I have been cleaning my biochar for 4 days now! It's hard to make it 0.00 adsorbance in the UV-vis. Worse, it was at 0.019 already before but after cleaning again it became 0.038! I do not know why it went up. hmm.
How do you clean your biochar prior to experiment?
Please help me.
Thank you!
Biochar cleaning with deionized (DI) water takes time because it involves the removal of contaminants through physical and chemical processes. The porous structure of biochar traps pollutants, requiring thorough flushing with DI water to displace them effectively. Additionally, the adsorption of contaminants onto biochar surfaces can be strong, necessitating prolonged rinsing to achieve complete removal. Furthermore, the efficiency of cleaning depends on factors such as biochar properties, contaminant types, and water flow rates, which can influence the duration of the cleaning process.
I've no experience, and guess that the answer depends on what you intend to use the biochar for and where the absorbance falls
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