相关实验视频

Updated: Jun 6, 2025

Light-driven Enzymatic Decarboxylation

Light-driven Enzymatic Decarboxylation

Published on: May 22, 2016

增强的过氧单硫酸盐激活用于可见光辅助下由Ni-doped δ-FeOOH进行有机净化

Yuerong Zhou¹, Shengwen Zhou¹, Ming Yi¹

¹Key Laboratory for Environmental Pollution Prediction and Control, Gansu Province, College of Earth and Environmental Sciences, Lanzhou University, Lanzhou, 730000, PR China.

Environmental research

|November 28, 2024

概括

用添加的铁氧化有效降解了99.5%的Rhodamine B染料,使用可见光和过氧化硫酸盐 (PMS). 这种方法为工业废水处理提供了具有成本效益和无污染的解决方案.

科学领域:

环境化学环境化学
材料科学材料科学材料科学
催化剂是一种催化剂.

背景情况:

工业合成染料造成严重的水污染.
迫切需要有效,经济有效和环保的染料降解方法.
氧硫酸盐 (PMS) 激活是一种有前途的先进氧化过程.

研究的目的:

合成和评估Ni-doped δ-FeOOH作为Rhodamine B (RhB) 降解的催化剂.
用可见光辅助的PMS激活来研究RhB降解的机制.
评估处理过的废水对生物毒性的降低.

主要方法:

在室温下联合沉合成Ni-doped δ-FeOOH.
使用PMS的可见光辅助RhB的催化降解.
材料特性 (例如,表面积分析).
使用LC-MS和DFT计算进行降解途径分析.
使用T.E.S.T.进行生物毒性评估. 一个软件.软件.软件.

主要成果:

在特定条件下,在30分钟内达到99.5%的优化RhB降解 (20毫克PMS,60毫克Ni-doped δ-FeOOH,pH7).
与纯 δ-FeOOH 相比,-化 δ-FeOOH 具有较强的催化活性,这是由于表面积更大,电子转移更快.
降解过程涉及多种活性氧物种 (ROS),包括硫酸盐和基基.
确定了降解中间体,并证实了处理废水的生物毒性降低.

结论:

尼化δ-FeOOH是一种高效的催化剂,可见光驱动的PMS激活RhB降解.
性能提升归因于电子转移的改善和ROS生成的增加.
开发的系统提供了一种可持续和环保的方法来处理染料污染的废水,降低毒性.

关键词:

尼多化 δ-FeOOH 的过氧单硫酸盐的使用照片辅助的照片辅助.在RhB降解下,RhB降解.

更多相关视频

Preparation of Polyoxometalate-based Photo-responsive Membranes for the Photo-activation of Manganese Oxide Catalysts

Preparation of Polyoxometalate-based Photo-responsive Membranes for the Photo-activation of Manganese Oxide Catalysts

Published on: August 7, 2018

Synthesis and Characterization of Fe-doped Aluminosilicate Nanotubes with Enhanced Electron Conductive Properties

Synthesis and Characterization of Fe-doped Aluminosilicate Nanotubes with Enhanced Electron Conductive Properties

Published on: November 15, 2016

相关概念视频

Oxidation of Alkenes: Syn Dihydroxylation with Potassium Permanganate

Oxidation of Alkenes: Syn Dihydroxylation with Potassium Permanganate

Alkenes can be dihydroxylated using potassium permanganate. The method encompasses the reaction of an alkene with a cold, dilute solution of potassium permanganate under basic conditions to form a cis-diol along with a brown precipitate of manganese dioxide.

Oxidation of Alkenes: Syn Dihydroxylation with Osmium Tetraoxide

Oxidation of Alkenes: Syn Dihydroxylation with Osmium Tetraoxide

Alkenes are converted to 1,2-diols or glycols through a process called dihydroxylation. It involves the addition of two hydroxyl groups across the double bond with two different stereochemical approaches, namely anti and syn. Dihydroxylation using osmium tetroxide progresses with syn stereochemistry.

Radical Oxidation of Allylic and Benzylic Alcohols

Radical Oxidation of Allylic and Benzylic Alcohols

Activated manganese(IV) oxide can selectively oxidize allylic and benzylic alcohols via a radical intermediate mechanism. Primary allylic alcohols are oxidized to aldehydes, while secondary allylic alcohols yield ketones. The redox reaction of potassium permanganate with an Mn(II) salt such as manganese sulfate (under either alkaline or acidic conditions), followed by thorough drying, yields the oxidizing agent: activated MnO2. While MnO2 is insoluble in the solvents used for the reaction, the...