Insight into efficient removal of tetracycline from water by Fe–Si–B amorphous alloys

IF 3.5 3区材料科学 Q1 MATERIALS SCIENCE, CERAMICS Journal of Non-crystalline Solids Pub Date : 2025-01-02 DOI:10.1016/j.jnoncrysol.2024.123377

Jing Wei , Zhigang Zheng , Zhaoguo Qiu , Dechang Zeng

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Abstract

The removal efficiency of tetracycline (TC) by Fe-based amorphous (Fe^am) alloy was investigated through batch experiments, examining the effects of TC concentration, initial pH, and environmental temperature on its removal performance. The experimental results indicate that Fe^am, owing to its amorphous structure and excellent catalytic properties, has a TC removal rate that is 2.75 times greater than that of zero-valent iron (ZVI) powder. Within the range of initial pH values from 4 to 7, the degradation efficiency for TC remains high, with nearly all removal rates reaching 99 % after 30 min of treatment. The results suggest that the removal process is primarily attributed to adsorption (by Fe⁰ and its corrosion products) and reduction. The pH significantly influences the formation of iron corrosion products and the variations in TC species. The reactive adsorbed Fe²⁺ plays a crucial role in the removal process. In addition to demonstrating effective removal capabilities for TC, Fe^am also exhibits excellent removal performance for oxytetracycline (OTC) hydrochloride and chlorotetracycline (CTC) hydrochloride, underscoring its broad applicability among tetracycline antibiotics. In summary, this study provides a novel approach for the removal of tetracycline antibiotics from water.

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Fe-Si-B非晶合金有效去除水中四环素的研究

通过批量实验考察了铁基非晶合金（Feam）对四环素（TC）的去除效果，考察了TC浓度、初始pH和环境温度对其去除效果的影响。实验结果表明，Feam由于其无定形结构和优异的催化性能，其对TC的去除率是零价铁（ZVI）粉末的2.75倍。在初始pH值为4 ~ 7的范围内，对TC的降解效率保持较高，处理30 min后几乎全部去除率达到99%。结果表明，去除过程主要是由Fe0及其腐蚀产物吸附和还原引起的。pH值显著影响铁腐蚀产物的形成和TC种类的变化。反应吸附的Fe2+在去除过程中起着至关重要的作用。除了对TC的有效去除能力外，Feam对盐酸土霉素（OTC）和盐酸氯四环素（CTC）也表现出优异的去除效果，表明其在四环素类抗生素中的广泛适用性。总之，本研究为水中四环素类抗生素的去除提供了一种新的途径。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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公司名称

产品信息

阿拉丁

1,10-phenanthroline

阿拉丁

Tertbutanol (TBA)

来源期刊

Journal of Non-crystalline Solids 工程技术-材料科学：硅酸盐

CiteScore

6.50

自引率

11.40%

发文量

576

审稿时长

35 days

期刊介绍： The Journal of Non-Crystalline Solids publishes review articles, research papers, and Letters to the Editor on amorphous and glassy materials, including inorganic, organic, polymeric, hybrid and metallic systems. Papers on partially glassy materials, such as glass-ceramics and glass-matrix composites, and papers involving the liquid state are also included in so far as the properties of the liquid are relevant for the formation of the solid. In all cases the papers must demonstrate both novelty and importance to the field, by way of significant advances in understanding or application of non-crystalline solids; in the case of Letters, a compelling case must also be made for expedited handling.