A5023568416- Advanced oxidation water treatment
- Advanced Photocatalysis Techniques
- Catalytic Processes in Materials Science
- Environmental remediation with nanomaterials
- Electrochemical Analysis and Applications
- Water Treatment and Disinfection
- Covalent Organic Framework Applications
- Advanced battery technologies research
- Acute Kidney Injury Research
- Arsenic contamination and mitigation
- Free Radicals and Antioxidants
- Atmospheric chemistry and aerosols
- Photochemistry and Electron Transfer Studies
- Inorganic and Organometallic Chemistry
- Spectroscopy and Quantum Chemical Studies
- CO2 Reduction Techniques and Catalysts
- Insect and Pesticide Research
- Electrocatalysts for Energy Conversion
- MXene and MAX Phase Materials
- Catalysis and Oxidation Reactions
- Water Quality Monitoring and Analysis
Sichuan University
2022-2025
State Key Laboratory of Hydraulics and Mountain River Engineering
2022-2025
The nanoconfinement effect in Fenton-like reactions shows great potential environmental remediation, but the construction of confinement structure and corresponding mechanism are rarely elucidated systematically. Herein, we proposed a novel peroxymonosulfate (PMS) activation system employing single Fe atom supported on mesoporous N-doped carbon (FeSA-MNC, specific surface area = 1520.9 m2/g), which could accelerate catalytic oxidation process via surface-confinement effect. degradation...
Carbon nanotubes (CNTs) and their derivatives have been widely exploited to activate various oxidants for environmental remediation. However, the intrinsic mechanism of CNTs-driven periodate (PI) activation remains ambiguous, which significantly impedes scientific progress toward practical application. Here, we found that CNTs can strongly boost PI oxidation phenols. Reactive oxygen species analysis, in situ Raman characterization, galvanic process experiments, electrochemical tests revealed...
Accelerating the rate-limiting Fe3+/Fe2+ circulation in Fenton reactions through addition of reducing agents (or co-catalysts) stands out as one most promising technologies for rapid water decontamination. However, conventional such hydroxylamine and metal sulfides are greatly restricted by three intractable challenges: (1) self-quenching effects, (2) heavy dissolution, (3) irreversible capacity decline. To this end, we, first time, introduced redox-active polymers electron shuttles to...
Metal-free carbon material-mediated nonradical oxidation processes (C-NOPs) have emerged as a research hotspot due to their excellent performance in selectively eliminating organic pollutants aqueous environments. However, the selective mechanisms of C-NOPs remain obscure diversity and active species. Herein, quantitative structure-activity relationship (QSAR) models were employed unveil origins C-NOP selectivity toward different oxidant systems. QSAR analysis based on adsorption descriptors...
Conveniently and cost-effectively obtained Fe(III) can be utilized for peracetic acid (PAA) activation in the presence of natural polyphenols. However, effect polyphenols on fate generated reactive oxygen species (ROS) remains unclear. In this study, it was demonstrated that efficiently trigger PAA oxidation pollutants with assistance gallic (GA), a widely distributed polyphenol. The GA/Fe(III)/PAA system removed bisphenol A (BPA) over wide initial pH range 4.0–7.0, removal rate >90% 20 min....
The continuous electron supply for oxidant decomposition-induced reactive oxygen species (ROS) generation is the main contributor long-standing micropollutant oxidation in iron-based advanced processes (AOPs). Herein, as a new class of co-catalysts, metal borides with dual active sites and preeminent conductive performance can effectively overcome inherent drawback Fenton-like reactions by steadily donating electrons to inactive Fe(III). Among borides, tungsten boride (WB) exhibits...
Direct photoreduction of FeIII is a widely recognized route for accelerating FeIII/FeII cycle in photo-Fenton chemistry. However, most the wavelengths covering full spectral range are insufficient to supply enough photon energy direct reduction process. Herein, hitherto neglected mechanism that indirect pathway initiated by light energy-dependent reactivity variation and reactive excited state (ES) was explored. Evolution excited-state species (*FeIII) resulting from metal-centered charge...
Recently, the application of FeVI in water decontamination has sparked much attention, while owing to instability FeVI, there is limited information clarify its behavior removing organic contaminants (OCs) under acidic conditions. This work discovered that altering reaction pH from 7.0 3.0 caused two patterns performance variation system during elimination nine representative OCs. Specifically, best removal OCs containing electron-donating moieties was observed at 6.0, other with...
Oxyanions, a class of constituents naturally occurring in water, have been widely demonstrated to enhance permanganate (Mn(VII)) decontamination efficiency. However, the detailed mechanism remains ambiguous, mainly because role oxyanions regulating structural parameters colloidal MnO2 control autocatalytic activity Mn(VII) has received little attention. Herein, origin oxyanion-induced enhancement is systematically studied using theoretical calculations, electrochemical tests, and...
Radical oxidation characterized by rapid reaction efficiency and a direct electron transfer (DET) pathway indicative of high selectivity in advanced processes (AOPs) has received continuous attention recent years. This study discovered that regulating N-doped mesoporous carbon materials' properties can tune the radical DET pathway. Particularly, we synthesized series materials containing N vacancies (NMC-NV) persistent free radicals (PFRs) adjusting dosage modifier ascorbic acid to activate...
Peroxymonosulfate (PMS) and its activation processes have been extensively studied. However, iodinated byproducts (I-DBPs) generated during nonactivated PMS (NPMS) activated (APMS) pose a significant risk. In NPMS, 50 μg/L concentration of iodide (I–) could significantly (p < 0.05) increase the cytotoxicity both Suwanee River natural organic matter (SRNOM) solution wastewater secondary effluent (SE), at dose 0.5 mM PMS. Cytotoxicity genotoxicity SRNOM increased by 6.6 mg-phenol/L 2.4...
Redox-inactive metal-ion-driven modulation of the oxidation behavior high-valent metal-oxo complex has garnered significant interest in biological and chemical synthesis; however, their role permanganate (Mn(VII)) for removal organic pollutants been largely neglected. Here, we uncover impact six metal ions (i.e., Ca
Ferrate [Fe(VI)] has been widely applied due to its multifunctional effects of flocculation, disinfection, and decontamination in wastewater treatment. To achieve an enhancement for Fe(VI) activity under alkaline conditions, 1-hydroxybenzotriazole (HBT), as emerging redox mediator, promotes electron transfer assist more excellent decontamination. In this study, the introduction HBT increases degradation rate sulfamethoxazole (SMX) from 53 98% at pH 8.0 within 5 min. Surprisingly, quenching...