Changseok Han
YOU?
Author Swipe
View article: A Comparative Study of ED and BPED Technologies for Ammonia Recovery from Wastewater.
A Comparative Study of ED and BPED Technologies for Ammonia Recovery from Wastewater. Open
Ammonia is a common pollutant in wastewater, and its removal is essential to prevent environmental issues such as odors and eutrophication, which can harm aquatic ecosystems and human health. While traditional treatment methods are energy-…
View article: Catalytic activation of peracetic acid to decompose micropollutants in water
Catalytic activation of peracetic acid to decompose micropollutants in water Open
Acetaminophen (APAP), a widely used pharmaceutical, is frequently detected in aquatic environments due to its persistence and limited removal by conventional wastewater treatment processes. In this study, a peracetic acid (PAA) based advan…
View article: Optimizing Ceria Promotion in Ni-Based Molecular Sieve Catalysts for Enhanced Hydrogen Production via Methane Partial Oxidation
Optimizing Ceria Promotion in Ni-Based Molecular Sieve Catalysts for Enhanced Hydrogen Production via Methane Partial Oxidation Open
Methane is one of the potent greenhouse gas which contributes to global warming deadly. Its emission cannot be stopped as it comes from various natural wetlands and anaerobic decomposition processes. Methane can be partially oxidized with …
View article: UV-Activated and Fe2+-Catalyzed H2O2 for the Treatment of Dye-Contaminated Water: Kinetics, Mechanism and Toxicity Investigations
UV-Activated and Fe2+-Catalyzed H2O2 for the Treatment of Dye-Contaminated Water: Kinetics, Mechanism and Toxicity Investigations Open
This study investigated the removal of methylene blue (MB) by different UV, UV-catalyzed H2O2 (UV/H2O2) and UV-and-iron-catalyzed H2O2 (UV/H2O2/Fe2+)-based advanced oxidation processes. At pH 6.0, the removal of MB (15 mg/L) was found to b…
View article: Exercise mediates myocardial infarction via non-coding RNAs
Exercise mediates myocardial infarction via non-coding RNAs Open
Myocardial infarction (MI), a widespread cardiovascular issue, mainly occurs due to blood clot formation in the coronary arteries, which reduces blood flow to the heart muscle and leads to cell death. Incorporating exercise into a lifestyl…
View article: Removal of contaminants in paper dyeing wastewater by Fenton and photo-Fenton processes with biological treatment
Removal of contaminants in paper dyeing wastewater by Fenton and photo-Fenton processes with biological treatment Open
Due to the production of huge quantity of potentially toxic and recalcitrant pollutants, which cannot be completely decomposed with conventional biological wastewater treatment processes, in the paper industry, reliable treatment processes…
View article: Degradation of malachite green by UV/H2O2 and UV/H2O2/Fe2+ processes: kinetics and mechanism
Degradation of malachite green by UV/H2O2 and UV/H2O2/Fe2+ processes: kinetics and mechanism Open
This work investigated the photochemical degradation of malachite green (MG), a cationic triphenylmethane dye used as a coloring agent, fungicide, and antiseptic. UV photolysis was ineffective in the removal of MG as only 12.35% degradatio…
View article: Effect of Heating Rate on the Pyrolysis Behavior and Kinetics of Coconut Residue and Activated Carbon: A Comparative Study
Effect of Heating Rate on the Pyrolysis Behavior and Kinetics of Coconut Residue and Activated Carbon: A Comparative Study Open
The pyrolysis process of coconut residue and the activated carbon was investigated using thermogravimetric analysis in the range of 25 to 900 °C, with three altered heating rates: 3, 5, and 10 °C/min. The results of the thermal decompositi…
View article: Applicability of Titanium-Based Catalysts in the Photocatalytic Degradation of 2,3,7,8-Tetrachlorodibenzofuran
Applicability of Titanium-Based Catalysts in the Photocatalytic Degradation of 2,3,7,8-Tetrachlorodibenzofuran Open
Polychlorinated dibenzofurans (PCDFs) are persistent toxic compounds that are ubiquitous in the environment. Nanocomposites of titanium(IV) oxide-vanadium(III) oxide (Ti3V2O7) and titanium(IV) oxide-silicon dioxide (Ti2Si7O30) were prepare…
View article: The Cr(III) Exchange Mechanism of Macroporous Resins: The Effect of Functionality and Chemical Matrix, and the Statistical Verification of Ion Exchange Data
The Cr(III) Exchange Mechanism of Macroporous Resins: The Effect of Functionality and Chemical Matrix, and the Statistical Verification of Ion Exchange Data Open
This study focuses on investigating and comparing the influence of the surface functional groups and chemical matrices of macroporous resin on the Cr(III) exchange mechanism. The results discussed herein indicate that sulfonic resin remove…
