نتایج جستجو برای: combustion irradiation technique sol

تعداد نتایج: 715320  

Journal: :Turkish Journal of Chemistry 2022

In this study, photocatalytic degradation of paracetamol (acetaminophen), an analgesic and antipyretic drug, was investigated in using semiconductors under UV-B sunlight irradiation. Semiconductor materials, Bi2O3, ZnO, TiO2, ZrO2, were prepared simple sol-gel, coprecipitation, microwave synthesis methods. These photocatalyts characterized by various spectroscopic other techniques. As a result ...

Journal: :Journal of Superconductivity and Novel Magnetism 2021

Cost-effective and controllable synthesis of M0.25Ni0.15Cu0.25Co0.35Fe2O4 (M2+ = Mg2+, Mn2+, Cd2+) ferrites via the sol–gel auto-combustion technique. The impact divalent cations on structural, dielectric, optoelectrical properties was examined by XRD, FTIR, Raman, LCR, UV–Vis, two probe I-V measurement techniques. crystallite size 52.66 nm, minimum specific surface area observed 5.1507 m2/g fo...

Journal: :Chemical communications 2005
Krisztian Niesz Peidong Yang Gabor A Somorjai

Well-ordered mesoporous alumina materials with high surface area and a narrow pore size distribution were synthesized using a sol-gel based self assembly technique.

Behroz Mirza Khatere Jalili Shokufeh Aghabeygi,

NanoTiO2 , nanoZrO2 and TiO2 /ZrO2 nanocomposite were prepared via sol gel method by using ultrasonic irradiation. The precursor sol of zirconium was prepared from an aqueous solution of ZrCl4 and titanium tetra 2-propoxide was diluted by 2-propanol and deionized water The TiO2 /ZrO2 nanocomposite was synthesized from directly mixing Titanium dried gel into Zirconium gel. The reaction mixture w...

Journal: :Dalton transactions 2016
C Neaime M Amela-Cortes F Grasset M Zakhour Y Molard

The encapsulation of ZnO nanoparticles (5 nm) coated by cyanobiphenyl units by the sol-gel technique leads to spherical ZnO@SiO2 nanoparticles displaying blue emission under UV excitation.

2013
Christophe Massard Muriel Bonnet Philippe Veisseire Yves Sibaud Eric Caudron Komla Oscar Awitor

In this work, the photokilling of Escherichia coli using a “one-pot” synthesized suspension of anatase crystallized nanoparticles is evaluated. Preliminary to the biological tests concerning the antibacterial efficiency, the fabricated suspension, using a derived sol-gel process in soft chemistry condition, is characterized. Structural properties of the nanoparticles are investigated using Elec...

M. Behpour, M. Mehrzad S. M. Hosseinpour-Mashkani

In this research, the thin films of N-S doped titanium dioxide (TiO2) were successfully prepared by simple sol-gel method in the presence of tetrabutylorthotitanate as a starting reagent. Furthermore, titanium dioxide (TiO2) was functionalized with thiourea. Furthermore, N-S doped titanium dioxides (NSTO) were fixed on glass balls by glass balls fixed-bed reactor system. Besides, the effect of ...

Journal: :journal of physical & theoretical chemistry 2013
s. ghasemlou h. aghaie m. monajjemi

hydroxyapatite nanocrystals were synthesized by sol-gel combustion method for the sorption ofhg(ii) ions from aqueous solutions. the effects of varying parameters such as ph, temperature, initialmetal concentration, and contact time on the adsorption process were examined. adsorptionequilibrium was established in 360 minutes and the maximum adsorption of hg(ii) on thehydroxyapatite was observed...

Journal: :Arabian journal for science and engineering 2023

Abstract The photocatalytic performances of three Fe 2 O 3 –CeO nanocomposites were investigated toward the sulfur removal from a petroleum heavy gas oil (HGO) sample. composites prepared by different routes namely; auto-combustion, post-precipitation and precipitation. physio-chemical features optical properties presented determined via proper analytical techniques. Formation solid solution in...

Journal: :Applied radiation and isotopes : including data, instrumentation and methods for use in agriculture, industry and medicine 2011
H Horiguchi T Nakamura H Kumada H Yanagie M Suzuki H Sagawa

Clinical trials of boron neutron capture therapy (BNCT) for recurrent breast cancers are considered at Japan Research Reactor No. 4 (JRR-4). In this study, the irradiation technique for a total mastectomy patient with recurrent cancer was optimized by dosimetric calculations using JAEA computational dosimetry system (JCDS). The evaluation was performed using an en face technique and a tangents ...

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