Procion Red Dye Lab Report

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For this lab, zeolite and magnetized zeolite were synthesized and compared with charcoal to find out with would be the most effective in the sequestering of Procion Red dye. Finding the concentration and absorbance of each zeolite, magnetized zeolite, and charcoal, along with a calibration curve, the best adsorbent is determined. Charcoal was the overall best sequestration of the Procion Red dye, since the adsorbent was highest compared to the others. Introduction Pollution has increased in the environment over the years, so the purpose of this experiment is to find the best adsorbent of chemicals to reduce the pollution. Zeolite and magnetized zeolite are synthesized and with charcoal they are used to find which will adsorb Procion Red MX-5B …show more content…

A hot plate was placed under the ring stand. 50 mL of 3.0 M NaOH in a 250 mL beaker and a stir bar was placed in the beaker. The beaker with NaOH was placed on the hot plate and 3.75 grams of NaAlO2*5H2O was placed in the beaker. The temperature probe was placed in the beaker with the solution, not touching the bottom of the beaker. The solution was heated and stirred till the solution dissolved. While the solution dissolved, 50 mL of distilled water was added to a 150 mL beaker and heated on the hot plate. When the solution started to boil 2.65 grams of Na2SiO3*5H2O was added to the beaker with a stir bar and heated to a gentle boil. When both solutions began to boil, the sodium silicate solution was slowly added to the sodium aluminate. The solution was kept at 900C for 60 minutes and stirred with stir bar. After 60 minutes, the zeolite solution was cooled for 5 minutes and for the magnetized zeolite , 0.78 grams of FeCl3 and 0.39 grams of FeSO4*7H2O was added to the flask and stirred until the iron parts dissolved. The magnetized zeolite was then cooled for 5 minutes. For both zeolite and magnetized zeolites, the solutions were placed in two centrifuges with equal amounts of solution and placed in both tubes. The tubes were placed in the centrifuge for 10 minutes at 5000 rpm. The liquid in the tube after the centrifuge was poured into a 200 mL waste …show more content…

Both the Benzo(a) pyrene, example of PAH, and Procion Red MX-5B have thin, benzene ring structures and have flat molecules that allow for adsorption. The flat molecules can be adsorbed by zeolites through intercalations. Intercalation is done by Procion Red dye or the PAH getting stuck in between two other molecules of zeolites or charcoal. A difference between them both is that Procion Red dye has OH bond, sodiums, and nitrogens on the structure where the Benzo(a) pyrene doesn’t have any, but doesn’t have that big of an effect of adsorption. Both of these models do the job of adsorption with their similar

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