在实验室与试点规模系统中的Diazepam光催化降解:降解产物和反应动态的差异
Kristina Tolić Čop1, Mia Gotovuša1, Dragana Mutavdžić Pavlović1
1Faculty of Chemical Engineering and Technology, University of Zagreb, Trg Marka Marulića 19, 10000 Zagreb, Croatia.
Nanomaterials (Basel, Switzerland)
|June 11, 2025
概括
泽是一种稳定的制药污染物. 使用二氧化 (TiO2) 的光催化有效地从废水中去除迪亚泽,显示出对工业应用的希望.
科学领域:
- 环境化学环境化学
- 水处理技术水处理技术
- 先进的氧化过程 先进的氧化过程
背景情况:
- 工业废水含有持久性制药污染物,如亚泽.
- 由于其稳定性和潜在的毒性,从水中去除diazepam具有挑战性.
- 有效的废水处理方法对于环境保护至关重要.
研究的目的:
- 为了研究在各种条件下对亚泽帕姆的降解.
- 评估使用固定二氧化 (TiO2) 进行光催化疗法的疗效,以去除二氧化.
- 评估降解动力学,并在实验室和试验规模确定副产品.
主要方法:
- 通过水解,光解和光催化使用固定TiO2与UV-A和太阳辐射降解Diazepam降解.
- 添加过氧化来加快降解.
- 动力监测使用高性能液体染色学用光电极管阵列检测 (HPLC-PDA).
- 使用质谱法 (MS) 识别降解产品.
主要成果:
- 迪亚泽巴姆在水解和光解方面表现出高稳定性 (t1/2 = 25 h).
- 静止的TiO2在UV-A和太阳光下显著增强了泽的降解 (t1/2 = 1.612.56小时).
- 鉴定了五种降解产品; 迪亚泽巴姆显示出发育性毒性和低生物积累.
- 试点规模的测试实现了快速降解动力学 (0.6888 h-1).
结论:
- 使用固定TiO2的光催化是一种高效的方法,可以从废水中去除迪亚泽帕.
- 该过程是高效和可扩展的,为工业制药废水处理提供了可行的解决方案.
- 这项技术提供了一种创新的方法,以减轻水生环境中的制药污染.
更多相关视频
08:23Analyzing the Photo-oxidation of 2-propanol at Indoor Air Level Concentrations Using Field Asymmetric Ion Mobility Spectrometry
Published on: June 14, 2018
8.8K
10:21Developing Photosensitizer-Cobaloxime Hybrids for Solar-Driven H2 Production in Aqueous Aerobic Conditions
Published on: October 5, 2019
8.3K
相关概念视频
01:19Phase I Reactions: Oxidation of Aliphatic and Aromatic Carbon-Containing Systems
156
Phase I biotransformation reactions are integral to drug metabolism, predominantly involving oxidative, reductive, and hydrolytic transformations. Chief among these are oxidative reactions, which enhance the hydrophilicity of xenobiotics and introduce polar functional groups to facilitate their elimination from the body.
Oxidation reactions are fundamental in aromatic carbon-containing systems. An example is the hydroxylation of phenobarbital, a process that transforms it into...
Oxidation reactions are fundamental in aromatic carbon-containing systems. An example is the hydroxylation of phenobarbital, a process that transforms it into...
156
01:16Flame Photometry: Lab
221
In a flame photometer, when a solution like potassium chloride is aspirated into the flame, the solvent evaporates, leaving behind dehydrated salt. This salt dissociates into free gaseous atoms in their ground state. Some of these atoms absorb energy from the flame, leading to their excitation. The excited atoms return to the ground state, emitting photons at characteristic wavelengths. Because only electronic transitions are involved, the resulting emission lines are very narrow. The intensity...
221
02:50Catalysis
26.8K
The presence of a catalyst affects the rate of a chemical reaction. A catalyst is a substance that can increase the reaction rate without being consumed during the process. A basic comprehension of a catalysts’ role during chemical reactions can be understood from the concept of reaction mechanisms and energy diagrams.
26.8K