A5101804402- Advanced oxidation water treatment
- Heavy metals in environment
- Arsenic contamination and mitigation
- Advanced Photocatalysis Techniques
- Environmental remediation with nanomaterials
- Iron oxide chemistry and applications
- Radioactive element chemistry and processing
- Adsorption and biosorption for pollutant removal
- Heavy Metal Exposure and Toxicity
- Geochemistry and Elemental Analysis
- Pharmaceutical and Antibiotic Environmental Impacts
- Pesticide and Herbicide Environmental Studies
- Clay minerals and soil interactions
- Nanomaterials for catalytic reactions
- Water Quality Monitoring and Analysis
- Catalytic Processes in Materials Science
- Mercury impact and mitigation studies
- Toxic Organic Pollutants Impact
- Electrocatalysts for Energy Conversion
- Industrial Gas Emission Control
- Mine drainage and remediation techniques
- Ammonia Synthesis and Nitrogen Reduction
- Coal and Its By-products
- TiO2 Photocatalysis and Solar Cells
- Environmental Toxicology and Ecotoxicology
Institute of Soil Science
2016-2025
Chinese Academy of Sciences
2016-2025
State Key Laboratory of Soil and Sustainable Agriculture
2025
Kyung Hee University
2022-2024
Xinjiang Agricultural University
2024
University of Chinese Academy of Sciences
2019-2024
Hebei University of Technology
2024
Detection Limit (United States)
2020
Hunan University of Technology
2018
Shandong Agricultural University
2015
This study investigated the effects of metals (Fe3+, Cu2+, Ni2+, and Zn2+) phenolic compounds (PCs: hydroquinone, catechol, phenol) loaded on biomass formation persistent free radicals (PFRs) in biochar. It was found that metal compound treatments not only increased concentrations PFRs biochar but also changed types formed, which indicated manipulating amount PCs may be an efficient method to regulate These results provided direct evidence elucidate mechanism PFR Furthermore, catalytic...
There has been considerable interest in the use of persulfate for situ chemical oxidation organic contaminants soils, sediments, and groundwater. Since humic acid (HA) exists ubiquitously these environmental compartments, its redox active functional moieties, such as quinones, may play an important role processes treatments. Understanding effects HA, especially quinone groups on degradation pollutants by production sulfate radicals (SO4(•-)) from persulfate, is beneficial devising effective...
We investigated the activation of hydrogen peroxide (H2O2) by biochars (produced from pine needles, wheat, and maize straw) for 2-chlorobiphenyl (2-CB) degradation in present study. It was found that H2O2 can be effectively activated biochar, which produces hydroxyl radical ((•)OH) to degrade 2-CB. Furthermore, mechanism elucidated electron paramagnetic resonance (EPR) salicylic acid (SA) trapping techniques. The results showed biochar contains persistent free radicals (PFRs), typically ∼...
Phytoremediation is a potentially cost-effective and environmentally friendly remediation method for environmental pollution. However, the safe treatment resource utilization of harvested biomass has become limitation in practical applications. To address this, novel manganese-carbon-based single-atom catalyst (SAC) been developed based on pyrolysis manganese hyperaccumulator, Phytolacca americana. In this method, atoms are dispersed atomically carbon matrix coordinate with N to form Mn–N4...
Abstract Tandem nitrate electroreduction reaction (NO 3 − RR) is a promising method for green ammonia (NH ) synthesis. However, the mismatched kinetics processes between NO ‐to‐NO 2 and ‐to‐NH results in poor selectivity NH excess evolution electrolyte solution. Herein, Ni 2+ substitution strategy developing oxide heterostructure Co/Fe layered double oxides (LDOs) was designed employed as tandem electrocataltysts RR. (Co 0.83 0.16 Fe exhibited high yield rate of 50.4 mg ⋅ cm −2 h −1 with...
Organic dye degradation was achieved via direct oxidation by bismuth silver oxide coupled with visible light photocatalysis sodium bismuthate. Crystal violet decomposition each reagent proceeded two distinct pathways, involving different active oxygen species. A comparison of treatment method alone and in combination demonstrated that using the combined methods sequence a higher degree degradation, especially mineralization, than obtained either alone. In process acts as pretreatment to...
