Enhanced removal of gatifloxacin by Fe3O4@bacteria: Performance and mechanism

IF 6.9 2区环境科学与生态学 Q1 ENGINEERING, CHEMICAL

Process Safety and Environmental Protection Pub Date : 2025-03-28 DOI:10.1016/j.psep.2025.107080

Jianfu Man, Xinran Wang, Wenpeng Jia, Yongzheng Tang, Yongrui Pi

{"title":"Enhanced removal of gatifloxacin by Fe3O4@bacteria: Performance and mechanism","authors":"Jianfu Man, Xinran Wang, Wenpeng Jia, Yongzheng Tang, Yongrui Pi","doi":"10.1016/j.psep.2025.107080","DOIUrl":null,"url":null,"abstract":"<div><div>A novel magnetic biobased material, synthesized from nano Fe<sub>3</sub>O<sub>4</sub> and degrading-bacteria, was developed for the effective removal of gatifloxacin (GAT). Investigations into various parameters influencing the adsorption process revealed that the optimal adsorption capacity of 56.63 mg/g for GAT was achieved under mildly acidic conditions. Furthermore, the adsorption capacity of GAT increased with temperature, specifically within the range of 20 °C to 30 °C, while a decrease was noted at lower concentrations of NaCl. The adsorption kinetics of GAT onto Fe<sub>3</sub>O<sub>4</sub>@bacteria were best described by the pseudo-second-order (PSO) kinetic model and the Langmuir isotherm model. Thermodynamic evaluations confirmed that the adsorption process was both endothermic and spontaneous. The primary mechanisms driving the adsorption of GAT included pore filling, π-π conjugation, hydrogen bonding, and electrostatic interactions. Therefore, Fe<sub>3</sub>O<sub>4</sub>@bacteria was established as an effective and environmentally sustainable adsorbent for the removal of GAT.</div></div>","PeriodicalId":20743,"journal":{"name":"Process Safety and Environmental Protection","volume":"197 ","pages":"Article 107080"},"PeriodicalIF":6.9000,"publicationDate":"2025-03-28","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":null,"platform":"Semanticscholar","paperid":null,"PeriodicalName":"Process Safety and Environmental Protection","FirstCategoryId":"93","ListUrlMain":"https://www.sciencedirect.com/science/article/pii/S0957582025003477","RegionNum":2,"RegionCategory":"环境科学与生态学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"Q1","JCRName":"ENGINEERING, CHEMICAL","Score":null,"Total":0}

引用次数: 0

Abstract

A novel magnetic biobased material, synthesized from nano Fe₃O₄ and degrading-bacteria, was developed for the effective removal of gatifloxacin (GAT). Investigations into various parameters influencing the adsorption process revealed that the optimal adsorption capacity of 56.63 mg/g for GAT was achieved under mildly acidic conditions. Furthermore, the adsorption capacity of GAT increased with temperature, specifically within the range of 20 °C to 30 °C, while a decrease was noted at lower concentrations of NaCl. The adsorption kinetics of GAT onto Fe₃O₄@bacteria were best described by the pseudo-second-order (PSO) kinetic model and the Langmuir isotherm model. Thermodynamic evaluations confirmed that the adsorption process was both endothermic and spontaneous. The primary mechanisms driving the adsorption of GAT included pore filling, π-π conjugation, hydrogen bonding, and electrostatic interactions. Therefore, Fe₃O₄@bacteria was established as an effective and environmentally sustainable adsorbent for the removal of GAT.

查看原文本刊更多论文

求助全文

约1分钟内获得全文求助全文

来源期刊

Process Safety and Environmental Protection 环境科学-工程：化工

CiteScore

11.40

自引率

15.40%

发文量

929

审稿时长

8.0 months

期刊介绍： The Process Safety and Environmental Protection (PSEP) journal is a leading international publication that focuses on the publication of high-quality, original research papers in the field of engineering, specifically those related to the safety of industrial processes and environmental protection. The journal encourages submissions that present new developments in safety and environmental aspects, particularly those that show how research findings can be applied in process engineering design and practice. PSEP is particularly interested in research that brings fresh perspectives to established engineering principles, identifies unsolved problems, or suggests directions for future research. The journal also values contributions that push the boundaries of traditional engineering and welcomes multidisciplinary papers. PSEP's articles are abstracted and indexed by a range of databases and services, which helps to ensure that the journal's research is accessible and recognized in the academic and professional communities. These databases include ANTE, Chemical Abstracts, Chemical Hazards in Industry, Current Contents, Elsevier Engineering Information database, Pascal Francis, Web of Science, Scopus, Engineering Information Database EnCompass LIT (Elsevier), and INSPEC. This wide coverage facilitates the dissemination of the journal's content to a global audience interested in process safety and environmental engineering.