A5058697019- Environmental remediation with nanomaterials
- Nanomaterials for catalytic reactions
- Radioactive element chemistry and processing
- Radioactive contamination and transfer
- Advanced oxidation water treatment
- Adsorption and biosorption for pollutant removal
- Advanced Photocatalysis Techniques
- Pharmaceutical and Antibiotic Environmental Impacts
- Arsenic contamination and mitigation
- Mercury impact and mitigation studies
- Radioactivity and Radon Measurements
- Heavy Metal Exposure and Toxicity
- Heavy metals in environment
- Catalytic Processes in Materials Science
- Pesticide and Herbicide Environmental Studies
- Graphene research and applications
- Recycling and Waste Management Techniques
- Gas Sensing Nanomaterials and Sensors
- Industrial Gas Emission Control
- Toxic Organic Pollutants Impact
- CO2 Reduction Techniques and Catalysts
- Microplastics and Plastic Pollution
- Microbial bioremediation and biosurfactants
- Plant Stress Responses and Tolerance
- Nuclear Physics and Applications
Zhejiang University
2012-2025
Anhui University
2025
Carnegie Mellon University
2017-2024
Northwest Institute of Nuclear Technology
2013-2024
Wuhan University of Technology
2024
Analysis and Testing Centre
2024
Chongqing University
2021-2022
Hangzhou Xixi hospital
2021
East China Normal University
2015-2020
Sichuan University
2020
Sulfidized nanoscale zerovalent iron (SNZVI) is a promising material for groundwater remediation. However, the relationships between sulfur content and speciation properties of SNZVI materials are unknown, preventing rational design. Here, effects on crystalline structure, hydrophobicity, speciation, corrosion potential, electron transfer resistance determined. Sulfur incorporation extended nano-Fe0 BCC lattice parameter, reduced Fe local vacancies, lowered to transfer. Impacts main species...
Florfenicol (FF, C12H14Cl2FNO4S), an emerging halogenated organic contaminant of concern was effectively degraded in water by sulfidized nanoscale zerovalent iron (S-nZVI). Sulfidized nZVI (62.5 m2 g–1) that prepared using a one-step method resulted small Fe0/Fe-sulfide particles were more stable against aggregation than unsulfidized (10.2 g–1). No obvious removal FF observed nZVI. S-nZVI FF, having surface area normalized reaction rate constant 3.1 × 10–4 L m–2 min–1. The effects the S/Fe...
Sulfidized nanoscale zerovalent iron (SNZVI) has desirable properties for in situ groundwater remediation. However, there is limited understanding of how the sulfidation type and particle affect reactivity selectivity SNZVI toward contaminants, or changes as particles age. Here, synthesized by either a one-step (SNZVI-1) two-step (SNZVI-2) process were characterized, both fresh aged (1d to 60 d) nanoparticles was assessed. The measured S/Fe ratio 5.4 ± 0.5 mol % SNZVI-1 0.8 0.1 SNZVI-2. XPS...
The reactivity of sulfidized nanoscale zerovalent iron (SNZVI) is affected by the amount and species sulfur in materials. Here, we assess impact Fe (Fe2+ Fe3+) S (S2O42–, S2–, S62–) precursors used to synthesize both NZVI SNZVI on resulting physicochemical properties selectivity with water trichloroethene (TCE). X-ray diffraction indicated that altered crystalline structure SNZVI. materials made from Fe3+ precursor had an expanded lattice Fe0 body-centered-cubic (BCC) lower electron-transfer...
Exposing nanoscale zerovalent iron (NZVI) to dissolved sulfide species improves its performance as a remediation agent. However, the impacts of sulfur dose and sulfidation time on morphology, content, reactivity, selectivity resulting sulfidized NZVI (SNZVI) have not been systematically evaluated. We synthesized SNZVI using different doses times measured their properties. The S/Fe molar ratio in particles ([S/Fe]particle) was 10–500 lower than [S/Fe]dosed but predictable based ×...
ConspectusGroundwater contamination by halogenated organic compounds, especially chlorinated and fluorinated ones, threatens freshwater sources globally. Nanoscale zero-valent iron (NZVI) has been extensively studied (>5000 publications) deployed for in situ groundwater remediation, but NZVI selectivity contaminants is poor, reactive lifetimes are short, it cannot promote defluorination reactions. Recently, sulfidized (SNZVI) emerged, revitalized academic industrial interests this material...
Groundwater contamination by halogenated organic compounds, especially fluorinated ones, threatens freshwater sources globally. Sulfidized nanoscale zero-valent iron (SNZVI), which is demonstrably effective for dechlorination of groundwater contaminants, has not been well explored defluorination. Here, we show that SNZVI nanoparticles synthesized via a modified post-sulfidation method provide rapid (∼1100 μmol m–2 day–1) and relatively fast defluorination (∼6 emerging contaminant...
Abstract Single‐atom catalysts show great promise as non‐precious electrocatalysts for CO 2 electroreduction reaction (CO ER). However, it is still challenging to gain a fundamental understanding of the complicated dynamic behavior activation achieve high product selectivity. Herein, authors report an unusual iron single‐atom catalyst, containing atomically dispersed Fe–N 4 species and Fe 3 C nanoparticles (NPs) (Fe C|Fe 1 N ). Having fragmental‐rock‐shaped nanocarbon architecture, isolated...
Nonradicals are effective in selectively degrading electron-rich organic contaminants, which unfortunately suffer from unsatisfactory yield and uncontrollable composition due to the competitive generation of radicals. Herein, we precisely construct a local microenvironment carbon nitride–supported high-loading (~9 wt.%) Fe single-atom catalyst (Fe SAC) with sulfur via facile supermolecular self-assembly strategy. Short-distance S coordination boosts peroxymonosulfate (PMS) activation...
Abstract Authentic surface structures under reaction conditions determine the activity and selectivity of electrocatalysts, therefore, knowledge structure‐activity relationship can facilitate design efficient catalyst for specific reactivity requirements. However, understanding between a more realistic active its performance is challenging due to complicated interface microenvironment in electrocatalysis. Herein, we proposed standard research paradigm effectively decipher electrocatalysis,...
2,4-dichlorophenol was effectively removed from water using magnetic Pd/Fe nanoparticles supported on multiwalled carbon nanotubes (MWCNTs). The adsorption kinetics, isotherms, and energy for its partially (4-chlorophenol, 2-chlorophenol) completely (phenol) dechlorinated products are presented discussed. capacity > 4-chlorophenol 2-chlorophenol phenol MWCNTs. MWCNTs-Fe3O4–Pd/Fe nanohybrids provided rapid adsorption, gradual dechlorination, final desorption of phenol, which is attractive as...