نتایج جستجو برای: sonolysis
تعداد نتایج: 161 فیلتر نتایج به سال:
In this study, the ultrasonic, photocatalytic and sonophotocatalytic degradation of organics in textile industrial effluent was studied using ZnO nano catalyst, ZnO nano catalyst was synthesized by using sol-gel method. The structure and morphology of the catalyst were investigated using scanning election microscopy (SEM), electron dispersive X-ray spectroscopy (EDS) and X-ray <span id="transma...
Microbial contamination of water poses a major threat to public health. With the emergence of microorganisms resistant to multiple antimicrobial agents, there is increased request for promotion of disinfection methods. Since ultrasound wave (US) exhibits antibacterial activities on bacteria, the aim of this study was to evaluate the antimicrobial effect of low frequency (37 kHz) ultrasound on P...
in this study, the ultrasonic, photocatalytic and sonophotocatalytic degradation of organics in textile industrial effluent was studied using zno nano catalyst, zno nano catalyst was synthesized by using sol-gel method. the structure and morphology of the catalyst were investigated using scanning election microscopy (sem), electron dispersive x-ray spectroscopy (eds) and x-ray diffraction patte...
The emphasis on climate change requires processes to be more efficient minimize CO2 emissions, and nanostructured materials as catalysts could play a crucial role due their high surface area per unit volume. Herein, we report the synthesis of silica microspheres (450–600 nm) using modified Stober process, which iron oxide clusters were deposited by sonolysis pentacarbonyl yield material (Si-Fe)...
*Corresponding author's address: School of Chemistry, The University of Melbourne, Grattan st, Parkville, 3010, Victoria, Australia, [email protected] It has long been known that the primary radicals generated in water (∙H and ∙OH), on the collapse of acoustic bubbles, largely recombine. It has been estimated that as much as 90% react within the bubble to produce molecular hydrogen, hydrog...
background: carbaryl (1-naphthyl-n-methyl carbamate) is a chemical in the carbamate family used chiefly as an insecticide. it is a cholinesterase inhibitor and is toxic to humans and classified as a likely human carcinogen. in the present study, the degradation of the carbaryl pesticide was investigated in the laboratory synthetic samples of tap water, in the effect of sonolysis and photolysis ...
Oxidation of Cr(III) during sonication in carbonated aqueous solutions saturated with CCl4 leads to the quantitative formation of Cr(VI) and provides a simple and rapid method for spectrophotometric chromium determination with 1,5-diphenylcarbazide. The key to this method is the production of chlorine radicals when aqueous solution saturated with CCl4 is exposed to ultrasonic waves of 40 kHz. T...
Cancer Res 2012;72:3652– 63 7. McDannold N, Clement GT, Black P, et al. Transcranial magnetic resonance imaging-guided focused ultrasound surgery of brain tumors: initial findings in 3 patients. Neurosurgery 2010;66:323–32 8. Jeanmonod D, Werner B, Morel A, et al. Transcranial magnetic resonance imaging-guided focused ultrasound: noninvasive central lateral thalamotomy for chronic neuropathic p...
OBJECT Catheter-based evacuation is a novel surgical approach for the treatment of brain hemorrhage. The object of this study was to evaluate the safety and efficacy of ultrasound in combination with recombinant tissue plasminogen activator (rt-PA) delivered through a microcatheter directly into spontaneous intraventricular (IVH) or intracerebral (ICH) hemorrhage in humans. METHODS Thirty-thr...
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