195 Results Found

In this paper, the effect of KMnO₄ modification on the performance of CO oxidation over a CuCeO_x/Fe₂O₃ catalyst in industrial flue gas was studied. X-ray diffraction (XRD), scanning electron microscopy (SEM), temperature-programmed reduction by H₂ (H...

In this study, sequential KMnO₄-promoted oxidative pyrolysis and H₂O₂ oxidation were employed to upgrade the adsorption capacities of durian shell biochar for methylene blue (MB) and tetracycline (TC) in an aqueous solution. It was found that the KMn...

This study explores the enhancement of photocatalytic activity in Zeolitic Imidazolate Framework-67 (ZIF-67), integrated with plasma electrolytic oxidation (PEO) coatings on an AZ31 magnesium alloy through post-treatment with potassium permanganate (...

In this study, the feasibility and mechanism of Pb²⁺ and malachite green (MG) adsorption from wastewater using KMnO₄-modified bamboo biochar (KBC) was evaluated. The KBC was characterized by SEM–EDS, XRD, FTIR and XPS. The adsorption results fo...

To investigate the effects of co-application of KMnO₄-modified biochar and organic fertilizer on the physicochemical properties, carbon and nitrogen content, and growth of Chinese cabbage in acidic red soil. Using typical acidic red soil from Yunnan...

K-ion batteries (KIB) are considered the future energy storage and conversion technology due to their remarkable performance. In this work, a high-temperature solid-state process was used to effectively synthesize KMnO₂, a promising cathode material...

Ammonium iron citrate was used as an iron precursor in order to prepare N-doped catalysts supported on KMnO₄ pretreated activated carbon (10MnK-AC). Iron nitride was synthesized in company with the formation of α-Fe₂O₃ on 10MnK-AC. The characte...

Ceramic coatings with high emissivity were fabricated on TC4 alloys by micro-arc oxidation technique (MAO) in mixed silicate and phosphate electrolytes with varying KMnO₄ addition. The microstructure, phase and chemical composition were characterized...

In this paper, we propose a facile approach to the management of graphene oxide (GO) chemistry via its synthesis using KMnO₄/K₂Cr₂O₇ oxidizing agents at different ratios. Using Fourier Transformed Infrared Spectroscopy, X-ray Photoelectron Spectrosco...

It has been reported that even if single-walled carbon nanotubes (SWNTs) are coated with the same polymer, the redox characteristics change of each chirality may differ. Particularly, the addition of hydrogen peroxide (H₂O₂) minimally affects the nea...

An impedimetric NO_x dosimeter based on the NO_x sorption material KMnO₄ is proposed. In addition to its application as a low level NO_x dosimeter, KMnO₄ shows potential as a precious metal free lean NO_x trap material (LNT) for NO_x storage catalysts (NS...

We report the electrical properties of graphene grown via chemical vapor deposition (CVD-graphene) and oxidized using a KMnO₄/dilute H₂SO₄ mixture. CVD-graphene was successfully oxidized without any pores or peeling off from the substrates. When the...

This article reports an investigation of the combustion of a binary pyrotechnic delay composition (PDC), consisting of zinc powder as fuel and KMnO₄ as an oxidising agent, with zinc content ranging from 35 to 70 wt. %. The linear burning rate for del...

Introduction: Potassium Permanganate (KMnO₄) is an uncommon cause of caustic ingestion in teenagers and adults; only case reports are found in the recent literature. At Ngwelezana Hospital in South Africa, KMnO₄ ingestion is not an uncommon indicatio...

This study explored the effects of peanut shell biochar (PSB) on the adsorption capacities of fungicides with and without successive chemical modifications, using KMnO₄ and KOH (PSB_OX-A), in order to provide a valuable understanding of their adsorpti...

Alumina-supported manganese catalysts with cryptomelane and/or birnessite structure have been prepared using a simple method based on the thermal decomposition of potassium permanganate. The samples have been characterized by XRD, FTIR, TGA, DSC, N₂...

