通过Co-Ni-Mo硫化物/CNT激活Peroxymonosulfate,用于有机污染物的降解
Shihao You1, Jing Di1, Tao Zhang1
1School of Biological and Chemical Engineering, Zhejiang University of Science and Technology, Hangzhou 310023, China.
Molecules (Basel, Switzerland)
|August 10, 2024
概括
先进的氧化催化剂,Co-Ni-Mo/碳纳米管复合物,有效地激活过氧硫酸盐 (PMS) 进行罗达胺B降解. 这种新型催化剂显示了废水处理的高效率和稳定性.
科学领域:
- 材料科学 材料科学 材料科学
- 环境化学环境化学
- 催化剂是一种催化剂.
背景情况:
- 先进的氧化过程 (AOP) 对于降解废水中的持久有机污染物至关重要.
- 氧硫酸盐 (PMS) 激活需要有效的催化剂来产生活性氧物种.
- 开发新的复合材料可以提高环境修复的催化性能.
研究的目的:
- 为了研究Co-Ni-Mo/碳纳米管 (CNT) 复合催化剂对PMS激活的疗效.
- 探索复合材料中的催化机制和协同效应.
- 评估催化剂在降解Rhodamine B中的性能及其稳定性.
主要方法:
- 使用单热水法合成了NiCo2S4,MoS2和CNT复合催化剂.
- 进行了罗达胺B脱色实验,以评估催化效率.
- 用激光灭研究来确定活性物种.
- 电化学方法和XPS用于机制研究.
主要成果:
- 在20分钟内,Co-Ni-Mo/CNT催化剂实现了99%的Rhodamine B脱色.
- 与没有所有组件的催化剂相比,降解率明显高.
- 确定的主要活性物种是单一氧 (1O2),硫酸 (SO4•−) 和 (•OH) 基.
- 催化剂显示金属漏率低,稳定性良好.
结论:
- 在CNT复合物中的MoS2和NiCo2S4之间的协同作用增强了PMS激活.
- 相互连接的结构促进了电子传输,并为高效的废水处理提供了活跃地点.
- 这项研究为设计环境应用的多金属硫化物催化剂提供了洞察力.
相关概念视频
Catalysis
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
Radical Oxidation of Allylic and Benzylic Alcohols
1.9K
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...
1.9K
Oxidation of Alkenes: Syn Dihydroxylation with Potassium Permanganate
11.2K
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.
11.2K
Bioremediation
18.2K
Bioremediation is the use of prokaryotes, fungi, or plants to remove pollutants from the environment. This process has been used to remove harmful toxins in groundwater as a byproduct of agricultural run-off and also to clean up oil spills.
18.2K
Oxidation of Alcohols
12.9K
In this lesson, the oxidation of alcohols is discussed in depth. The various reagents used for oxidation of primary and secondary alcohols are detailed, and their mechanism of action is provided.
The process of oxidation in a chemical reaction is observed in any of the three forms:
The process of oxidation in a chemical reaction is observed in any of the three forms:
12.9K


