Objective
Today's objectives include:
- Continue UV Vis on 30% bentonite sln beads
- Continue UV Vis on 40% bentonite beads
- Make 70% beads
Protocol
Testing the 30% and 40% sln bentonite beads
The 30% (sln) and 40% bentonite beads were tested using the same method as that from before.
70% PVA/bentonite bead synthesis
The synthesis of 70% bentonite beads was prepared using the same procedure from the 21st using the following reagents: 58.33mL of 3% by weight bentonite solution, 21.42mL of conc. HCL, 0.25mLs of DI water, and 2.5 g PVA.
Data
Table 1: Adsorption/desorption results of the 30% sln bentonite beads
Compared to the 30% dry bentonite beads (results for those shown here), the 30% sln bentonite beads had a much higher capacity. This is likely due to fully saturating the bentonite before making them by allowing the solution to stir for a few days. Moving forward, we will only make bentonite beads using the 3% by weight solution.
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