Direct air capture (DAC) of CO 2 is considered one the most promising carbon methods to reduce ambient concentration for climate change mitigation. Biochar represents an attractive adsorbent DAC because it environmentally friendly and cost-effective. In this work, KOH-activated bamboo biochar shows capacity 3.49 mmol g −1 (25 °C, 1 bar), used as perform direct using a fixed-bed reactor with up ...

Zeolitic products formed by hydrothermal treatment of coal fly ash (FA) with KOH aqueous solution under various reaction conditions were examined. Only linde F-type zeolite (K2Al2Si2O8·3H2O) was newly formed at atmospheric pressure, except formation of a small amount of kalsilite (KAlSiO4) at longer reaction time. The yield of the linde F zeolite was highest when reaction time, temperature, KOH...

Lanthanum hydroxide (La(OH)3) nanostructures, including elliptical nanoparticles, octahedral rods and irregular nanoparticles were prepared chemically in NaOH and KOH solutions with 10 M concentration. The obtained powders were characterized with XRD, SEM, TEM and DTA. Crystallinities, morphologies and thermal behavior of the obtained nanostructure powders were investigated under the influence ...

The bactericidal effect of mixtures of KOH and lauric acid (LA) on the microflora of broiler carcasses was examined. Carcasses were washed by shaking in KOH-LA for 1 min on a mechanical shaker. In one set of experiments, the population of bacteria recovered from carcasses following each of 3 successive washes in 1.0% KOH-2.0% LA or in distilled water (control) was enumerated. The number of tota...

This study focuses on the synthesis of merlinoite from Chinese coal fly ashes by KOH direct conversion method, with special emphasis on the application of synthetic merlinoite as fertilizer. These fly ashes were collected from two pulverized-coal combustion (PCC) power plants in Xinjiang, Northwest China. The synthesis results are influenced by fly ash characteristics and different synthesis co...

Accuracy of the automated fluorometric measurement of triglyceride by the technique of Kessler and Lederer is limited by the instability of the baseline. Concentration of the alcoholic KOH reagent was modified, and the pump tube manifold altered to provide on-stream mixing of the KOH reagent, which overcame this difficulty. A relatively inexpensive fluorometer with the solid-state photomultipli...

Heterogeneous catalysts, especially those produced with functionalized clays, can be used for methyl transesterification at moderate temperatures. The use of bentonite clay by potassium compounds (KF, KOH, K2CO3, KCl and K2SO4) in the cottonseed oil is object present study. catalysts were contacting aqueous solutions subsequent drying. characterized Hammett indicators to determine alkalinity. r...

BACKGROUND There are numerous therapeutic modalities available for treatment of molluscum contagiosum. However, the ablative modalities are painful and not suitable for children. AIM We aimed to evaluate and compare the safety and efficacy of 2 of the painless modalities, viz., 5% imiquimod cream and 10% potassium hydroxide (KOH) solution, in the treatment of molluscum contagiosum. METHODS ...

Abstract Wet anisotropic etching is extensively employed in silicon bulk micromachining to fabricate microstructures for various applications the field of microelectromechanical systems (MEMS). In addition, it most widely used surface texturing minimize reflectance light improve efficiency crystalline solar cells. wet micromachining, etch rate a major factor that affects throughput. Slower incr...

OBJECTIVE Our purpose was to estimate and compare the cost-effectiveness of the most commonly used diagnostic tests for onychomycosis: potassium hydroxide preparation (KOH), interpreted both by a dermatologist (KOH-CLINIC) and a laboratory technician (KOH-LAB); KOH with dimethyl sulfoxide (KOH-DMSO) and with chlorazol black E (KOH-CBE), interpreted by a dermatologist; culture using dermatophyte...