View article: Tea-Waste-Mediated Magnetic Oxide Nanoparticles as a Potential Low-Cost Adsorbent for Phosphate (PO43−) Anion Remediation
Tea-Waste-Mediated Magnetic Oxide Nanoparticles as a Potential Low-Cost Adsorbent for Phosphate (PO43−) Anion Remediation Open
In the current study, magnetic oxide nanoparticle-impregnated tea waste (TW-Fe3O4) is employed as an adsorbent to remove phosphate ions (PO43−) from an aqueous solution. By utilizing a variety of analytical methods, the TW-Fe3O4 nano-adsor…
View article: Bi-functional photocatalytic heterostructures combining titania thin films with carbon quantum dots (C-QDs/TiO2) for effective elimination of water pollutants
Bi-functional photocatalytic heterostructures combining titania thin films with carbon quantum dots (C-QDs/TiO2) for effective elimination of water pollutants Open
In this study, carbon quantum dots (C-QDs), prepared via hydrothermal-microwave procedures, were successfully combined with nanostructured titania (TiO 2 ). The photocatalytic oxidation/reduction activity of the C-QDs/TiO 2 composite films…
View article: A Short Review on Recent Advanced Oxidation Technologies for Microplastics Degradation
A Short Review on Recent Advanced Oxidation Technologies for Microplastics Degradation Open
Microplastics comprise plastic particles that are less than 5 mm in size. Owing to a significant increase in plastic production, micro plastics have become ubiquitous pollutants worldwide. Several studies have reported that microplastics a…
View article: The Catalytic Degradation of the Inflammatory Drug Diclofenac Sodium in Water by Fe2+/Persulfate, Fe2+/Peroxymonosulfate and Fe2+/H2O2 Processes: A Comparative Analysis
The Catalytic Degradation of the Inflammatory Drug Diclofenac Sodium in Water by Fe2+/Persulfate, Fe2+/Peroxymonosulfate and Fe2+/H2O2 Processes: A Comparative Analysis Open
Diclofenac sodium was extensively used for treating arthritis, osteoarthritis and skeletal muscular injuries, which ultimately caused troubles for aquatic organisms as well as human beings. In this study, homogeneous catalytic advanced oxi…
View article: Fabrication of High Surface Area TiO2-MoO3 Nanocomposite as a Photocatalyst for Organic Pollutants Removal from Water Bodies
Fabrication of High Surface Area TiO2-MoO3 Nanocomposite as a Photocatalyst for Organic Pollutants Removal from Water Bodies Open
A nanocomposite (NC) of titanium (IV) oxide (TiO2) and molybdenum (VI) oxide (MoO3) was synthesized using a hydrothermal route. Detailed analyses using transmission electron microscopy, X-ray diffraction, X-ray fluorescence (XRF), Brunauer…
View article: Green Synthesis of Silver Oxide Microparticles Using Green Tea Leaves Extract for an Efficient Removal of Malachite Green from Water: Synergistic Effect of Persulfate
Green Synthesis of Silver Oxide Microparticles Using Green Tea Leaves Extract for an Efficient Removal of Malachite Green from Water: Synergistic Effect of Persulfate Open
The removal of water pollutants by photocatalysis is a promising technique, mainly due to its environmentally friendly and sustainable nature. In this study, the degradation of a recalcitrant organic pollutant, malachite green (MG), was in…
View article: Fragmentation and release of pristine and functionalized carbon nanotubes from epoxy-nanocomposites during accelerated weathering
Fragmentation and release of pristine and functionalized carbon nanotubes from epoxy-nanocomposites during accelerated weathering Open
Nano-enabled consumer materials could degrade during their use or end-of-life disposal due to weathering. Understanding the potential risks from the release and the toxicity of embedded nanomaterial is needed.
View article: Synthesis, Characterization, and Solar Photo-Activation of Chitosan-Modified Nickel Magnetite Bio-Composite for Degradation of Recalcitrant Organic Pollutants in Water
Synthesis, Characterization, and Solar Photo-Activation of Chitosan-Modified Nickel Magnetite Bio-Composite for Degradation of Recalcitrant Organic Pollutants in Water Open
Photocatalysis is a promising process for decomposing harmful organic pollutants in water. In this study, solar/photocatalytic degradation of two model azo dyes, i.e., methylene blue (MB) and methyl red (MR), in water usinga nanostructured…
View article: Single-Stranded DNA Recognition over Fluorescent Gold-Aryl Nanoparticles
Single-Stranded DNA Recognition over Fluorescent Gold-Aryl Nanoparticles Open
Fluorescence labeling of gold-aryl nanoparticles, AuNPs-COOH, was achieved by the covalent derivatization with dansyl chloride (DNS-Cl) reagent (5-naphthalene-1-sulfonyl chloride) for potential ssDNA recognition. The fluorescent gold nanop…