I want to determine the zero point charge of activated carbon. So which is the best suitable method for it and is it neccessary to degasify the solution while measuring the final pH in order to prevent any change in pH value by dissolving carbon dioxide from the air?
Thankyou for your reply. In your papers, the method of zero point charge has been described very nicely.But i have one more confusion i.e at what temperature should the solution be kept in shaker? Does the zero point charge depend on the temperature and for how much time should the solutions be kept in shaker? In your paper it's mentioned that the process reaches to equilibrium after a contact time of 15 min, so what should be the maximum time the suspensions should be kept at?
I have one question for Hai Tran concerning the pre treatments. I have read in your paper that the carbon was grounded and sieved. Did you assumed that the carbon was totally free from impurities (like alkali metals) that can leach in the solution changing the real starting pH? Is it recommendable a deep washing of the carbon before applying the drift method?
- Badges
- Science topic
- Similar topics
- Biological Science
- Biochemistry
- Biochemical Techniques
- Analytical Chemistry
- pH