Evaluation of ciprofloxacin (CIP) and clarithromycin (CLA) adsorption with weathered PVC microplastics.

IF 1.9 4区环境科学与生态学 Q4 ENGINEERING, ENVIRONMENTAL

Journal of Environmental Science and Health Part A-toxic\/hazardous Substances & Environmental Engineering Pub Date : 2023-01-01 DOI:10.1080/10934529.2023.2198475

Duygu Osman, İbrahim Uyanık, Hamdi Mıhçıokur, Oktay Özkan

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引用次数: 1

Abstract

The sorption kinetics of two of the most frequently used antibiotics onto recycled (weathered) polyvinyl chloride (PVC) was investigated, using Freundlich and Langmuir isotherm models. Various experimental conditions were set, including pH, contact time, rotational speed, temperature, and initial concentration. The batch experimental results indicated that Freundlich model was better fitted than Langmuir (R²: 98.7 and 84.7, for CIP and CLA respectively). Maximum adsorption capacity is 45.9 mg/g and 22.0 mg/g for CIP and CLA, respectively. Enthalpy (ΔH), and entropy (ΔS) values were negative for CIP, indicating that the reaction was exothermic and spontaneous, respectively. It was vice versa for CLA. Field emission scanning electron microscope (FESEM) and Fourier transform infrared spectrometer (FT-IR) analysis confirmed the physical adsorption mechanism. The results demonstrated that the recycled PVC microplastic has a good capacity for adsorption for both antibiotics.

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风化聚氯乙烯微塑料吸附环丙沙星(CIP)和克拉霉素(CLA)的性能评价。

采用Freundlich和Langmuir等温模型，研究了两种最常用的抗生素在再生聚氯乙烯(PVC)上的吸附动力学。设置了pH、接触时间、转速、温度、初始浓度等实验条件。批量实验结果表明，Freundlich模型的拟合优于Langmuir模型(R2分别为98.7和84.7)。对CIP和CLA的最大吸附量分别为45.9 mg/g和22.0 mg/g。CIP的焓(ΔH)和熵(ΔS)值均为负，表明该反应为放热反应，为自发反应。CLA的情况正好相反。场发射扫描电镜(FESEM)和傅里叶变换红外光谱仪(FT-IR)分析证实了物理吸附机理。结果表明，再生聚氯乙烯微塑料对两种抗生素均有良好的吸附能力。

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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来源期刊

$Journal of Environmental Science and Health Part A-toxic\/hazardous Substances & Environmental Engineering$

Journal of Environmental Science and Health Part A-toxic\/hazardous Substances & Environmental Engineering 环境科学-工程：环境

CiteScore

4.10

自引率

4.80%

发文量

审稿时长

3.0 months

期刊介绍： 14 issues per year Abstracted/indexed in: BioSciences Information Service of Biological Abstracts (BIOSIS), CAB ABSTRACTS, CEABA, Chemical Abstracts & Chemical Safety NewsBase, Current Contents/Agriculture, Biology, and Environmental Sciences, Elsevier BIOBASE/Current Awareness in Biological Sciences, EMBASE/Excerpta Medica, Engineering Index/COMPENDEX PLUS, Environment Abstracts, Environmental Periodicals Bibliography & INIST-Pascal/CNRS, National Agriculture Library-AGRICOLA, NIOSHTIC & Pollution Abstracts, PubSCIENCE, Reference Update, Research Alert & Science Citation Index Expanded (SCIE), Water Resources Abstracts and Index Medicus/MEDLINE.