利用过硫酸盐氧化法增强生物可降解微塑料与四环素的相互作用。

IF 2 4区 环境科学与生态学 Q3 ENVIRONMENTAL SCIENCES
Environmental Technology Pub Date : 2025-09-01 Epub Date: 2025-05-22 DOI:10.1080/09593330.2025.2505245
Jianhua Ge, Qiya Jiang, Xiabin Xin, Qiong Huang, Xinru Yang, Dan Liu
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引用次数: 0

摘要

可生物降解微塑料与污染物的相互作用近年来引起了广泛关注。然而,对氧化过程中相互作用的研究是有限的。本文研究了聚羟基烷酸酯微塑料(PHA-MPs)与四环素(TC)在过硫酸盐基氧化体系下的相互作用过程。表征结果表明,过硫酸盐氧化过程不仅改变了PHA-MPs的表面形貌,而且产生了许多含氧官能团。同时,通过2D-COS分析,明确了PHA-MPs中官能团的氧化序列。pH = 7时,PHA-MPs的吸附量最大,高盐度抑制了吸附量,而Co(II)、Ni(II)和Cu(II)的加入可显著提高吸附量。吸附动力学符合拟二级动力学模型,吸附等温过程符合Freundlich模型,属于多层吸附。上述结果有助于进一步评价可生物降解MPs与有机污染物复合污染的风险。
本文章由计算机程序翻译,如有差异,请以英文原文为准。
Enhanced the interaction of biodegradable microplastics with tetracycline by persulfate oxidation process.

The interaction of biodegradable microplastics with pollutants has raised widespread public attention recently. However, investigation on the interaction under oxidation process is limited. In this study, the interaction process of polyhydroxyalkanoates microplastics (PHA-MPs) with tetracycline (TC) under persulfate-based oxidation systems was investigated. Characterization results indicated that persulfate oxidation process not only changed the surface morphology of PHA-MPs, but also produced many oxygen-containing functional groups. Meanwhile, through the application of 2D-COS analysis, the oxidation sequence of functional groups in PHA-MPs was clearly identified. The adsorption capacity of PHA-MPs was maximized at pH = 7, and high salinity inhibited the adsorption capacity, while the addition of Co(II), Ni(II), and Cu(II) could significantly promote the adsorption capacity. In addition, the adsorption kinetics fitted well with the pseudo-second-order kinetic model, and the adsorption isothermal process followed the Freundlich model, which was belonging to multi-layer adsorption. The above results were helpful to further assess the risks associated with the combined pollution of biodegradable MPs and organic pollutants.

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来源期刊
Environmental Technology
Environmental Technology 环境科学-环境科学
CiteScore
6.50
自引率
3.60%
发文量
0
审稿时长
4 months
期刊介绍: Environmental Technology is a leading journal for the rapid publication of science and technology papers on a wide range of topics in applied environmental studies, from environmental engineering to environmental biotechnology, the circular economy, municipal and industrial wastewater management, drinking-water treatment, air- and water-pollution control, solid-waste management, industrial hygiene and associated technologies. Environmental Technology is intended to provide rapid publication of new developments in environmental technology. The journal has an international readership with a broad scientific base. Contributions will be accepted from scientists and engineers in industry, government and universities. Accepted manuscripts are generally published within four months. Please note that Environmental Technology does not publish any review papers unless for a specified special issue which is decided by the Editor. Please do submit your review papers to our sister journal Environmental Technology Reviews at http://www.tandfonline.com/toc/tetr20/current
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