A5101552511- Environmental remediation with nanomaterials
- Arsenic contamination and mitigation
- Nanomaterials for catalytic reactions
- Heavy Metal Exposure and Toxicity
- Analytical chemistry methods development
- Electrochemical Analysis and Applications
- Cloud Data Security Solutions
- Radioactive element chemistry and processing
- Electrokinetic Soil Remediation Techniques
- Adsorption and biosorption for pollutant removal
- Advanced Image Fusion Techniques
- Acupuncture Treatment Research Studies
- Graphene research and applications
- Photoacoustic and Ultrasonic Imaging
- Engineering Structural Analysis Methods
- Plant Water Relations and Carbon Dynamics
- Healthcare and Venom Research
- Geochemistry and Elemental Analysis
- Analytical Chemistry and Chromatography
- Advanced oxidation water treatment
- Heavy metals in environment
- Greenhouse Technology and Climate Control
- Plant responses to water stress
- Advanced Chemical Sensor Technologies
- Technology and Security Systems
State Key Laboratory of Pollution Control and Resource Reuse
2015-2024
Nanjing University
2024
Nanjing University of Science and Technology
2020-2024
Guangxi Normal University
2023
Guangdong Province Environmental Monitoring Center
2023
Liaoning Normal University
2007-2022
Tianjin University of Technology
2020
Tongji University
2015-2019
Shanghai Institute of Pollution Control and Ecological Security
2017-2018
Shandong Jianzhu University
2016
Sulfidation has gained increasing interest in recent years for improving the sequestration of contaminants by zerovalent iron (ZVI). In view bright prospects sulfidated ZVI (S-ZVI), this review comprehensively summarized latest developments sulfidation ZVI, particularly that nanoscale (S-nZVI). The milestones development S-ZVI technology including its background, enlightenment, synthesis, characterization, water remediation and treatment, etc., are summarized. Under most circumstances, can...
When zerovalent iron (ZVI) is used in reductive removal of contaminants from industrial wastewater, where dissolved oxygen (DO) competes with target contaminant for the electrons donated by ZVI, both reactivity and electron selectivity (ES) ZVI toward are critical. Thus, ES two sulfidated (S-ZVI) samples, synthesized ball-milling elemental sulfur (S-ZVIbm) reacting Na2S (S-ZVINa2S), Cr(VI) under aerobic conditions were investigated. Sulfidation appreciably increased ratio rate constants...
Scanning electron microscopy (SEM), Raman spectroscopy, and X-ray photoelectron spectroscopy (XPS) depth profiling were employed to characterize the aged zerovalent iron (AZVI) samples incubated in synthetic groundwater. The AZVI prepared under different conditions exhibited passive layers of morphologies, amounts, constituents. Owing accumulation oxides on their surface, all much less reactive than pristine ZVI for Se(IV) removal. However, reactivity toward sequestration could be...
Although the electron selectivity (ES) of zerovalent iron (ZVI) for target contaminant and its utilization ratio (UR) decide removal capacity ZVI, little effort has been made to improve them. Taking selenate [Se(VI)] as a contaminant, this study investigated coupled influence aeration gas Fe(II) on ES UR ZVI. Oxygen was necessary effective Se(VI) by ZVI without addition. Due application 1.0 mM Fe(II), increased from 3.2-3.6% 6.2-6.8% improved 5.0-19.4% under aerobic conditions, which...
In this study, the effects of major anions (e.g., ClO4–, NO3–, Cl–, and SO42–) in water on reactivity zerovalent iron (ZVI) toward As(III) sequestration were evaluated with without a weak magnetic field (WMF). Without WMF, ClO4– NO3– had negligible influence removal by ZVI, but Cl– SO42– could improve ZVI. Moreover, WMF-enhancing effect ZVI was minor ultrapure water. A synergetic WMF individual anion improving observed for each investigated anion, which became more pronounced as...
Premagnetization was employed to enhance the reactivity of zerovalent iron (ZVI) toward As(III) sequestration for first time. Compared pristine ZVI (Pri-ZVI), rate elimination by premagnetized (Mag-ZVI) greater over pHini range 4.0–9.0 and increased progressively with increasing intensity magnetic field premagnetization. Mag-ZVI could keep its a long time showed better performance than Pri-ZVI removal from synthetic groundwater in column tests. The Fe K-edge XAFS analysis As(III)-treated...
Premagnetization was applied to enhance the removal of various oxidative contaminants (including amaranth (AR27), lead ion (Pb2+), cupric (Cu2+), selenite (Se4+), silver (Ag+), and chromate (Cr6+)) by zerovalent iron (ZVI) from different origins under well-controlled experimental conditions. The rate constants premagnetized ZVI (Mag-ZVI) samples were 1.2–12.2-fold greater than those pristine (Pri-ZVI) samples. Generally, there a linear correlation between specific reaction (kSA) one...
Microalgae-based bioremediation presents an alternative to traditional biological wastewater treatment. However, its efficiency is still challenging due low microalgal activities and growth rate in wastewater. Iron plays important role microbial metabolism effective stimulate growth. In this study, a novel approach was proposed simultaneously promote activity nutrient uptake from using nanoscale zerovalent iron (nZVI), the underlying molecular mechanism explored. Compared control, 0.05 mg/L...
C-C coupling is of utmost importance in the electrocatalytic reduction CO
Reactions of core–shell iron nanoparticles with metal(loid)s in water can form an array nanostructures such as Ag-seed/dendrite, As-subshell, U-yolk, Co-hollowshell, and Cs-spot. Nonetheless, there is a lack profound understanding the genesis these amazing geometries. Herein, we propose concept to unravel interdiffusion between nanoparticle metal(loid)s, where several key interactions including Kirkendall effect, metal(loid) character reaction condition effect are involved determining...
The role of oxygen in metal(loid)s removal by zerovalent iron (ZVI) is strongly dependent on the mechanisms at different pH.
Abstract Sulfated zero-valent iron (SZVI) has shown promising applications in wastewater treatment. However, the rapid decline reactivity of SZVI with time limits its real practice. To mediate this problem, partial aging was proposed to improve reactive durability SZVI. Taking Cr(VI) as target contaminant, we found that aged ZVI (AZVI) gradually lost increased from 0.5 2 d. Counter-intuitively, partially (ASZVI) showed greater than when exposed oxygenated water for a period ranging 14 In...
Mineral resources are served as critical parts of socioeconomic development. Nevertheless, mining activities will inevitably bring some ecological and environmental impacts. Quantifying such impacts has become an increasingly vital need in the future. A dynamic framework quantifying eco-environmental impact for based on economic monetary terms is creatively set up utilizing ecosystem service loss with 15 mutually independent indicators, which was applied to Western Guangdong Gold Deposit...