Related Experiment Video
Updated: Oct 2, 2025

Author Spotlight: Functionalizing Metal-Organic Frameworks: Advancements, Challenges, and the Power of Post-Synthetic Ligand Exchange
Published on: June 23, 2023
MoS2 boosts the Fe2+/PMS process for carbamazepine degradation
Huan Peng1,2, Rong Chen1, Ningyao Tao1
1Zhejiang Key Laboratory of Drinking Water Safety and Distribution Technology, College of Civil Engineering and Architecture, Zhejiang University, Hangzhou, 310058, People's Republic of China.
Abstract:
Activation of peroxymonosulfate (PMS) by Fe2+ is a green oxidation process for degradation of organic contaminants. However, the formation of iron mud and low PMS utilization lead to the decreased oxidation efficiency. In this work, commercial MoS2 particles were used as the catalyst for boosting the Fe2+/PMS process for carbamazepine (CBZ) removal. The CBZ removal efficiency by the MoS2/Fe2+/PMS process was significantly enhanced, increasing to 6.5 times that of the Fe2+/PMS process. The Fe3+ was reduced to Fe2+ by the exposed Mo4+ on the surface of MoS2, leading to the enhanced PMS utilization rate and increased Fe2+ concentration. The relative intensity of DMPO-HO• and DMPO- SO4-• followed the order of MoS2/PMS < Fe2+/PMS < MoS2/Fe2+/PMS, also suggesting the enhanced oxidation activity with the addition of MoS2 in the process of Fe2+/PMS. The commercial MoS2 had good stability shown by the CBZ removal efficiency remaining almost unchanged during 8-time cycling use. Finally, a possible CBZ degradation pathway was proposed for helping understand the oxidation mechanism of the MoS2/Fe2+/PMS process.
Related Concept Videos
Phase II Reactions: Methylation Reactions
The mechanism of methylation unfolds in two stages. The first stage sees a methyltransferase enzyme facilitating the transfer of a methyl group from S-adenosylmethionine (SAM) to the substrate, forming S-adenosylhomocysteine (SAH). The second stage involves further metabolism of SAH into homocysteine, which can be recycled...
Phase II Reactions: Sulfation and Conjugation with α-Amino Acids
Drug Metabolism: Phase II Reactions
Phase I Reactions: Oxidation of Aliphatic and Aromatic Carbon-Containing Systems
Oxidation reactions are fundamental in aromatic carbon-containing systems. An example is the hydroxylation of phenobarbital, a process that transforms it into...
Phase II Reactions: Miscellaneous Conjugation Reactions
A key example involves the conjugation of cyanide ions, which impair cellular respiration and alter hemoglobin into non-oxygen-carrying cyanmethemoglobin. To neutralize this threat, a sulfur atom from thiosulphate is transferred to the cyanide ion, catalyzed by the enzyme rhodanese, resulting in an inactive compound called thiocyanate. The production of...
Drug Metabolism: Phase I Reactions