The occurrence of natural estrogens including estrone (E1), 17β-estradiol (E2), and synthetic 17α-ethinylestradiol (EE2), which can be excreted by both humans and animals, and can enter the aqueous environment along with the discharge of domestic sew...

A high pressure oxydesulphurisation technique was investigated to reduce sulphur content, especially at ambient temperature. Prince of Wales coal was chosen for this study. The focus of the study was on the reduction of both pyritic and organic sulph...

This work aims to investigate the combustion mechanism for a pyrotechnic delay composition (PDC), consisting of zinc powder as a fuel and KMnO₄ as an oxidising agent. For this purpose, the compositions were thermally conditioned at several set temper...

Heavy metal pollution is characterized by long-term accumulation and recalcitrance to degradation, which poses a serious threat to soil ecosystems and groundwater environments. To improve the remediation efficiency of biochar for cadmium (Cd)-contami...

Harmful algal blooms (HABs) caused by Heterosigma akashiwo are occurring in coastal waters frequently, posing a great risk to marine environments and subsequent treatment processes like desalination. UV-assisted permanganate oxidation (UV/KMnO₄) is r...

The use of waste tires is a very critical issue, considering their environmental and economic implications. One of the simplest and the least harmful methods is conversion of tires into ground tire rubber (GTR), which can be introduced into different...

This article deals with the removal of manganese from water via ultrafiltration and the oxidation of manganese with chlorine dioxide or potassium permanganate before ultrafiltration. The dose of oxidizing agents, time of contact with water, and manga...

Neat chlorosulfonic acid reacts with anhydrous sodium tungstate to givetungstate sulfuric acid (TSA), a new dibasic inorganic solid acid in which two sulfuricacid molecules connect to a tungstate moiety via a covalent bond. A variety of oximeswere ox...

The oxidation of lomefloxacin (LOM) and balofloxacin (BAL) under the influence of azo initiator of radical reactions of 4,4′-azobis(4-cyanopentanoic acid) (ACVA) and H₂O₂ was examined. Oxidation using H₂O₂ was performed at room temperature whil...

This study emphasizes the importance of utilizing biodegradable material Butea parviflora (BP) fiber for sustainable solutions. BP fiber offers numerous ecological benefits, such as being lightweight, biodegradable, and affordable to recycle. The stu...

The mineral processing of a low-grade tungsten-molybdenum ore (LGTMO) was investigated to assess the potential of recovering molybdenum (Mo) and tungsten (W). Techniques such as Polarizing Microscope (PM), Scanning Electron Microscopy-Energy Dispersi...

Natural fibre-reinforced polymer composites are gaining considerable attention as sustainable alternatives to fully synthetic composites because of their low density, renewability, and favourable specific mechanical properties. However, the hydrophil...

Efficient dye sieving and salt separation can facilitate the recycling of valuable resources in textile wastewater treatment. This study focuses on developing a high-performance nanofiltration membrane (NF) by co-depositing activated polydopamine (O-...

A manganese immobilization technology in a fluidized-bed reactor (FBR) was developed by using a waste iron oxide (i.e., BT-3) as catalyst which is a by-product from the fluidized-bed Fenton reaction (FBR-Fenton). It was found that BT-3 could easily r...

Potassium permanganate (KMnO₄) is a commercially available antiseptic used in bovine intrauterine lavage to manage postpartum infections. Lipopolysaccharides (LPS) are well-studied for their ability to induce inflammation and oxidative stress. While...

Limited postharvest life of tomato fruit is due to its highly perishable nature. Hypobaric pressure is a new emerging hurdle technology usually used up to a pressure of 100 kPa for the preservation of fruits and vegetables. In this study, an integrat...

Stable isotope analysis is a powerful tool for inferring and quantifying transformation processes, but its effectiveness relies on understanding the magnitude and variability of isotopic fractionation associated with specific reactions. Potassium per...

