Results 1 to 10 of about 16,332 (124)

Effect of the CuAl2O4 and CuAlO2 Phases in Catalytic Wet Air Oxidation of ETBE and TAME using CuO/γ‐Al2O3 catalysts [PDF]

open access: yesChemistryOpen, 2019
This paper studies Cu/Al2O3 catalysts, synthesized in two ways: copper deposit in the synthesis of alumina (sol gel) and incipient impregnation stabilized at 400 °C.
Cecilia Sánchez‐Trinidad   +7 more
doaj   +3 more sources

Superior selectivity of high-frequency ultrasound toward chorine containing-pharmaceuticals elimination in urine: A comparative study with other oxidation processes through the elucidation of the degradation pathways [PDF]

open access: yesUltrasonics Sonochemistry, 2021
This work considered the sonochemical degradation (using a bath-type reactor, at 375 kHz and 106.3 W L-1, 250 mL of sample) of three representative halogenated pharmaceuticals (cloxacillin, diclofenac, and losartan) in urine matrices. The action route of
Efraím A. Serna-Galvis   +5 more
doaj   +2 more sources

Solid state pelletizing for the synthesis of new Bi-doped strontium molybdate and its development as a photocatalytic precursor for Rhodamine B degradation [PDF]

open access: yesMethodsX, 2023
At present, climate change, urbanization and globalization are the main factors that affect water quality, the primary vehicle for the translocation and permanence of emerging pollutants, resulting in a danger to human health and the environment.
Jorge Acosta-Vergara   +2 more
doaj   +2 more sources

Materials Based on Co, Cu, and Cr as Activators of PMS for Degrading a Representative Antibiotic—The Strategy for Utilization in Water Treatment and Warnings on Metal Leaching [PDF]

open access: yesMolecules, 2023
A chromate of copper and cobalt (Φy) was synthesized and characterized. Φy activated peroxymonosulfate (PMS) to degrade ciprofloxacin (CIP) in water.
Efraím A. Serna-Galvis   +4 more
doaj   +2 more sources

Possibilities and Limitations of the Sono-Fenton Process Using Mid-High-Frequency Ultrasound for the Degradation of Organic Pollutants [PDF]

open access: yesMolecules, 2023
Mid-high-frequency ultrasound (200–1000 kHz) eliminates organic pollutants and also generates H2O2. To take advantage of H2O2, iron species can be added, generating a hybrid sono-Fenton process (sF).
Efraím A. Serna-Galvis   +4 more
doaj   +2 more sources

Inactivation of Giardia intestinalis cysts in water using a sonochemical method based on mid-high-frequency waves [PDF]

open access: yesMethodsX, 2023
Giardia intestinalis is a pollutant of food and water, resistant to conventional disinfection treatments and its elimination requires effective methods action.
Laura María Gómez-Quintero   +5 more
doaj   +2 more sources

A method for modifying carbonaceous materials with manganese carbonate to module the formation of singlet oxygen via activation with Peroxymonosulfate [PDF]

open access: yesMethodsX
This approach examines several agriculture wastes (shell coconut, pseudo-steam banana, potato) as precursors of carbonaceous materials to produce 1O2.
Camila Mosquera-Olano   +8 more
doaj   +2 more sources

Plastid genome of Passiflora tripartita var. mollissima (poro-poro) from Huánuco, Peru [version 3; peer review: 2 approved] [PDF]

open access: yesF1000Research, 2023
Passiflora tripartita var. mollissima, known locally as poro-poro, is an important native fruit used in traditional Peruvian medicine with relevant agro-industrial and pharmaceutical potential for its antioxidant capacity for human health.
Silvia Ana Valverde-Zavaleta   +2 more
doaj   +2 more sources

Understanding the effects of mineral water matrix on degradation of several pharmaceuticals by ultrasound: Influence of chemical structure and concentration of the pollutants [PDF]

open access: yesUltrasonics Sonochemistry, 2021
Degradation of seven relevant pharmaceuticals with different chemical structures and properties: acetaminophen (ACE), cloxacillin (CXL), diclofenac (DCF), naproxen (NPX), piroxicam (PXC), sulfacetamide (SAM) and cefadroxil (CDX), in distilled water and ...
Ana L. Camargo-Perea   +3 more
doaj   +2 more sources

Assessment of the Arsenic Removal From Water Using Lanthanum Ferrite. [PDF]

open access: yesChemistryOpen, 2021
The catalytic performance of lanthanum ferrite LaFeO3 to remove arsenic from water has been investigated for the first time. Fast complete oxidation of As(III) was achieved in 60 min under 254 nm. It is also noteworthy that, after 30 min, >90 % of the initial As(III) is removed. The mechanism of As(III) oxidation to As(V) is discussed.
García FE, Litter MI, Sora IN.
europepmc   +2 more sources

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