2.4.2. Breakthrough curve prediction experiment
The experiment was done by concentrating pure TCO in n-hexane to a
volume of 12.75 ml. Then 0.02141 g 1,3,5 trimethoxybenzene (internal
standard for 1H-NMR) was added. Based on the1H-NMR result, the amount of TCO was calculated which
was equal to 0.04 g (0.028 mol/dm3). Then the solution
was diluted to 20 ml ([TCO], 0.018 mol/dm3). The
packed bed (stainless steel, ID 4.5 mm, L 25 mm) was packed with 0.2 g
AgNO3/silica and 0.12 g glass beads (1 mm), similarly to
the previous section. The inlet solution is pumped through the packed
bed at the flow rate of 1 ml/min. The outlet of the packed bed was
connected to a FEP tube, from which samples were collected for analyses.
All packed bed space times have been determined assuming a bed porosity
of 0.5.