在旋转盘光催化反应堆中用于抗生素分解的新型纳米结构方法
Saeid Fallahizadeh1,2, Mahmood Reza Rahimi3, Mitra Gholami4,5
1Research Center for Environmental Health Technology, Iran University of Medical Sciences, Tehran, Iran.
Scientific reports
|May 8, 2024
概括
使用新型旋盘光催化反应器进行先进的废水处理,有效地分解了阿莫西西林 (AMX). 这种可持续的技术显示出从水源中去除持久性制药污染物的前景.
科学领域:
- 环境化学环境化学
- 材料科学 材料科学 材料科学
- 化学工程是化学工程的重要组成部分.
背景情况:
- 传统的废水处理与抗生素的去除斗争,需要先进的可持续解决方案.
- 抗生素耐药性化合物和低生物降解性对水源构成重大挑战.
研究的目的:
- 为了研究旋盘光催化反应器 (SDPR) 对阿莫西西林 (AMX) 分解的有效性.
- 开发和描述一种新型可见光激活Fe3O4@SiO2-NH2@CuO/ZnO核心外 (FSNCZ CS) 薄膜光催化剂.
主要方法:
- 使用TEM,FESEM,XRD和UV-Vis-DRS等技术制造和表征FSNCZ CS光催化剂.
- 优化SDPR操作参数,包括照射时间,pH,AMX度,旋转速度和流量.
- 分析AMX分解,COD,TOC去除和活性物种的识别.
主要成果:
- 在优化条件下达到98.7%的AMX分解 (60分钟,350rpm,0.9L/min,pH5,20 mg/LAMX).
- 显著减少了化学氧气需求 (69.95%) 和总有机碳 (61.2%).
- 在分解过程中确定了基 (·OH) 和超氧化物 (·O2-) 激素作为主要的活性物种.
结论:
- 使用可重复使用的FSNCZ CS光催化剂开发的SDPR对抗生素分解非常有效.
- 这项技术为从废水中去除有机污染物提供了一种有希望和可持续的方法.
- 进一步研究该系统在更广泛的有机化合物降解中的应用是有必要的.
更多相关视频
11:49A Continuous-flow Photocatalytic Reactor for the Precisely Controlled Deposition of Metallic Nanoparticles
Published on: April 10, 2019
9.7K
08:30A Complete Method for Evaluating the Performance of Photocatalysts for the Degradation of Antibiotics in Environmental Remediation
Published on: October 6, 2022
2.2K
相关概念视频
Physical Methods for Controlling Microbial Growth: Radiation and Filtration
1.7K
Radiation and filtration are essential tools for microbial control, targeting microorganisms through distinct mechanisms. Radiation eliminates microbes by damaging their DNA, either killing them or inhibiting their growth. Based on wavelength, radiation is classified into two types: nonionizing and ionizing radiation.Non-ionizing radiation, such as UV radiation (200–400 nm), is absorbed by DNA, causing defects that effectively disinfect surfaces, air, and water, including safety cabinets.
1.7K
Microbial Bioremediation of Pesticides
67
Pesticides often feature structurally complex chemical architectures, incorporating halogen groups and multiple aromatic rings. These characteristics confer high chemical stability, rendering many pesticides resistant to natural degradation processes. This resistance poses significant environmental concerns, as persistent pesticide residues can accumulate in ecosystems and affect non-target organisms.Despite the inherent stability of many pesticides, certain microorganisms possess the metabolic...
67
Microbial Corrosion
67
Microbiologically Influenced Corrosion (MIC) is a significant form of material degradation caused by the metabolic activities of microorganisms. This phenomenon poses substantial challenges across various industries, including oil and gas, maritime, and water treatment sectors.MIC occurs when microorganisms, such as bacteria, archaea, and fungi, colonize metal surfaces, forming biofilms that alter the local electrochemical environment. These biofilms can lead to the production of corrosive...
67
