Specific surface area

77.4K by nitrogen adsorption isotherm using Micromerities ASAP2010.was used to calculate the specific surface areas of The value of specific surface area of ZnO and ZnO/CR samples determined from the method Brunauer–Emmett–Teller (BET)[13]. Scanning electron microscopy/Energy-dispersive X-ray spectroscopy employed to analyze the size, morphology and structures of the ZnO and ZnO/CR nanoparticles. The elemental analysis of both ZnO and ZnO/CR were determined by SEM-EDS using ZAF method standardless quantitative analysis [14]. The crystal structure of ZnO and ZnO/CR was investigated by X-ray diffraction (XRD)using = 0.1542 nm and 2 values started from 10 to 80. In addition the structural properties of ZnO and ZnO/CR were analyzed by Shimadzu FTIR spectrometer (from400 to 4000 cm-1) at room temperature. pH values measured by pH meter (HANNA). Perkin Elmer Lambda 35,UV–vis spectrophotometer was used for determining [MB] and [CR] samples employing the standard calibration curve of MB and CR at the maximum wavelengths 665 nm and 495nm, respectively. Uptake Procedures Specific procedures were performed to study the uptake of MB onto the surface of ZnO and /or ZnO/CR as an adsorbents .Known amount (1g) of each MB and CR dyes dissolved in 1L of H2O to prepare their stock solutions which used for preparing the Standard calibration curves and carryout adsorption experiments using specific mass of ZnO and or/ZnO/CR. During the batch experiments, sample solutions were added to…

At first, as I was examining the image of the swimmer, I thought about determining the area between the swimmer’s legs. At first, I thought that I could relate it to the area of a triangle, but later acquired the fact that the side length and height of an isosceles triangle cannot be equivalent, which meant that the area of a triangle would not fit this image. Figure 2 Created in Microsoft Paint In Figure 2, I have attempted to display an isosceles triangle to put in place of the swimmer's…

surface area vs rate of time Introduction: In the investigation an experiment is conducted investigate if the breaking of alka seltzer into ½, ¼ and none effect the time it dissolves. The context of the problem is the time it dissolves to have the medicine show its effect. This problem exist in real life as people take alka seltzer to relief heartburn, acid digestion and stomach aches. This experiment would benefit society because it informs the society the better way of consuming medicine or…

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Moisture Problems Like a sponge, concrete has pores through which moisture penetrates. If the ground below your concrete garage floor is wet, this moisture will wick through to its top surface and evaporate. Sometimes this problem is obvious because parts of the floor appear damp even on low humidity days. Another sign is the presence of a white powdery deposit called efflorescence. When water migrates through the concrete, it carries dissolved salts, which are left behind on the…

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When To Apply A Sealcoat On Your Asphalt Driveway So It's Protected From The Sun And Rain Sealcoating is an important part of driveway maintenance. A sealcoat helps your asphalt driveway have a longer life and maintain it's dark color. It acts as a barrier against rain and UV rays. Here are some tips on when it's a good time to have a sealcoat applied to your driveway. Several Months After It's Poured You'll want to have a sealcoat put on your new driveway as soon as it's ready so protection…

Floors Hardwood flooring is not something you can ignore, since it requires some maintenance to keep it looking good. Here is what you need to know about cleaning hardwood, repairing scratches, and adding a protective finish. Cleaning Cleaning your hard flooring is not difficult to do as long as you know what kind of finish the floor has. This step is essential before repairing or protecting your hardwood floors. Surface Sealed Hardwood Hardwood sealed with polyurethane, polyacrylic, or…