User:Michael S. Bible/Notebook/581/2014/09/17: Difference between revisions
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|style="background-color: #EEE"|[[Image:BDLlogo_notext_lr.png|128px]]<span style="font-size:22px;"> Biomaterials Design Lab</span> | |style="background-color: #EEE"|[[Image:BDLlogo_notext_lr.png|128px]]<span style="font-size:22px;"> Biomaterials Design Lab</span> | ||
|style="background-color: #F2F2F2" align="center"| | |style="background-color: #F2F2F2" align="center"|[[File:Report.png|frameless|link={{#sub:{{FULLPAGENAME}}|0|-11}}]][[{{#sub:{{FULLPAGENAME}}|0|-11}}|Main project page]]<br />{{#if:{{#lnpreventry:{{FULLPAGENAME}}}}|[[File:Resultset_previous.png|frameless|link={{#lnpreventry:{{FULLPAGENAME}}}}]][[{{#lnpreventry:{{FULLPAGENAME}}}}{{!}}Previous entry]] }}{{#if:{{#lnnextentry:{{FULLPAGENAME}}}}|[[{{#lnnextentry:{{FULLPAGENAME}}}}{{!}}Next entry]][[File:Resultset_next.png|frameless|link={{#lnnextentry:{{FULLPAGENAME}}}}]]}} | ||
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== | ==Today's Agenda== | ||
*Measure MG new data through UV-Vis | *Measure MG new data through UV-Vis | ||
*Film Processing | *Film Processing | ||
*Filter stirring clay in | |||
**4000rpm for 30 minutes at | *Filter stirring clay in centrifuge | ||
**with water then ethanol for 10 minutes | **4000rpm for 30 minutes at 4°C for original separation | ||
**repeat for another cycle and | **rinse with water then ethanol for 10 minutes | ||
**repeat for another cycle and drying done by Dr. Hartings | |||
[[User:Tamanika_Tinsley/Notebook/Chem_581_Biomaterials_Design_Lab/2014/09/17|Tami]] centrifuged the organic cation-exchanged clay solution that we started synthesizing on [[User:Michael_S._Bible/Notebook/581/2014/09/10|September 10th]] | |||
==PXRD== | ==PXRD== | ||
*Set up PXRD of PVA+Clay films at different concentrations. | *Set up PXRD of PVA+Clay films at different concentrations. | ||
*Tray 1 -Clay powder-control | **Tray 1 -Clay powder-control | ||
*Tray 2 -8ppm by Madeleine | **Tray 2 -8ppm prepared by Madeleine's group | ||
*Tray 3 -2ppm by | **Tray 3 -2ppm prepared by Jake's group | ||
*Tray 4 -PVA film-control | **Tray 4 -PVA film-control | ||
*Tray 5 -80ppm by Eleni | **Tray 5 -80ppm prepared by Eleni's group | ||
*Tray 6 -200ppm by | **Tray 6 -200ppm prepared by our group | ||
*** Instrument Settings | |||
**** 2<sup>o</sup> start angle | |||
**** 40<sup>o</sup> stop angle | |||
**** 1<sup>o</sup>/second scan speed (this seems too fast, will check on this) | |||
**** 0.5<sup>o</sup> sampling width | |||
==Calculations== | ==Calculations== | ||
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**80ppm*0.5mL=8ppm*5mL(vial with no film) | **80ppm*0.5mL=8ppm*5mL(vial with no film) | ||
**80ppm*0.2mL=8ppm*2mL(vial with PVA film) | **80ppm*0.2mL=8ppm*2mL(vial with PVA film) | ||
==Figures== | |||
Figure 1. Shows the separation of the clay after the first washing of water. | |||
[[Image:washing1.png]] | |||
Figure 2. Shows the dried clay being collected for future testing. | |||
[[Image:dry.png]] | |||
==Results== | ==Results== | ||
UV-Vis was performed on the solutions of MG started on [[User:Michael_S._Bible/Notebook/581/2014/09/12|September 12]] and the results can be found in the graph and chart below. | |||
[[Image:Uvavis.png]] | [[Image:Uvavis.png]] | ||
[[Image:ICE table PVA+control.png]] | [[Image:ICE table PVA+control.png]] | ||
The concentration of MG in the film was calculated in the following way: | |||
(Initial ppm)(.010L) = (Initial mass of MG in 10 mL of solution, mg) | |||
[(Solution Absorbance post-experiment)/(molar abosorptivity of Malachite Green according to calibration curve from [[User:Michael_S._Bible/Notebook/581/2014/09/03| September 3rd]] = 0.1193/ppm)]x(Volume = 0.01L) = (Final mass of MG in solution, mg) | |||
[(Initial mass of MG in Solution)-(Final mass of MG in solution, mg)]/(initial mass of film) = (Concentration of MG in film, mgMG/gFilm) | |||
==Notes== | |||
<u>Exfoliated Clay Film</u> | |||
During the second phase of film synthesis today,a beaker of heating Sodium Sulfate was spilled in the hood and shorted the electricity. As a result, the following differences in protocol occurred today: | |||
* The sodium sulfate solution was kept at room temperature with no stirring | |||
* When transferred to HCl solution, the temperature fluctuated between 75°C and 90°C with stirring | |||
* Sodium bicarbonate solution was not stirred | |||
Latest revision as of 00:19, 27 September 2017
 Biomaterials Design Lab
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 Main project page Previous entry Next entry
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Today's Agenda
Tami centrifuged the organic cation-exchanged clay solution that we started synthesizing on September 10th PXRD
Calculations
FiguresFigure 1. Shows the separation of the clay after the first washing of water.
Figure 2. Shows the dried clay being collected for future testing.
ResultsUV-Vis was performed on the solutions of MG started on September 12 and the results can be found in the graph and chart below.
The concentration of MG in the film was calculated in the following way:
NotesExfoliated Clay Film During the second phase of film synthesis today,a beaker of heating Sodium Sulfate was spilled in the hood and shorted the electricity. As a result, the following differences in protocol occurred today:
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