Category Ranking
98%
Total Visits
921
Avg Visit Duration
2 minutes
Citations
20
Article Abstract
Due to its low interfacial electron migration ability and highly hydrophilic, Fe-MCM-41 (FeM) had poor activity and stability during catalytic ozonation. To this end, the secondary metal Zn and Si-F group were introduced into the framework of FeM to create surface potential difference and hydrophobic sites. Comparative characterizations showed that there existed rich acid sites with great potential difference on F-Fe-Zn-MCM-41 (FFeZnM). Additionally, because of the existence of hydrophobic and electron-withdrawing Si-F unit, the electron migration ability, hydrophobicity and acidity of FFeZnM were enhanced. The greater O mass transfer was induced by Si-F group and O was directly activated at Fe and Zn Lewis acid sites into •OH, •O and O. With •OH acting as main species, FFeZnM/O achieved the superior IBP removal (93.4%, 30 min) and TOC removal (46.6%, 120 min) over those of sole O and F-FeM/O processes, respectively. HCO, Cl, NO and SO hindered IBP degradation by FFeZnM/O, but high concentration humic acid (HA) exhibited promotion by forming HA-IBP complex. IBP degradation by FFeZnM/O was enhanced with tap water, river water, and effluent from the secondary sedimentation tank of the sewage plant acting as medium. This study proposed an innovative approach to catalyst design for catalytic ozonation.
Download full-text PDF |
Source |
|---|---|
| http://dx.doi.org/10.1016/j.jhazmat.2023.132357 | DOI Listing |
Publication Analysis
Top Keywords
Similar Publications
In situ synthesis of coral-like ε-MnO by ozone for efficient ozone decomposition across varied humidity environments.
Environ Res
August 2025
School of Resources and Environmental Engineering, Jiangsu University of Technology, Changzhou, Jiangsu, 213001, PR China.
MnOx-based materials have attracted significant attention for ozone decomposition due to their excellent catalytic activity. However, improving their stability and water resistance under humid conditions remains a major challenge. In this work, a K-doped ε-MnO catalyst was synthesized in situ using ozone as an oxidant.
View Article and Find Full Text PDFTailoring bidirectional electronic transfer interaction tunnels triggers sustainable and high activity of ozone catalysis for water purification.
Nat Commun
August 2025
School of Environmental Science and Engineering, Guangdong Provincial Key Laboratory of Environmental Pollution Control and Remediation Technology, Sun Yat-sen University, Guangzhou, China.
Heterogeneous catalytic ozonation shows promise in destroying organic pollutants in water, yet developing catalysts with both high activity and stability remains challenging. In this study, we propose a catalyst design strategy involving the anchoring of electron-sharing sites near single-atom sites to construct bidirectional electron transfer interaction tunnels. The developed catalyst (MnN-Fe@FeN) features Fe@FeN atomic clusters as electron-sharing sites, coordinated Mn single-atom centers through shared nitrogen bridges, successfully establishing a synergistic system.
View Article and Find Full Text PDFClays as Dual-Function Materials for TNT Adsorption and Catalytic Degradation: An Experimental Approach.
Materials (Basel)
August 2025
Faculty of Engineering, Department of Chemical and Food Engineering, "Vasile Alecsandri" University of Bacău, 157 Calea Marasesti Street, 600115 Bacău, Romania.
This study explores the adsorption and catalytic degradation of 2,4,6-trinitrotoluene (TNT) from aqueous solutions, using montmorillonite-based catalysts. Commercially, montmorillonite K10 was modified through aluminum pillaring (K10-Al-PILC), followed by vanadium intercalation (K10-Al-PILC-V) and ozone activation. A novel aspect of this work is the use of naturally contaminated water as the TNT source.
View Article and Find Full Text PDFOzone-coupled photocatalytic HO synthesis via Mn/Ce bimetallic metal organic framework: synergistic catalysis and sacrificial agent-free efficiency.
J Colloid Interface Sci
August 2025
Shanghai Institute of Ceramics, Chinese Academy of Sciences, Shanghai 200050, China. Electronic address:
Typically, photocatalytic HO synthesis faces efficiency limitations due to sacrificial agent dependence and sluggish oxygen activation. Herein, we present, for the first time, an ozone-coupled bimetallic MIL-100(MnCe) photocatalytic approach to HO synthesis. This novel strategy yields an impressive 1602 μmol·g·h HO in pure water without sacrificial agents.
View Article and Find Full Text PDFTiO-enhanced fly ash for advanced treatment of persistent organics (POCs) in landfill leachate hybrid ozonation-peroxymonosulfate: degradation efficiency and machine learning modeling.
RSC Adv
August 2025
Faculty of Biology and Environment, Ho Chi Minh City University of Industry and Trade (HUIT) 140 Le Trong Tan Street, Tay Thanh Ward Ho Chi Minh City Vietnam.
Landfill leachate is a major environmental concern because of its high content of persistent organic compounds (POCs), which require advanced treatment techniques. This study introduces a novel hybrid ozonation-TiO-modified fly ash composite (FA@TiO) process enhanced by a peroxymonosulfate (PMS) for POC degradation in landfill leachate. The FA@TiO composite, synthesized the sol-gel method with optimal 20% TiO loading, leverages fly ash's cost-effectiveness and TiO's catalytic prowess.
View Article and Find Full Text PDF