نتایج جستجو برای: copper oxide nanoparticle
تعداد نتایج: 276780 فیلتر نتایج به سال:
Instantaneous synthesis of stable zerovalent metal nanoparticles under standard reaction conditions.
In this report is discussed a novel, easy, and general synthesis method to prepare zerovalent iron (ZVI) and copper (ZV Cu) nanoparticles (NPs), from colloid dispersions in an environmental friendly organic solvent, ethylene glycol (EG). Conventional metallic salts are used as nanoparticle precursors; sodium borohydride (NaBH4) is the reducing agent, and triethylamine (TEA) is used as the nanop...
A copper(II)-oxide-based exhaust catalyst exhibits better activity than Pt- and Rh-nanoparticle catalysts in NO remediation at 175 °C. Following theoretical design, the CuO catalyst is rationally prepared; CuO nanoplates bearing a maximized amount of the active {001} facet are arranged in interleaved layers. A field test using a commercial gasoline engine demonstrates the ability of the catalys...
Nanoparticles have received much attention recently due to their use in cancer therapy. Studies have shown that different metal oxide nanoparticles induce cytotoxicity in cancer cells, but not in normal cells. In some cases, such anticancer activity has been demonstrated to hold for the nanoparticle alone or in combination with different therapies, such as photocatalytic therapy or some antican...
Copper Oxide Nanoparticles (CuONPs) show a broad spectrum of antimicrobial activity against various species microorganisms, including gram-positive and gram-negative fungi bacteria, but in general bacteria are more resistant to the effects copper nanoparticle ions than ones. In this work, synthesis oxide nanoparticles has been carried out using laser ablation methods were applied as antibacteri...
Economic optimization of shell and tube heat exchanger (STHE) is presented in this paper. To increase the rate of heat transfer, copper oxide (CuO) nanoparticle is added into the tube side fluid and their optimum results are compared with the case of without additive nanoparticle. Total annual cost (TAC) is selected as fitness function and nine decision variables related to the heat exchanger p...
Background and aims: Carbon monoxide (CO) is a highly toxic, colorless, and odorless gas with a density close to the air, which is produced by natural processes and anthropogenic sources and is well known for its potential harmful and poisonous effects on humans. Inhalation of carbon monoxide gas can impair the heart and central nervous system. Diatomite supported nano copper oxide catalyst w...
به دلیل اهمیت و کاربرد نانوذرات فلزی در اکثر شاخه های مرتبط با فناوری نانو تولید آنها با اندازه مشخص از اهمیت خاصی برخوردار است. در این پایان نامه تلاش شده است اثر ماده کلردار ، امواج مافوق صوت، سنتز در سیستم دو فازی، سورفکتانتهای مختلف، ویسکوزیته و انجام واکنش در حلال آلی بر اندازه ذرات تولید شده به روش تسهیم نامتناسب مطالعه شود. بررسی طیفهای پلاسمون و تصاویر sem نمونه ها ی تولید شده نشان داد ...
the interaction of copper oxide nanoparticles and copper ions and proteinase k from tritirachium album limber has been investigated employing uv spectroscopy and kinetics measurements. the aim of this study was to evaluate the effect of nanoparticles of cuo for proteinase k. in this paper we compare the effect of copper oxide nanoparticles with the effect of copper ions on proteinase k stabilit...
چکیده ندارد.
in order to study the effect of vermicompost containing copper oxide and zinc oxide nanoparticles on was beans, in an experiment factorial were done based on a randomized complete block design in three replications. the experiment treatment were as follows: nanoparticles in 4 levels (0, 0.4, 0.8 and 1.2 g/kg weight of substrate), vermicompost in 3 levels (2.5, 5 and 7.5 g/kg-1 weight of substra...
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