User:Mobeen Ashraf/Notebook/Chem-581/2012/11/02

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(Autocreate 2012/11/02 Entry for User:Mobeen_Ashraf/Notebook/Chem-581)
Current revision (18:18, 30 November 2012) (view source)
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==Objective==
==Objective==
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Objective 1) Prepare 3 PVOH Films (plain MW 22,000, glutaraldehyde cross-linked, and porphyrine dihydrogen chloride cross-linked.  
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* Make 1:1 ratio of sulfate ions solution ( H2SO4, Fe2(SO4)3, FeSO4, Na2SO4, Al2(SO4)3).  
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Objective 2) Atomic Absorption Spectroscopy for all Cu standards.
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* Adsorption through films similar to clay films instead of clay :
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**1.04 g Fe(II) Cl, 0.5 g Iron Sulfate, 1 film, and 40 ml H2O.
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**To precipitate iron oxide out of the solution NaOH ( 2.67 g in 10 ml H2O) was added drop wise with stirring.
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**The solution was then filtered using vacuum filtration and left to dry.
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* Add film with Porphyrin and glutaraldehyde to 1% solution of HCl and leave out until the next working day.
==Description==
==Description==
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* 3 PVOH films were prepared: 0.5 g MW of 22,000, 1 ml glutaraldehyde, and 1 ml of porphrine dihydrogen chloride.  
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Sulfate (SO4 2-) as generated by the following solutions along with the porphyrin solution were prepared. The absorbance was measured for each one between by using the UV-Vis instrument by Shimadzu and the selected wavelength range in nm was [200 nm- 800 nm]:
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* AAS studies for all the Cu standards: NaMT- concentration of 1.25 g/500 ml, for 1min, 5 min and 10 mins standards, 50 % CEC exchange-concentration of 1.25 g/500 ml, for 1 min, 5 min and 10 mins standards, 100% CEC exchange, for 1 min, 5 min and 10 mins standards, and Fe3O4-concentration of 1.25 g/500 ml, for 1 min, 5 min and 10 mins standards.
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==Data==
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* 1mL of 50μM Na2SO4 was dissolved in a 1mL of 5μM porphyrin solution and 2 mL HPLC graded water was used
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* Add data and results here...
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==Notes==
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* 1mL of 50μM Fe2(SO4)3 was dissolved in a 1mL, 5μM porphyrin solution and 2 mL HPLC graded water was used
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This area is for any observations or conclusions that you would like to note.
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* 1mL of 50μM FeSO4 was dissolved in a 1mL, 5μM porphyrin solution and 2 mL HPLC graded water was used
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Use categories like tags. Change the "Course" category to the one corresponding to your course. The "Miscellaneous" tag can be used for particular experiments, as instructed by your professor. Please be sure to change or delete this tag as required so that the categories remain well organized.
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* 1mL 50μM H2SO4 was dissolved in a 1mL, 5μM porphyrin solution and 2 mL HPLC graded water was used
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[[Category:Course]]
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* 1mL 50μM Al2(SO4)3 was also dissolved in a 1mL of a porphyrin solution and 2 mL HPLC graded water was used.
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[[Category:Miscellaneous]]
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==Data==
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[[Image:UV-VIS_Curve_for_Porphyrin_sulfate_solutions..png]]
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==Notes==
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'''Note: The graph in the data section is a courtesy of Allison Alix.
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'''

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Objective

  • Make 1:1 ratio of sulfate ions solution ( H2SO4, Fe2(SO4)3, FeSO4, Na2SO4, Al2(SO4)3).
  • Adsorption through films similar to clay films instead of clay :
    • 1.04 g Fe(II) Cl, 0.5 g Iron Sulfate, 1 film, and 40 ml H2O.
    • To precipitate iron oxide out of the solution NaOH ( 2.67 g in 10 ml H2O) was added drop wise with stirring.
    • The solution was then filtered using vacuum filtration and left to dry.
  • Add film with Porphyrin and glutaraldehyde to 1% solution of HCl and leave out until the next working day.

Description

Sulfate (SO4 2-) as generated by the following solutions along with the porphyrin solution were prepared. The absorbance was measured for each one between by using the UV-Vis instrument by Shimadzu and the selected wavelength range in nm was [200 nm- 800 nm]:

  • 1mL of 50μM Na2SO4 was dissolved in a 1mL of 5μM porphyrin solution and 2 mL HPLC graded water was used
  • 1mL of 50μM Fe2(SO4)3 was dissolved in a 1mL, 5μM porphyrin solution and 2 mL HPLC graded water was used
  • 1mL of 50μM FeSO4 was dissolved in a 1mL, 5μM porphyrin solution and 2 mL HPLC graded water was used
  • 1mL 50μM H2SO4 was dissolved in a 1mL, 5μM porphyrin solution and 2 mL HPLC graded water was used
  • 1mL 50μM Al2(SO4)3 was also dissolved in a 1mL of a porphyrin solution and 2 mL HPLC graded water was used.

Data

Image:UV-VIS_Curve_for_Porphyrin_sulfate_solutions..png

Notes

Note: The graph in the data section is a courtesy of Allison Alix.



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