The effects of hydrothermal treatment, 0–5% KMnO₄ content, and 300–400 °C pyrolysis temperature, were studied for activated carbon preparation from sugar cane leaves in comparison with non-hydrothermal treatment. The percent yield of...

Dense nonaqueous phase liquids (DNAPLs) like trichloroethylene (TCE) serve as the most common form of groundwater pollution in the world. Potassium permanganate (KMnO₄) is a strong oxidant that can quickly destroy DNAPLs into innocuous products. Slow...

Tungiasis, caused by the sand flea Tunga penetrans, results in itching and pain. Effective treatments, such as dimeticones, are often unaffordable. A 3% phenothrin lotion has shown safety and efficacy in Kenyan trials. This study compared the cure ra...

Two Mn_0.15Ce_0.85O_2−δ mixed oxides were synthesized by a co-precipitation method using Mn(NO₃)₂ and KMnO₄ as the manganese precursors, respectively. Structural analyses by X-ray powder diffraction and Raman spectroscopy reveal the formatio...

Oxidative stress is a significant factor affecting reproductive efficiency in dairy cows, contributing to conditions such as endometritis that impair fertility and milk production. This study investigates the molecular mechanisms by which bta-let-7d...

Hierarchical porous carbon derived from discarded biomass for energy storage materials has attracted increasing research attention due to its cost-effectiveness, ease of fabrication, environmental protection, and sustainability. Brewed tea leaves are...

Modified biochar has become an efficient tool for modulating availability of heavy metals in soils. To identify a preferable material and explore the remediation mechanism of modified biochar for Pb-contaminated soil, H₂O₂-, HNO₃-, KMnO₄-, and CaCl₂-...

Persulfate (PS) is widely used to degrade emerging organic contaminants in groundwater and soil systems, and various PS activation methods (e.g., energy or chemical inputs) have been considered to increase oxidation strength. This study investigates...

This present study proposes an improvement for the postharvest preservation of the ‘Ercolini’ pear, a fruit that is little tested in the field, using a combination of ethylene elimination methods. The techniques used were potassium perman...

Background/Objectives: Pseudomonas aeruginosa rapidly acquires antibiotic resistance and demonstrates increasing tolerance to antiseptics. This study evaluated the activity of eight antiseptics against P. aeruginosa, assessed its ability to develop a...

The application of magnesium alloys in the 3C industry requires the coexistence of excellent corrosion resistance and good electrical conductivity. In this work, a conductive and corrosion-resistant phosphate conversion coating (PCC) on AZ91D magnesi...

Halogenated ketones (HKs) and aldehydes (HAs) are prevalent emerging disinfection by-products (DBPs) threatening drinking water safety. Although pre-oxidation and coagulation are widely applied in drinking water treatment, critical knowledge gaps rem...

Background/Objectives: Adaptation can reduce or completely eliminate the effectiveness of antibiotics and antiseptics at clinical concentrations. To our knowledge, no studies have examined fungal adaptation to antiseptics. This study aimed to prelimi...

The impact of oxidation on mitigation of cyanobacteria and cyanotoxins in drinking water treatment sludge was investigated at the laboratory and treatment plant scales. Two common oxidants, KMnO₄ (5 and 10 mg/L) and H₂O₂ (10 and 20 mg/L) were applied...

Due to the coexistence of organic matter and iron in groundwater, a certain part of the iron is present as iron-organic complexes in the form of colloids and/or dissolved complexes. The study was conducted to evaluate the impact of the type of oxidiz...

This study evaluates the effect of chemical treatments on the short-beam shear strength, vibrational, and acoustic performance of banana-fibre-reinforced carbon–Kevlar hybrid composites. Banana fibres were treated with 5% NaOH and 0.5% KMnO₄ to...

MnO₂ nanostructures were successfully synthesized via the reduction of KMnO₄ solutions using the gliding arc plasma (Plasma Glidarc) approach. Here, we highlight the effect of different plasmagenic gases, such as moist air (atmospheric air), dry air,...