نتایج جستجو برای: wet impregnation
تعداد نتایج: 38345 فیلتر نتایج به سال:
Abstract The objective of this work was to evaluate the photocatalytic activity zinc oxide catalysts supported on natural zeolite clinoptilolite for degradation drug hydroxychloroquine, used in treatment malaria and which has been tested COVID-19. To synthesize 10%ZnOCP 15%ZnOCP catalysts, wet impregnation methodology used. raw synthesized were characterized by XRD, SEM, XRF, BET, DRS, PCZ, FT-...
Fuel oil has a deficit every year. Therefore, substitute fuel is needed, which can be obtained more efficiently. One of the alternative fuels that have been widely researched biofuel. Catalytic cracking method producing biofuels such as biogasoline (C5-C9), bioavtur (C10-C15) and green diesel (C16-C22). This research aims to produce by catalytic palm using HCl/γ-Al2O3 HCl/Ni/γ-Al2O3 catalysts (...
BACKGROUND The Golgi-Cox stain is an established method for characterising neuron cell morphology. The method highlights neurite processes of stained cells allowing the complexity of dendritic branching to be measured. NEW METHODS Conventional rapid Golgi and Golgi-Cox methods all require fresh impregnation in unfixed brain blocks. Here, we describe a modified method that gives high quality s...
Activated carbon was prepared from cattail by H3PO4 activation. The effects influencing the surface area of the resulting activated carbon followed the sequence of activated temperature > activated time > impregnation ratio > impregnation time. The optimum condition was found at an impregnation ratio of 2.5, an impregnation time of 9 hr, an activated temperature of 500 degrees C, and an activat...
Private consumers and professionals may experience acute inhalation toxicity after inhaling aerosolized impregnation products. The distinction between toxic and non-toxic products is difficult to make for producers and product users alike, as there is no clearly described relationship between the chemical composition of the products and induction of toxicity. The currently accepted method for d...
Biogas is one of the main biomass-energy resources. Its use for syngas production with a H2/CO ratio close to 2 would have huge environmental, social and economic impact in the actual energetic scenario. However, the use of dry reforming, where the two main components are transformed into syngas, does not allow the desired H2/CO ratio. For this reason, the addition of water is proposed. The pro...
The modification of fatty substrates using heterogeneous catalysts have extensive industrial application and has an emphatic position in a sustainable context. Herein ruthenium, nickel, cobalt copper-doped supported on hypercrosslinked polystyrene (HPS) were prepared by wet impregnation, characterized applied the canola acid methyl esters (FAME). characterization showed dispersive effect doping...
Abstract Catalysts based on Pd/In were prepared through the wet impregnation method using Al2O3, SiO2, and TiO2 as supports. The impact of synthesis procedure N2 selectivity was studied. Characterization performed X-ray fluorescence scanning electron microscopy–energy dispersive spectroscopy analysis. catalytic performance these materials evaluated for nitrate removal from water in a batch reac...
Modern hip and knee endoprosthesis are produced in titanium and to reduce the friction at the contact area polymer parts, mainly ultra-high molecular weight polyethylene (UHMW-PE), are installed. The polyethylene is impregnated with αtocopherol (vitamin E) before processing for remarkable decrease of oxidative degradation. Cross linked UHMW-PE offers much higher stability, but α-tocopherol cann...
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