A5020404177- Adsorption and biosorption for pollutant removal
- Arsenic contamination and mitigation
- Environmental remediation with nanomaterials
- Advanced Photocatalysis Techniques
- Advanced oxidation water treatment
- Nanomaterials for catalytic reactions
- TiO2 Photocatalysis and Solar Cells
- Extraction and Separation Processes
- Geochemistry and Elemental Analysis
- Recycling and Waste Management Techniques
- Radioactive element chemistry and processing
- Mine drainage and remediation techniques
- Heavy metals in environment
- Graphene research and applications
- Analytical chemistry methods development
- Water Quality Monitoring and Analysis
- Graphene and Nanomaterials Applications
- Chromium effects and bioremediation
- Heavy Metal Exposure and Toxicity
- Advanced Nanomaterials in Catalysis
- Agriculture, Soil, Plant Science
- Pigment Synthesis and Properties
- Iron oxide chemistry and applications
- Electrochemical Analysis and Applications
- Bauxite Residue and Utilization
Kwangwoon University
2014-2023
Government of the Republic of Korea
2016
Catholic Kwandong University
2005-2009
Mizoram University
2009
Korea Institute of Civil Engineering and Building Technology
2009
Oak Ridge National Laboratory
2002-2005
Stanford University
2005
Auburn University
2002-2005
University of Missouri
2002
Oklahoma State University
2002
The influence of various soil physical and chemical properties (Fe Mn oxides, pH, cation exchange capacity, total inorganic organic carbon, particle size) on As(V) adsorption, sequestration, relative bioaccessibility (as a surrogate for oral bioavailability) was investigated in wide range well-characterized soils over 6-month period. Arsenic(V) measured using streamlined version physiologically based extraction test (PBET), designed to replicate the solubility-limiting conditions child's...
Metronidazole (MNZ) is a brand of nitroimidazole antibiotic, which generally used in clinical applications and extensively for the treatment infectious diseases caused by anaerobic bacteria protozoans. The aim this investigation was to degrade MNZ with illuminated TiO2 nanoparticles at different catalyst dosage, contact time, pH, initial concentration lamp intensity. Maximum removal observed near neutral pH. Removal efficiency decreased increasing dosage concentration. reaction rate constant...
Photocatalytic removal of Cr(VI) and Ni(II) from aqueous solution using synthesized nanoparticle ZnO under ultraviolet (UV) light irradiation was studied in this work. Firstly, prepared by the chemical method with an organic inhibitor. Then efficiency investigated variation pH, dosage, contact time initial concentration. Maximum observed at near‐neutral pH because reduced photocatalytic activity exceedingly low high values originates either acidic/photochemical corrosion catalyst and/or...
Biochars (BWBC 300, BWBC 500 and 700) derived from buffalo weed (Ambrosia trifida L. var. trifida) at different pyrolysis temperatures of 700°C were investigated for the removal Cd(II) Pb(II) ions aqueous solutions. The physicochemical properties biochars studied using FTIR, scanning electron microscopy (SEM), X-ray diffraction, Brunauer, Emmett Teller surface area, cation exchange capacity energy dispersive analysis. adsorption solution pH = 5 could be well described by Freundlich model in...
Abstract In this study, photocatalytic degradation of Acid Orange 7 (AO7) by tungsten oxide nanopowder under UV irradiation was investigated with variation pH, WO
The purpose of this investigation was to study the applicability ZnO–TiO2 composite as a photocatalyst for degradation Bentazon. Effects various parameters such catalyst dosage, pH, initial Bentazon concentration, oxygen purging gas, hydrogen peroxide concentration and type organic compounds on removal efficiency were studied. results SEM FT-IR analysis demonstrated favorable immobilization zinc oxide nanoparticles onto TiO2. greatest observed at neutral pH due photo-corrosion ZnO in acidic...
Porous nanocomposites, graphene oxide based-inverse spinel nickel ferrite (GONF) and reduced (rGONF), were prepared by co-precipitation of (GO) with iron salts at one pot.