BET theory

Decent Essays
Improved Essays
Superior Essays
Great Essays
Brilliant Essays
    Page 1 of 50 - About 500 Essays
  • Great Essays

    Congo Red Lab Report

    • 1045 Words
    • 5 Pages

    ZnO/CR were used to investigate the efficiency of the adsorption of MB dye. Coating ZnO nanoparticles by Congo Red dye (ZnO/CR) In coating process, amount of 0.30 g of ZnO dispersed in 200 mL solution of congo red with a concentration of 200 mg/L and stirred for 3.0 hr at pH 3 and temperature of 303 K. The samples were then centrifuged to collect the solids and dried at 45 °C for 12 hr. Characterization of ZnO and ZnO/CR nanoparticles The average pore size and total pore volume of ZnO/CR were determined at 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…

    • 1045 Words
    • 5 Pages
    Great Essays
  • Improved Essays

    Nester and Fester caught one another’s eyes from across the room, almost as if they were discussing the matter through telepathy, looking more and more intrigued by the second. Lana had a strong feeling she had finally found their weakness: their inability to pass up a bet. Nester rubbed his hands together menacingly and his eyebrow rose curiously as his gaze returned to Lana. “What sort of bet did you have in mind?” Lana thought for a moment. She could challenge them to a race, but that would…

    • 1401 Words
    • 6 Pages
    Improved Essays
  • Improved Essays

    A life of “little bets” As I brainstormed to determine the feedback direction for Module 1, a single thought kept creeping in my head: “Wow, this was like when I did blank”. I have to admit, = my entire life has been a series of “Little Bets”, even prior to my birth. This may sound odd, but truly I have a life that is stranger than fiction;the following will entail how my life, Rebecca Anniversary Merry-Pruss has been a trail of “little bets”. I remember my mother telling me about her…

    • 1498 Words
    • 6 Pages
    Improved Essays
  • Improved Essays

    physically fit, and I have no money, which means I can no longer acquire the companionship that I used to. In the first six stanzas, the drunken woman brags about everything she used to have. Being someone who has over indulged, I have told many stories of my ostentatious and extravagant past experiences. Like the drunken woman in the poem, I have dined at expensive restaurants, have stayed in fancy hotels, and have driven and owned many luxury vehicles. The last four stanzas discuss her…

    • 706 Words
    • 3 Pages
    Improved Essays
  • Improved Essays

    Ive been asked by alot on how to build there bank rolls, the key is long term profit. We are not going to get rich overnight! My best advice , to building is set your self a realistic limit for what you want to achieve each day. example: would be say to make a $30 profit every day 30x 7 days a week= $210 a week . Once you achieve your set goal, stop for the day regardless of how many wins may come. Dont up your stakes due to wins coming in, greed is what will kill you. Bet somthing your…

    • 712 Words
    • 3 Pages
    Improved Essays
  • Improved Essays

    Wolf Run Research Paper

    • 779 Words
    • 4 Pages

    Run also features a fitting soundtrack with a thrilling sound played when the reels are spun and when a winning combination is formed. Even the title of the game is loaded with creativity as the “O” has been replaced with a wolf paw. Element for element, while the production values might be dated, there is no denying that Wolf Run still holds up well in the looks department. Sprinting Through the Tress To get the most out of this game, you’ll need to play with all 40 paylines, but don’t forget…

    • 779 Words
    • 4 Pages
    Improved Essays
  • Improved Essays

    If you happen to run more than every once in a while, there’s a decent chance that you have contemplated buying a treadmill. Forgoing on that costly gym membership and avoiding the winter cold or summer heat is a smart decision for anyone serious about running. But, which treadmill should the serious runner buy? A non folding treadmill will be the best bet for anybody who regularly runs. While a folding treadmill can save a bit of space, it is of no help to be continually pulling it out every…

    • 979 Words
    • 4 Pages
    Improved Essays
  • Improved Essays

    philosophical and scientific problem that has been debated since ancient Greece. The pursuit of discerning between the way things are and the way they appear to be is one driven by the human desire to understand. Appearances can mask reality and skew one’s perception of reality. A group of early Greek philosophers and teachers, known as the Sophists, proposed that reality did not exist, and if it did, it was beyond human comprehension. They believed in relativism and sought to solve practical…

    • 956 Words
    • 4 Pages
    Improved Essays
  • Superior Essays

    accurate, so it’s the investigators job to be able to discover out what information given is actually valuable. One of the most important and reliable way to find information is through physical evidence, whether its blood, fingerprints, or even remains. This ties in with the scientific method because once the evidence is found, forensics comes into play to find out whose blood, fingerprints or remains belonged too. Even though records can be a form of physical evidence, it can be seen in a…

    • 1016 Words
    • 5 Pages
    Superior Essays
  • Improved Essays

    this observational study is to gain perspective of the various theories of development that were taught in class. Also, to help the observer understand that observational research is complex and difficult to describe a five-year-old female child objectively. The observation took place in the child’s home for one hour while her parents were present during the study thus, the mother can sign the permission slip. Descriptive information The child observed was 5 years old named Kerly Lopez, she is…

    • 1107 Words
    • 5 Pages
    Improved Essays
  • Previous
    Page 1 2 3 4 5 6 7 8 9 50