsorption involves both monolayer and multilayer coverage, with a mix of chemical and physical processes. TC primarily follows multilayer physical adsorption, while AMX shifts from multilayer physical adsorption at low temperatures to monolayer physical adsorption at higher temperatures. EM is characterized by monolayer adsorption. Thermodynamic analysis revealed that HCIP, AMX, and EM adsorption is endothermic, while TC adsorption is exothermic. FTIR and XPS analyses confirmed that HCIP, AMX, and EM adsorption is dominated by π-π interactions and hydrogen bonding, with TC adsorption also involving electrostatic interactions.

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来源期刊

Separation and Purification Technology 工程技术-工程：化工

CiteScore

14.00

自引率

12.80%

发文量

2347

审稿时长

43 days

期刊介绍： Separation and Purification Technology is a premier journal committed to sharing innovative methods for separation and purification in chemical and environmental engineering, encompassing both homogeneous solutions and heterogeneous mixtures. Our scope includes the separation and/or purification of liquids, vapors, and gases, as well as carbon capture and separation techniques. However, it's important to note that methods solely intended for analytical purposes are not within the scope of the journal. Additionally, disciplines such as soil science, polymer science, and metallurgy fall outside the purview of Separation and Purification Technology. Join us in advancing the field of separation and purification methods for sustainable solutions in chemical and environmental engineering.