通过金属Ag修饰合成,表征和应用SrTiO3在Enterococcus sp.的无活化中. 在废水中
J Rodríguez-Chueca1, C Mourelle2, A J Dos Santos-García3
1Department of Industrial Chemical & Environmental Engineering, Escuela Técnica Superior de Ingenieros Industriales, Universidad Politécnica de Madrid, C/José Gutiérrez Abascal 2, 28006, Madrid, Spain.
Journal of environmental management
|April 9, 2025
概括
添加过氧化硫酸盐 (PMS) 的酸 (SrTiO3@Ag) 通过消除Enterococcus sp.有效消毒废水. 这种先进的氧化过程显示出水回收的前景,尽管太阳辐射具有对抗作用.
科学领域:
- 环境科学 环境科学
- 材料科学 材料科学 材料科学
- 水处理 处理水的方法
背景情况:
- 由于水需求增加和气候变化,废水回收至关重要.
- 传统的消毒方法,如化,会产生有害的副产品.
- 先进的氧化工艺 (AOP) 提供了更安全的替代品,而过氧硫酸盐 (PMS) 显示出显著的潜力.
研究的目的:
- 为了合成和描述用于废水消毒的SrTiO3@Ag纳米结构.
- 评估SrTiO3@Ag/PMS在消除Enterococcus sp.中的有效性
- 调查太阳辐射和PMS度对消毒性能的影响.
主要方法:
- 合成和特征的SrTiO3@Ag纳米复合材料.
- 使用Enterococcus sp.进行的废水消毒实验. 作为一个目标.
- 分析包括PMS度和太阳辐射在内的因素.
- 确定参与细菌失活的关键反应物种和机制.
主要成果:
- 单独的SrTiO3@Ag显示出有限的光催化活性.
- 通过将SrTiO3@Ag与低PMS度相结合,可以获得完整的Enterococcus sp. 在45分钟内消除.
- 太阳辐射添加到SrTiO3@Ag/PMS系统中,反向地增加了反应时间.
- 细菌无活化归因于Ag纳米粒子,PMS衍生的硫酸盐基和光增强电子转移的协同效应.
结论:
- SrTiO3@Ag/PMS是一种有效的废水消毒系统,其性能优于单纯的光催化剂.
- 银纳米粒子和PMS产生的基的协同作用是有效消除细菌的关键.
- 需要进一步的研究来优化条件,并了解这个AOP在水资源回收方面的全部潜力.
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