User:Eleni N. Kalivas/Notebook/CHEM-571/2015/02/11: Difference between revisions

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|style="background-color: #EEE"|[[Image:owwnotebook_icon.png|128px]]<span style="font-size:22px;"> Project name</span>
|style="background-color: #EEE"|[[Image:owwnotebook_icon.png|128px]]<span style="font-size:22px;"> PVA-Alg Bead Synthesis</span>
|style="background-color: #F2F2F2" align="center"|<html><img src="/images/9/94/Report.png" border="0" /></html> [[{{#sub:{{FULLPAGENAME}}|0|-11}}|Main project page]]<br />{{#if:{{#lnpreventry:{{FULLPAGENAME}}}}|<html><img src="/images/c/c3/Resultset_previous.png" border="0" /></html>[[{{#lnpreventry:{{FULLPAGENAME}}}}{{!}}Previous entry]]<html>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;</html>}}{{#if:{{#lnnextentry:{{FULLPAGENAME}}}}|[[{{#lnnextentry:{{FULLPAGENAME}}}}{{!}}Next entry]]<html><img src="/images/5/5c/Resultset_next.png" border="0" /></html>}}
|style="background-color: #F2F2F2" align="center"|<html><img src="/images/9/94/Report.png" border="0" /></html> [[{{#sub:{{FULLPAGENAME}}|0|-11}}|Main project page]]<br />{{#if:{{#lnpreventry:{{FULLPAGENAME}}}}|<html><img src="/images/c/c3/Resultset_previous.png" border="0" /></html>[[{{#lnpreventry:{{FULLPAGENAME}}}}{{!}}Previous entry]]<html>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;</html>}}{{#if:{{#lnnextentry:{{FULLPAGENAME}}}}|[[{{#lnnextentry:{{FULLPAGENAME}}}}{{!}}Next entry]]<html><img src="/images/5/5c/Resultset_next.png" border="0" /></html>}}
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==Entry title==
==February 11, 2015==
* Insert content here...
*New syntheses: activated carbon and zeolite


===Procedure===
Procedure adapted from [http://onlinelibrary.wiley.com/doi/10.1002/bit.260390411/abstract | Kuo-Ying Amanda Wu and Keith D. Wisecarver (1992)]<br.>
# Prepare an aqueous solution of 13% PVA and 0.02% sodium alginate at 60°C (Stir plate on 3rd setting: ~68°C)
#* 1 gram of PVA and 0.16 g of sodium alginate in 7 mL of water (12.5% PVA and ~0.02% alginate)
##* Add alginate '''while stirring''' PVA-water solution
#* ~0.1 g of nanocomposite should be added to this mixture where applicable
# Cool dissolved and mixed solution to 35°C
# Prepare 210 mL of saturated citric acid with 4% calcium chloride
## Add 8.4 grams (4%) of calcium chloride to 210 mL of water
## Add citric acid to saturation (12-15 g citric acid)
##* 14.7g/100mL > 30.87 g/210 for solubility comparable to boric acid
# Add the PVA-Alg-Nanocomposite mixture drop-wise (by syringe) to the gently stirring (stir plate 3) citric acid-calcium chloride solution using a Pasteur pipette
# Stir for 2 hrs to allow solidification
# Rinse with water to remove excess reactants
====Measurements====
*PVA-Alg-AC
**PVA: 1.001 g
**Alg: 0.163 g
**AC: 0.107 g
**Citric acid: 14.19 g
**CaCl<sub>2</sub>: 8.667 g
*PVA-Alg-Zeolite
**PVA: 1.11 g
**Alg: 0.162 g
**Zeolite: 0.105 g
**Citric acid: 13.679 g
**CaCl<sub>2</sub>: 8.385 g
====Results====
[[Image:2015_0211_PVA_Alg_NaMT_rehydration_MG_abs.PNG]]<br.>
====Notes====
*Activated carbon coated PVA-Alg matrix, burst upon contact with anything
*Zeolite beads disintegrated
*New plan: focus on NaMT
**Friday: big batches of NaMT, try batch of NaMT+AC (to integrate AC into structure)


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Revision as of 10:28, 11 February 2015

PVA-Alg Bead Synthesis <html><img src="/images/9/94/Report.png" border="0" /></html> Main project page
<html><img src="/images/c/c3/Resultset_previous.png" border="0" /></html>Previous entry<html>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;</html>Next entry<html><img src="/images/5/5c/Resultset_next.png" border="0" /></html>

February 11, 2015

  • New syntheses: activated carbon and zeolite

Procedure

Procedure adapted from | Kuo-Ying Amanda Wu and Keith D. Wisecarver (1992)<br.>

  1. Prepare an aqueous solution of 13% PVA and 0.02% sodium alginate at 60°C (Stir plate on 3rd setting: ~68°C)
    • 1 gram of PVA and 0.16 g of sodium alginate in 7 mL of water (12.5% PVA and ~0.02% alginate)
      • Add alginate while stirring PVA-water solution
    • ~0.1 g of nanocomposite should be added to this mixture where applicable
  2. Cool dissolved and mixed solution to 35°C
  3. Prepare 210 mL of saturated citric acid with 4% calcium chloride
    1. Add 8.4 grams (4%) of calcium chloride to 210 mL of water
    2. Add citric acid to saturation (12-15 g citric acid)
      • 14.7g/100mL > 30.87 g/210 for solubility comparable to boric acid
  4. Add the PVA-Alg-Nanocomposite mixture drop-wise (by syringe) to the gently stirring (stir plate 3) citric acid-calcium chloride solution using a Pasteur pipette
  5. Stir for 2 hrs to allow solidification
  6. Rinse with water to remove excess reactants

Measurements

  • PVA-Alg-AC
    • PVA: 1.001 g
    • Alg: 0.163 g
    • AC: 0.107 g
    • Citric acid: 14.19 g
    • CaCl2: 8.667 g
  • PVA-Alg-Zeolite
    • PVA: 1.11 g
    • Alg: 0.162 g
    • Zeolite: 0.105 g
    • Citric acid: 13.679 g
    • CaCl2: 8.385 g

Results

<br.>

Notes

  • Activated carbon coated PVA-Alg matrix, burst upon contact with anything
  • Zeolite beads disintegrated
  • New plan: focus on NaMT
    • Friday: big batches of NaMT, try batch of NaMT+AC (to integrate AC into structure)


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