上海大学学报(自然科学版) ›› 2025, Vol. 31 ›› Issue (2): 252-263.doi: 10.12066/j.issn.1007-2861.2637

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含高活性铝离子羟基自由基滤液降解水中的土霉素

王新岩, 郭晓晗, 麻根旺, 盖卫卓, 邓振炎   

  1. 1. 上海大学 理学院, 上海 200444; 2. 洛阳师范学院 物理与电子信息学院, 河南 洛阳 471934
  • 收稿日期:2024-06-29 出版日期:2025-04-30 发布日期:2025-05-09
  • 通讯作者: 邓振炎
  • 基金资助:
    国家自然科学基金资助项目 (51872181)

Oxytetracycline removal from aqueous solution using a hydroxyl radical filtrate containing highly active aluminum ions

WANG Xinyan, GUO Xiaohan, MA Genwang, GAI Weizhuo, DENG Zhenyan   

  1. 1. College of Sciences, Shanghai University, Shanghai 200444, China; 2. College of Physics & Electronic Information, Luoyang Normal University,Luoyang 471934, Henan, China
  • Received:2024-06-29 Online:2025-04-30 Published:2025-05-09

摘要: 高级氧化技术 (advanced oxidation processes, AOPs) 因其具有产生强氧化性自由基的能力, 在降解有机污染物领域受到广泛关注. 然而, 由于传统的 Fenton 反应存在 pH 值适用范围窄 (2.8∼3.5) 和产生铁泥沉淀等缺点, 故通过 Al+酸+H2O2 体系反应后经过滤得到含有高活性铝离子的羟基自由基滤液, 发现该体系可以有效降解水中的土霉素 (oxytetracycline, OTC). 研究了制备羟基自由基滤液所用 Al 粉体剂量、反应时间、H2O2 浓度以及 pH 值等因素对降解水中土霉素的影响, 同时对滤液中羟基自由基产生的机理进行了分析.

关键词: 高活性铝离子, 高级氧化技术, 羟基自由基, 土霉素, 降解

Abstract: Advanced oxidation processes (AOPs) are widely used to degrade organic pollutants in aqueous solutions due to their ability to generate highly reactive radicals. However, the traditional Fenton reaction is limited by its required pH range of 2.8∼3.5 and the formation of Fe sludge. This study presents a hydroxyl radical filtrate containing highly active aluminum ions, prepared by filtering the reaction suspension of an Al+acid+H2O2 system. The filtrate effectively degraded oxytetracycline (OTC) in aqueous solution. The effects of Al dosage, reaction time, H2O2 concentration, and pH of filtrate preparation on oxytetracycline degradation efficiency were systematically investigated. Additionally, the mechanism underlying hydroxyl radical generation in the filtrate was analyzed.

Key words: high-activity aluminum ions, advanced oxidation processes, hydroxyl radicals, oxytetracycline, degradation

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