Hi, here is data from the experiments. I am a bit curious how to get the qe from this experimental data. Could you please help me to solve this as I want to use this data to study the kinetics of the adsorption? Thank you.
Time (min) Co (ppm) Ct (ppm) qt (mg/g) Ce (ppm) qe (mg/g) ln(qe-qt)
0 100 0 125
5 100 44.6 69.25
15 100 35.46 80.675
30 100 10.62 111.725
60 100 0.29 124.6375
90 100 0.18 124.775
120 100 0.21 124.7375
150 100 0.19 124.7625
Hello i Will suggest you to do nonlinear kinetics. Look at the article below
You should use the mathematical équation to calculate the uptake capacity by using the slope and intercept of the équation genrated
Here is the procedure look at is carefully i think it Will solved your worry
Hello,
could you give the experimental conditions?
Batch, volume, adsorbent quantity?
Keep in mind that Pseudo1st order has the same mathematical expresion as film-diffuision.
Keep in mind, that the kinetic can be controlled either chemical or by diffusion and if with your experiment system diferential between these processes.
You can use the nonlinear equations of the various kinetic models you're considering to calculate the unknown variables which will reduce the approximated error compared to using the linear equations.
Use Excel Solver in MS Excel or any other mathematical tool to solve the non-linear equation for the various kinetic models you're considering.
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