The transformation of the sulfonamide antimicrobial sulfamethazine (SMZ) by a synthetic analogue birnessite-family mineral vernadite (δ-MnO2) was studied. observed pseudo-first-order reaction constants (kobs) decreased as pH increased from 4.0 to 5.6, consistent with decline in δ-MnO2 reduction potential increasing pH. Molecular oxygen accelerated SMZ and influenced product distribution. Increases Na+ concentration produced declines kobs. Transformation products identified tandem mass...
Persulfate-based in situ chemical oxidation (ISCO) for soil remediation has received great attention recent years. However, the mechanisms of interaction between persulfate (PS) and constituents are not fully understood. In this study, PS decomposition, activation, free radical formation conversion processes 10 different soils were examined. The results showed that organic matter (SOM) was dominant factor affecting decomposition soil, but Fe/Mn-oxides mainly responsible when SOM removed....
Despite that persulfate radical (S2O8•–) is an important species formed from the (PS) activation process, its reactivity toward contaminant degradation has rarely been explored. In this study, we found S2O8•– efficiently degrades hexachloroethane (HCA) under anaerobic conditions, whereas HCA negligible in presence of oxygen. We observed dechlorination products such as pentachloroethane, tetrachloroethylene, and Cl– during degradation, which suggest mainly a reductive process conditions....
In this study, iron selenide nanoparticles (FeSe2) were synthesized and applied in Fenton-like reactions for degradation of pollutants. It was found that FeSe2 exerts excellent catalytic reactivity toward different oxidants including peroxymonosulfate (PMS), peroxydisulfate, H2O2, which can degrade a wide range pollutants such as 2,4,4′-trichlorobiphenyl, bisphenol A, sulfamethoxazole, chlortetracycline, perfluorooctanoic acid, with the efficiency TOC removal reaching 55–95 20.3–50.9%,...
Iron (Fe) phases are tightly linked to the preservation rather than loss of organic carbon (OC) in soil; however, during redox fluctuations, OC may be lost due Fe phase-mediated abiotic processes. This study examined role driving hydroxyl radical (•OH) formation and transformation cycles paddy soils. Chemical probes, sequential extraction, Mössbauer analyses showed that active species, such as exchangeable surface-bound low-crystalline minerals (e.g., green rust-like phases), predominantly...
Interface oxygen vacancies (OVs) are commonly used to improve the catalytic performance of activators in persulfate-based advanced oxidation processes, but underlying mechanism was not fully explored. This work reports a facile heat treatment method regulate OVs MoO3-x elucidate peroxymonosulfate (PMS) activated by degrade organic pollutants. Electron spin resonance, free radical quenching, X-ray photoelectron spectroscopy, and Raman spectroscopy confirmed that both reducing Mo species...
Advanced oxidation processes (AOPs) have revealed wide prospects in the application of degradation organic contaminants ground water and soil. High-performance, environmentally friendly, low-cost single-atom catalysts (SACs) are promising approaches to active persulfate AOPs. However, practical SACs is restricted by high preparation costs tedious procedures. Herein, a manganese (Mn) hyperaccumulator, Phytolacca americana, was successfully exploited as precursor synthesize novel Mn SAC...
The establishment of ecological risk thresholds for arsenic (As) plays a pivotal role in developing soil conservation strategies. However, despite many studies regarding the toxicological profile As, such varying by diverse properties have rarely been established. This study aims to address this gap compiling and critically examining an extensive dataset As toxicity data sourced from existing literature. Furthermore, augment information, experimental on focusing barley root elongation were...
This study investigated the catalytic decomposition of H2O2 by activated carbon (AC) and its implications for degradation diethyl phthalate (DEP). It was found that AC exhibited excellent ability DEP. HNO3 modification altered surface characteristics together with concentrations types free radicals (FRs), which further promoted generation •OH. Positive correlations were between FR concentration •OH (R2 = 0.856) proportion surface-bound hydroxyl groups (C–OH) rate 0.776), indicating FRs in...