Informative video sir. Sir could you explain when pzc cuts 6.5 and dye decolourisation occurs at 8 when dye solution is anionic what is the surface charge of the biosorbent?
Thank you for your question! When the point of zero charge (pzc) of the biosorbent is at pH 6.5, it means the surface is neutral at this pH. At pH values above the pzc (e.g., pH 8), the surface of the biosorbent becomes negatively charged. Since the dye solution is anionic, this negative surface charge at pH 8 would repel anionic dye molecules, potentially impacting dye decolorization efficiency.
Thanks for the appreciation, pH shall be adjusted the 0.1M HCl or NaOH, it shall need just a few drops, however if your volume increases then you can adjust the amount of absorbent accordingly
Thank you for this video. Can you explain why you decided to use about 30mg as the sorbent? is the mass of the sorbent crucial? I tried doing the PZC of hematite with about 0.1g hematite for 0.6g Nacl solution and got a wrong PZC.
Thank you for reaching out. The reason we used 30 mg of the adsorbent is that our adsorbent dose was set at 1 mg/mL. This means our 0.1M NaCl solution was 30 mL, and we added 30 mg of the adsorbent to this solution. In your case, you should adjust the sorbent mass accordingly. The mass of the sorbent is critical in adsorption experiments because it directly affects the available surface area for adsorption and the interaction between the adsorbent and adsorbate. When determining the Point of Zero Charge (PZC), using an appropriate amount of adsorbent ensures accurate and reliable measurements. If too little or too much adsorbent is used, it can lead to incorrect PZC values. In your experiments, you should try different sorbent masses to find the optimal amount that gives consistent and accurate PZC readings. Additionally, make sure that all experimental conditions are consistent and well-controlled. I hope this helps! If you have any more questions, feel free to ask.
Thank you so much for an informative comment, I shall try to use the cluster method as well. You are wonderful Dr. Wazir! Wonderful people leave wonderful comments-I'm truly grateful to have viewers like you.
The solution which u r using and the pH of that solution. You need to adjust the pH of the solution which u r using. In this case the 0.1M NaCl solution. You have to adjust the pH
In the context of nanoparticles, the ZPC can be influenced by various factors, including the surface chemistry and composition. If two NP are prepared under different conditions, such as different synthesis methods or varying reaction parameters, it is possible that their ZPC values could be different. The ZPC is influenced by the surface functional groups and charges on the nanoparticles, which can be affected by the synthesis conditions. However, it's not guaranteed that the ZPC will always be different for nanoparticles prepared under different conditions, it can be same and different. The relationship between synthesis conditions and the surface properties of nanoparticles can be complex, and factors like the choice of stabilizers, reaction time, temperature, and other parameters can play a role. Hope it could solve the confusion...:)
"Thank you for your comment, Torphy Hill! I'm glad you found the video interesting. If you have any questions or need further clarification, feel free to ask!"
informative video. keep sharing best of knowledge
I’m glad you appreciated it, thanks😀
Informative video sir. Sir could you explain when pzc cuts 6.5 and dye decolourisation occurs at 8 when dye solution is anionic what is the surface charge of the biosorbent?
Thank you for your question!
When the point of zero charge (pzc) of the biosorbent is at pH 6.5, it means the surface is neutral at this pH. At pH values above the pzc (e.g., pH 8), the surface of the biosorbent becomes negatively charged. Since the dye solution is anionic, this negative surface charge at pH 8 would repel anionic dye molecules, potentially impacting dye decolorization efficiency.
Good work ustad
Thank you so much! Wonderful people leave wonderful comments-I'm truly grateful to have viewers like you.
Thaks from Brazil /o/
Thank you so much! Wonderful people leave wonderful comments-I'm truly grateful to have viewers like you.
Thank you for this informative video. If we take 20 ml 0.1M Nacl solution with different PH then 20 mg adsorbent will be added? Is it?
yes, u r absolutely right, cheers
Informative video by you. I have a question, if we will add 30ml of 0.1 M solution in each flask then how will we adjust the pH @ different values?
Thanks for the appreciation, pH shall be adjusted the 0.1M HCl or NaOH, it shall need just a few drops, however if your volume increases then you can adjust the amount of absorbent accordingly
and it shall be 0.1 M NaCl whose pH shall be adjusted with acid or base accordingly
Nice❤❤❤
Thanks 🤗
Thank you for this video. Can you explain why you decided to use about 30mg as the sorbent? is the mass of the sorbent crucial? I tried doing the PZC of hematite with about 0.1g hematite for 0.6g Nacl solution and got a wrong PZC.
Thank you for reaching out. The reason we used 30 mg of the adsorbent is that our adsorbent dose was set at 1 mg/mL. This means our 0.1M NaCl solution was 30 mL, and we added 30 mg of the adsorbent to this solution.
In your case, you should adjust the sorbent mass accordingly. The mass of the sorbent is critical in adsorption experiments because it directly affects the available surface area for adsorption and the interaction between the adsorbent and adsorbate. When determining the Point of Zero Charge (PZC), using an appropriate amount of adsorbent ensures accurate and reliable measurements. If too little or too much adsorbent is used, it can lead to incorrect PZC values.
In your experiments, you should try different sorbent masses to find the optimal amount that gives consistent and accurate PZC readings. Additionally, make sure that all experimental conditions are consistent and well-controlled.
I hope this helps! If you have any more questions, feel free to ask.
@@drsaqibscienceacademy Thank you so much
Plot it in origin where one can get exact value by curser method
Thank you so much for an informative comment, I shall try to use the cluster method as well. You are wonderful Dr. Wazir! Wonderful people leave wonderful comments-I'm truly grateful to have viewers like you.
I think the delta pH value is calculated by subtracting the initial pH value from the final.
Yes, u r right, initial minus final
Hi Sir, at last point, pH of the solution means, pH which is not adjusted by base or acid?
Yes, u r right
@@drsaqibscienceacademy sorry, i still dont understand about the pH of the solution. Which pH was in this video? Can you explain plz(
The solution which u r using and the pH of that solution. You need to adjust the pH of the solution which u r using. In this case the 0.1M NaCl solution. You have to adjust the pH
Is the pH of ZPC of two nanoparticles prepared in differents conditions can be same?
In the context of nanoparticles, the ZPC can be influenced by various factors, including the surface chemistry and composition. If two NP are prepared under different conditions, such as different synthesis methods or varying reaction parameters, it is possible that their ZPC values could be different. The ZPC is influenced by the surface functional groups and charges on the nanoparticles, which can be affected by the synthesis conditions. However, it's not guaranteed that the ZPC will always be different for nanoparticles prepared under different conditions, it can be same and different. The relationship between synthesis conditions and the surface properties of nanoparticles can be complex, and factors like the choice of stabilizers, reaction time, temperature, and other parameters can play a role. Hope it could solve the confusion...:)
Torphy Hill
"Thank you for your comment, Torphy Hill! I'm glad you found the video interesting. If you have any questions or need further clarification, feel free to ask!"